Tuesday, February 28, 2017

Looking Back at QRP Transmitters

When you get to a certain age, you get unsettled by people calling “your” music oldies. That’s how a few of us felt when we saw [Mikrowave1’s] video about Retro QRP – Solid Gold Years (see below). “QRP” is the ham radio term for low power operation, and the “solid gold” years in question are the 1960s to 1980. The videox has some good stuff, including some old books and some analysis of a popular one-transistor design from that time. He even tries a few different period transistors to see which works best.

[Mikrowave1] talks about the construction techniques used in that time frame, old transistors, and some vintage test equipment. You can even see an old ARC-5 command receiver in use to listen to the transmitter. These were made for use in military aircraft and were very common as surplus.

After analyzing the tiny transmitter with a scope and some other gear, [Mikrowave1] makes a real contact using the transmitter and the ARC-5. With 300 mW, he made a Morse code contact with a station over 375 miles away. Not bad!

At the end, he uses a communication monitor to measure the harmonic output of the transmitter. In one sense, it is considerable, but, of course, the low power limits the harmonics too. Adding a filter (which he does) cleans things up considerably. After showing the better output, he makes a 350-mile contact.

We recently covered a transmitter in a walnut shell, that wasn’t much different. If you want to learn more about how hams use QRP — low power operation — you can check out [Dan’s] post on that subject.


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Sunday, February 26, 2017

Lucid Dreaming | How to Lucid Dream - The Basics, for an absolute beginner

So I already have several Lucid Dreaming guides up on my channel - but it hit me: All my guides were a little verbose, spending a lot of time explaining WHY things need to be done a certain way, taking a long time to get to the point and cover HOW to actually do it - and I know for some people who just want to get on with their first lucid dreams that can be unappealing.

So I decided to make a new "How to Lucid Dream for Beginners" video that told you everything you needed to do, in under 3 minutes (and then told you where to go for more information afterwards, for those who're interested!). I'm hoping this'll also help solve the problem of a lot of beginners watching long 15 minute guides and then performing methods incorrectly because they remembered part of the guide wrong.

Here you go:


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Saturday, February 25, 2017

Loop Antenna is Portable

We don’t know if [OH8STN] has a military background, but we suspect he might since his recent post is about a “DIY Man Portable Magnetic Loop Antenna.” “Man-portable” is usually a military designation, and — we presume — he wouldn’t object to a woman transporting it either.

[OH8STN] started with a Chameleon antenna starter kit. This costs about $100 and is primarily a suitable variable capacitor with a 6:1 reduction drive premounted and soldered. Of course, you could source your own, but finding variable capacitors that can handle transmit duty (admittedly, these can apparently handle about 10 W continuous or 25 W on single sideband) can be tricky, especially these days. Although he started with a kit, he did modify the antenna to switch between two different sets of ham radio bands. You can see the antenna in the video below.

Loop antennas aren’t ideal–but neither is any other small antenna. Because the loop is tightly tuned to a particular frequency, it requires retuning for even relatively small frequency changes, even though it can operate on many different frequencies. If you want more technical details, you might enjoy this recent presentation from [W4RAX]. The links at the end are worth checking out, too.

Of course, in addition to the starter kit, you need some other components, and the video shows it all. You also need some tools, but we were amused to see that for bending the aluminum loop, [OH8STN] simply wrapped it around a tree trunk of suitable circumference.

Loop antennas are popular with apartment- and other city-dwellers. But if you are just looking for exotic radiators, perhaps try sea water. Or you could have a look at a very short dipole-like antenna called the Poynting vector antenna.


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Lucid Dreaming | Discouraged with MILD

After trying pretty much everything, I’ve decided MILD is going to be my technique. I’m determined to become good at it and I practice every night. I simply try to instruct myself to remember that the “next time I notice I’m out of bed, seeing things or BOTH, it will be a dream” (or something along those lines). There is a problem, though:

Have practiced for a month but it’s just not working :( I know it’s all about prospective memory but for some reason I can’t seem to set it like I would remembering to buy something at a shop, or remembering to do something later in the day, for example. I always completely forget the intention whilst asleep, even if I thought I set the intention well. It should be simple but I’m not sure why I can’t accomplish it.

Would anyone have any advice about this? Thanks.


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Friday, February 24, 2017

Ham Goes Nuts for Tiny Transmitter

What’s the minimal BOM for a working amateur radio transmitter? Looks like you can get away with seven parts, or eight if you include the walnut. You’ve got to have a walnut.

Some hams really love the challenge of QRP, or the deliberate use of low-power transmitters to provide a challenge to making long-distance contacts. We’ve covered the world of QRP before and noted that while QRP rigs don’t throw a lot of power, it doesn’t mean that they need to be simple. Some get quite complex and support many different modulation schemes, even digital modes. With only a single 2N3904 transistor,  [Jarno (PA3DMI)]’s tiny transmitter won’t do much more than send Morse using CW modulation, but given that it’s doing so from inside a walnut shell, we have no complaints. The two halves of the shell are hinged together and hold a scrap of perfboard for the simple quartz crystal oscillator. The prototype was tuned outside the shell,  and the 9-volt battery is obviously external, but aside from that it’s nothing but nuts.

We’d love to see [Jarno] add a spring to the hinge and contacts on the shell halves so no keyer is required. Who knows? Castanet-style keying might be all the rage with hams after that.


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Top 5 Best .380 Pocket Pistols for Concealed Carry

by Nicholas

More Americans are concealed carrying today for personal protection more than at any time before. The result of this in recent years has been an explosion of sales for pistols designed specifically for concealed carry in the pocket for deep concealment.

For this reason, in the past five or so years, the market for .380 pocket pistols (also known as pocket rockets) has skyrocketed.  Now, there are more pocket pistols available than ever before.

But does this mean that every pocket pistol is worth your consideration to serve as your concealed carry piece? Not at all. Some pocket pistols have proven themselves to be of the utmost quality, while others have demonstrated repeatedly that they are unreliable or simply poorly made.

To help you along, we’ve compiled a list of five of the best .380 pocket pistols that are currently available for concealed carry. No pistol is 100% perfect by any means (what gun is?), but they have shown through their track records to be the most reliable and practical offerings for a pocket .380 today.

Presented in alphabetical order, here they are:

COLT MUSTANG XSP

If you ever wanted a 1911 small enough to fit in your pocket, the Colt Mustang is definitely the gun for you.  The Mustang was actually one of the most successful pocket rockets ever produced, and in the 1980s and 90s, it was especially popular as the Pocketlite model.

But the one big downside to the Pocketlite was its all-steel frame, which made it heavy (at least for a pocket pistol).  In 1987, Colt remedied this by re-crafting the Mustang Pocketlite into the Mustang XSP, which is a more modern and polymer framed version.

The Mustang XSP features a total weight of 11.8 ounces, with a length of 5.5 inches.  It holds 6 rounds in the magazine, though an extended 7 round magazine is also available.

Like the 1911, the Mustang XSP is a single action handgun, meaning the gun can only be fired with the hammer cocked back. This means that there are two different ways to carry the Mustang: either with the hammer cocked back and the safety on (cocked and locked), or with the hammer down. Although the latter method may feel safer, it will be significantly slower to draw and fire since you’ll need to manually pull back the hammer before firing.

Colt still produces the Pocketlite variant today, so you do have options.  But the XSP represents the lighter and more modern option.

GLOCK 42

While the G42 is easily the biggest pistol on this list, it’s still small and light enough to fit into a pocket.  As with the rest of the Glock line-up, the G42 is striker fired.  It has no manual safeties, other than the blade on the trigger that must be depressed to the trigger to be pulled back.  In other words, takes the reliability and the simplicity that Glock is known for and has condensed it into their smallest package yet.

The G42 weighs less than 14 ounces and is just under six inches in length. While that’s slightly larger than the other pocket .380s on this list, the trade off is that the G42 to be easier to fire (.380 pocket pistols tend to be snappy in general). The higher profile sights and longer sight radius are two more major advantages.

If there’s a downside to the G42, it’s the six round capacities. While that’s the standard capacity for a pocket .380 pistol, the slightly larger size on the G42 should make one expect a larger capacity of seven rounds at least. If you train yourself to be accurate with it, it shouldn’t be an issue.

RUGER LCP II

The Ruger LCP II is the second generation of the LCP pistol and makes several significant improvements over the first generation.  It’s safe to say the original LCP took the pocket pistol market by storm, and become enormously popular with civilians as a CCW and with law enforcement officers as a back-up weapon.

Nonetheless, the original LCP has many flaws. The trigger pull in particular is regularly condemned for being long and gritty. The slide won’t lock open on the last round signaling the gun is empty.

Ruger has completely redesigned the LCP with the LCP II, and while retaining the original size of the LCP, they have greatly improved the trigger and included a slide release that works on the pistol. For safety reasons, the Glock-style blade safety is now present on the front of the trigger and must be depressed for the gun to fire.

All in all, the LCP has proven itself to be a reliable and dependable .380 pocket rocket.  The sights are minimal, but a Crimson Trace laser sight can always be installed as well to help increase accuracy.  The original LCP is still available from Ruger for sale, but the LCP II makes many significant improvements and may be the more desirable option for you.

SMITH & WESSON M&P BODYGUARD .380

Smith & Wesson’s answer to the Ruger LCP, the Bodyguard .380 is the smallest gun in Smith & Wesson’s world famous M&P line-up. But unlike other M&P semi-automatic pistols, the Bodyguard is hammer fired. Other than that, it’s basically a full size M&P that’s been shrunk down and re-chambered for .380.

The M&P Bodyguard has a weight of 12.3 ounces and a length of 5.25 inches. The slide is constructed out of a rust resistant stainless steel and then coated in black so it’s less visible. It features a slide stop lever so unlike the original LCP, the gun will lock back after the last shot to tell you it’s empty.

Two variants are available, one with a manual safety on the frame and one without it.

TAURUS PT738 TCP

There are those who will be looking for a gun on a budget, and for those looking for a .380 pocket pistol on a budget, the Taurus PT738 TCP will be their answer. The TCP can easily be found new on the market for less than $200, which is far less than other pistols on the market.

You might think that this means the TCP is of lower quality than the other pistols on this list because of the price reduction, but the opposite is true. The TCP has been found to have equal reliability and quality as its predecessors.

Coming in at just over 10 ounces in weight and with a 6 shot magazine capacity, the TCP is optimal for deep concealment in the pocket. Thanks to its locked-breech design, recoil is manageable for a pocket .380.

As with all Taurus firearms that are produced today, the TCP comes with Taurus’s trademark security system. If a key that comes with the gun is inserted into a lock on the gun and twisted, the gun will be rendered useless and unable to fire.

This could either be a plus or a minus depending on how you look at it. A plus is that your gun will have virtually no chance of firing should a child find it while it’s being stored away, but a minus if you forget to switch the key off when you carry it, you won’t be able to defend yourself with it in a life-or-death situation.  For this reason, you have to make it a habit to make sure that the lock has been switched off before you carry.

CONCLUSION

Any one of these pocket .380s represents a solid option for deep cover pocket concealed carry.  None of them are perfect and none of them are going to be the most fun gun to shoot, but they are perfectly at home in your pocket and will be reliable in a self-defense situation.

Since your pocket .380 is a pistol that you will be likely be carrying with you every single day, it’s vitally important that you choose the one that is the most comfortable to you. This importance simply cannot be overstated.

Physically hold onto each of them at the sporting goods store and even consider shooting a few of them at a range that has them available for rent. This is the only way to truly determine which pistol will be the best choice for you and deserves to ride in your pocket on a daily basis.



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Thursday, February 23, 2017

Universal Radio Hacker

If you are fascinated by stories you read on sites like Hackaday in which people reverse engineer wireless protocols, you may have been tempted to hook up your RTL-SDR stick and have a go for yourself. Unfortunately then you may have encountered the rather steep learning curve that comes with these activities, and been repelled by a world with far more of the 1337 about it than you possess. You give up after an evening spent in command-line dependency hell, and move on to the next thing that catches your eye.

You could then be interested by [Jopohl]’s Universal Radio Hacker. It’s a handy piece of software for investigating unknown wireless protocols. It supports a range of software defined radios including the dirt-cheap RTL-SDR sticks, quickly demodulates any signals you identify, and provides a whole suite of tools to help you extract the data they contain. And for those of you scarred by dependency hell, installation is simple, at least for this Hackaday scribe. If you own an SDR transceiver, it can even send a reply.

To prove how straightforward the package is, we put an RTL stick into a spare USB port and ran the software. A little investigation of the menus found the spectrum analyser, with which we were able to identify the 433 MHz packets coming periodically from a wireless thermometer. Running the record function allowed us to capture several packets, after which we could use the interpretation and analysis screens to look at the binary stream for each one. All in the first ten minutes after installation, which in our view makes it an easy to use piece of software. It didn’t deliver blinding insight into the content of the packets, that still needs brain power, but at least if we were reverse engineering them we wouldn’t have wasted time fighting the software.

We’ve had so many reverse engineering wireless protocol stories over the years, to pick only a couple seems to miss the bulk of the story. However both this temperature sensor and this weather station show how fiddly it can be without a handy software package to make it easy.

Via Hacker News.


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Wednesday, February 22, 2017

Radio and Phone Speaker has Style

Building a crystal radio isn’t exactly rocket science. Some people who build them go for pushing them technically as far as they can go. Others, like [Billy Cheung], go for style points. The modular radio and phone speaker looks like it came out of the movie Brazil. The metallic gramophone-like speaker horn adds to the appeal and mechanically amplifies the sound, too.

The video (see below) isn’t exactly a how-to, but if you watch to the end there is enough information that you could probably reproduce something at least similar. There are actually several horns. One is made from copper, another from paper, and one from a plastic bottle.

There’s also a socket to take different detectors. The radio appears to have a great frequency range, although you’ll have to squint at the video to see the schematic. We are hoping [Billy] will have it posted on his blog, too, eventually. Same goes for the templates for cutting out and assembling the horns. However, if you freeze the video, you can see most, if not all, of the major components.

We’ve seen [Billy] around here before with simple crystal radios. If you want to see just how far you can go with a crystal radio obsession, look no further than this.


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Interview: Nacer Chahat Designs Antennae for Mars CubeSats

Tuesday, February 21, 2017

A Real Star Trek Communicator Badge

Star Trek has never let technology get in the way of a good story. Gene Roddenberry and the writers of the show thought up some amazing gadgets, from transporters to replicators to the warp core itself. Star Trek: The Next Generation brought us the iconic communicator badge. In 1987, a long-range radio device which could fit in a pin was science fiction. [Joe] is bringing these badges a bit closer to the real world with his entry in the 2017 Hackaday Sci-Fi Contest.

The first problem [Joe] dealt with was finding a radio which could run from watch batteries, and provide decently long-range operations. He chose the HopeRF RFM69HCW. Bringing fiction a bit closer to reality, this module has been used for orbital communications with low-cost satellites.

The Badge’s processor is a Teensy LC. [Joe] is rolling his own Teensy, which means using bootloader chips from PJRC, as well as the main microcontroller. Kicking the main micro into operation is where [Joe] is stuck right now. Somewhere between the breadboard and the first spin of the surface mount PCB things went a bit sideways. The oscillators are running, but there are no USB communications. [Joe] is trying another board spin. He made a few improvements and already has new boards on the way. Switching to a toaster oven or skillet paste and solder setup would definitely help him get the new badges up and running.


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Saturday, February 18, 2017

Lucid Dreaming | Need help. Can't go lucid

Hello there!
I started with lucid dreaming in october and I've had a dream journal since january and I also do reality checks during the day. My dream recall have increased much but I have not been able to go lucid yet. I have tried multiple strategies like WILD, DILD SILD.
So please help me some tips to be a better a dreamer and hopefully go lucid one day


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Lucid Dreaming | Is this a Lucid Dream?

Or is it just a mind trick? So I was in a cult, people were surrounding me chanting the same words the reptites chanted for Magus/Ozzie's return in Chrono Trigger. I looked around, I noticed where the chanting noise came from and did a reality check by plugging my nose and could still breathe (but could still feel myself plugging my nose), suddenly I was "lucid". I decided to do more reality checks of my own. I put my hand on a wall and hoped it went through and it did, I casted fire out of my hands, but I tried summoning my own sword by yelling "Summon sword!" That did not work, I tried another phrase "Give me a sword!" That didn't work either. Even summoning people didn't work either as I called out their names, and even looked behind, called out their names and turned back. I really wanted to kill everyone who captured me in the crazy cult, So in desire to destroy them I tried casting fire but somehow I couldn't except for the last time when I did, there was no harm done on them. They didn't even flinch when they were caught on fire.

So I coudln't even kill the guys so I decided to try to switch dream scenes by said someting along the lines of "Next scene!" but nothing happened. More people came in dressed in black. I ran to them and asked how I could summon things and they told me to "Stop ruining this dream" then took my lucidity away and pushed me into lava with the two other people I tried to summon. Before my feet could even touch the lava, I was transported to a different dream. I noticed one of the cult members in the back of the building in this dream but as I wasn't in control of myself, I just looked at them and ignored them.

So in a nutshell, I couldn't really summon much of anything, the dream characters took my lucidity away and killed me, every one of my reality checks worked, and after waking up I could almost remember everything about the dream. I've also took a sleeping pill before bed and did some sort of mantra telling myself that "I will lucid dream tonight".


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40-Acre HAARP Rides Again, And They Want You To Listen

News comes to us this week that the famous HAARP antenna array is to be brought back into service for experiments by the University of Alaska. Built in the 1990s for the US Air Force’s High Frequency Active Auroral Research Program, the array is a 40-acre site containing a phased array of 180 HF antennas and their associated high power transmitters. Its purpose it to  conduct research on charged particles in the upper atmosphere, but that hasn’t stopped an array of bizarre conspiracy theories being built around its existence.

The Air Force gave up the site to the university a few years ago, and it is their work that is about to recommence. They will be looking at the effects of charged particles on satellite-to-ground communications, as well as over-the-horizon communications and visible observations of the resulting airglow. If you live in Alaska you may be able to see the experiments in your skies, but residents elsewhere should be able to follow them with an HF radio. It’s even reported that they are seeking reports from SWLs (Short Wave Listeners). Frequencies and times will be announced on the @UAFGI Twitter account. Perhaps canny radio amateurs will join in the fun, after all it’s not often that the exact time and place of an aurora is known in advance.

Tinfoil hat wearers will no doubt have many entertaining things to say about this event, but for the rest of us it’s an opportunity for a grandstand seat on some cutting-edge atmospheric research. We’ve reported in the past on another piece of upper atmosphere research, a plan to seed it with plasma from cubesats, and for those of you that follow our Retrotechtacular series we’ve also featured a vintage look at over-the-horizon radar.

HAARP antenna array picture: Michael Kleiman, US Air Force [Public domain], via Wikimedia Commons.


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Free Speech, but Only if You’re a Leftist

With the presently overwhelming surge of “multi-culturalism”, feminism, gay “rights”, and all other forms of “social justice,” one might seem justified in thinking that freedom was expanding in the United States.  One might think that the free exchange of ideas was increasing, not only with the “social justice” movement, but also with the ever-increasing amount of information that is available to an ever-increasing amount of people through the internet and social media.

One might even think that with the amount of profanity on the radio, sex on TV and violence in video games, that censorship is decreasing, or even possibly dead. But despite these understandable assumptions, nothing could be further from the truth.

The fact is, that censorship in the West is at an all-time high.  People censor themselves, sometimes without even knowing it, in order to avoid the social stigma of being hateful in some form or another.  The major media organizations that flood our consciousness with a constant supply of “information” are censoring anything that does not agree with the ideology those who control them want to promote, or that threatens their objectives.

European countries, Canada, Australia, and even America are all passing laws that directly target speech they feel threatened by.

But why?  And why are all the things that would be traditionally censored in Western society now being allowed to go unchecked?

Because those that are in control of institutions of academia, the media, and governments in the west are purposefully attempting to bring about the destruction of Western civilization and put us under their complete control in a Marxist society ruled by a dictatorship they control or are benefited by.  That’s a pretty bold statement, I know.  Some are undoubtedly going to be skeptical, so let’s look at the evidence for my assertion.

First, it’s important to note that Marx and Engels wanted to put the entire world under communist rule, which would require abolishing national sovereignty.  They recognized that there would be resistance to this, by those that were in control of the capitalist system that they sought to topple, and by those they felt were enslaved by it.  They believed, or at least professed to believe, that the reasons why most working class people in a capitalist system would resist their goals was because of conditioning throughout their life beginning at birth.

This conditioning would start at birth because they would be raised in a family, being cared for, or psychologically traumatized by, depending upon your beliefs, their parents.  This experience would inculcate in them a belief and acceptance of a hierarchal system.  They somehow failed to notice that every socialist country to ever exist brutally suppressed its people.  But then again, they didn’t have the benefit of history that we have now.

They also believed, and with good reason, that those same parents that were traumatizing their children while caring for them and raising them would also instill into them the values that they believed in themselves.  Namely, moral values stemming from a belief in God.

These values were unacceptable to Marx and Engels.  They recognized that if they wanted to bring about the end of capitalism they were going to have to bring about the end of the family and of religion.  They talked about this in Chapter 2 of The Communist Manifesto, where they state that abolishment of the family is an “infamous proposal of the Communists”, that “the working men have no country”, and also, that  “Communism abolishes eternal truths, it abolishes all religion, and all morality, instead of constituting them on a new basis”.

So without even needing to get to the third chapter, we see that communists want to destroy religion, the family, countries, and national borders.  Do we see any of this being promoted in academia, the media, and by the state with descent being censored?

Let’s take a look at the first, and perhaps the most ironic area that we see Marxist values being promoted and everything else being censored: academia.

Just days ago a pro-life student’s group was denied official status at Strathclyde University in Scotland. Why? The pro-life students were told that the University was concerned that the pro-life students would “harass” and “intimidate” other students.

Across the pond in America, at Marquette University in Milwaukee, Wisconsin, angry pro-choice feminists destroyed a display created by pro-life students. Rather than reprimand vandals, the university’s democratic society praised the violent action by the feminists.  Somehow this wasn’t seen as intimidation or harassment.  A similar incident took place at Southern Methodist University in Texas, and a similar response was given.

Of course, that’s just religion, or arguably family, which is not the same as wanting to destroy national sovereignty.  Surely students these days appreciate national sovereignty since they want the government to pay for their student loans, right?

Wrong. From South Carolina high schools to UC Irvine, the American flag has been attacked by students and faculty.  Matthew Guevara of UC Irvine claimed that seeing the American flag at school made some students feel so uncomfortable that they didn’t even want to go inside. He says it represents “hate speech”.  He received support from his fellow students, 60% of them. One might wonder how these same students feel about the Mexican flag which is so often seen at anti-Trump protests?

Moving on, conservative speakers like Ben Shapiro and Milo Yiannapoulus have been banned from multiple college campuses across America.  The reason given for both of them is “hate speech”.  For those that don’t know, Ben Shapiro is a practicing Jew living in America, and Milo Yiannapoulus is a practicing homosexual living in the UK, so they both belong to groups of people who are typically the recipients of “hate speech”.

They are both conservative though, that’s what makes them hateful.  Both of them regularly expose the lies of the wage gap, Islam as a peaceful religion, and “white privilege”, which is what leftist use to replace the communist nomenclature “bourgeois” with these days.

This is why the left must support Black Lives Matter and Islam, because they are not Western white movements, they oppose Western values and they are deleterious to the fabric of Western society.  Anyone that exposes the truth that blacks in America are 200 times more likely to violently attack a white person than a white is to attack a black person is not fond of statistical analysis, they are racists.

Likewise, anyone that asks why Muslim immigrants are being shoveled into areas that the native population doesn’t want them is a white nationalist.  Both accusations have been hurled at Shapiro and Yiannapoulus, which is hilarious given that they are so antitypical for conservatives according to the leftist narrative that says Jews and gays would never think that way, only racist whites.

Ben Stein made a documentary entitled “Expelled:  No Intelligence Allowed”, in which he makes the clear case that anyone who dares to deviate from a hard line stance that Darwinian theory is unquestionably true will be fired and black listed.

To be clear, I’m not talking about professors bringing in the Bible and teaching from Genesis that God created Adam and Eve in the Garden of Eden on the sixth day.  I’m talking about professors and highly credentialed educators that have been fired simply for suggesting that Darwinian theory is inadequate as a scientific theory to fully explain the origin of life.  Marxists can’t allow God into the picture.

But those not currently attending college are not immune from the forced feeding of leftist propaganda and the censoring of everything else.  Anyone that is ever exposed to any mainstream media, including social media is immediately bombarded with Marxist ideology repackaged as intellectual progressive thinking, or political correctness.

Every major media outlet in America, CNN, MSNBC, and to a lesser extent Fox News, called now president elect Donald Trump a racist for wanting to build a wall on America’s southern border.  Never mind that Mexican is a nationality and not a race, or that Mexicans are largely the descendants of Europeans that slaughtered the natives, national borders are not racist.  But, they are detrimental to communist goals, as Marx and Engel stated, “the working men have no country”.

These days, entertainers have a loud voice that can give them powerful influence, even if the public doesn’t know where they got their ideas from.  Bill Nye, “the science guy” has said that people who deny that anthropogenic climate change is a reality should be imprisoned.  “Anthropogenic” being the key word there, because it’s not enough that one is willing to entertain the idea that the climate could be changing, one has to accept as absolute truth that humans are responsible for it and accept the UN’s proposed solutions in order to satisfy the left.

Why?  Because all of the suggested solutions to fight climate change, which may or may not be happening, and may or may not be caused by humans if it is happening, and may or may not be a bad thing if it is both happening and being caused by humans, all of their solutions are Marxist.

They want to limit private ownership, even completely abolish private property, of course the state has to be given unlimited powers to do this, and all resources will be rationed to the humans that are allowed to live by this new god-like state.

But what about social media?  You can always voice your opinion on Facebook or Twitter right?  Sure, and as long as your opinions are Marxist, nobody will censor them. But if they’re not?

Facebook co-founder and CEO Mark Zuckerberg was caught on a “hot mic” telling leftist German leader Angela Merkel that they (Facebook) are working on censoring posts that voiced criticism of the massive “wave of Syrian refugees” flooding into Germany and other European nations.  But posts calling for the death of white police officers can be found in abundance.  Apparently that’s not “hate speech”.

In fairness, in a free society based on Western values, corporations should be free to say whatever they want to say, to promote whatever ideals those who run those corporations have, and to censor ideals that oppose theirs.  But are nations themselves, Western nations, really promoting Marxism and censoring descent by force through the rule of law and not just asking Facebook to do it?  Yes!

Canada has passed “hate speech” laws that seem to only be enforced or reported on when the victim is Muslim or homosexual.  The vast majority of these crimes fall under the category of “mischief” and are not violent attacks but usually involve passing out literature or holding signs that offend someone.

Because Canada is so concerned with offending people based on their religion that they passed laws prohibiting homeschooling parents (who tend to be overwhelmingly Christian) from teaching their children that homosexuality is morally wrong, and of course homosexuality and the transgender lifestyle is being promoted in the public schools.

It has been deemed to be “hateful” to suggest that a man who thinks he is a woman is mentally ill, thus thinking that one is a gender other than the one that they are is not treated medically as mental illness.  Yet, there is no group with a higher suicide rate than transexuals, only the severely mentally ill have comparable rates.

But, this is blamed on “hate speech” all over again and we are told that the suicides are a result of persecution.  Even though blacks who were enslaved and Jews in the holocaust had lower suicide rates.  So, these people’s mental illness goes untreated in the name of “love”.  Not because Marxist care at all about LGBT folks, but because they want to promote anything that erodes at the family unit.

Australia has passed laws making it a crime to speak out against Islam.  Some might suggest that I am being misleading and the law says that it is a crime to vilify anyone because of their religion and that someone would be prosecuted for vilifying a Christian too.

Well, what did Australian Prime Minister Malcomb Turnbull say?  He said, “It is important for us to promote and encourage Islam.”  Is this because Turnbull loves Muslims?  Doubtful, it’s more likely because Turnbull likes anything that threatens western values and western society and gives him a moral guise to cover for his attack on free speech which would be critical of his government.

Sometimes the censorship isn’t done officially, or legally, and then officially denied.  With words that are politically inconvenient connotations can just be edited out as though they never existed.  And where is this sort of censorship being performed?  North Korea in foreign media that is critical of dictatorships?

Maybe, but I was thinking more along the lines of earlier this year when the White House (Dan’s note: under Obama) “edited” the audio of French president Hollande in order to remove the words “Islamic terrorism” from the English translation of the French president’s remarks, and then they claimed that it was a technical difficulty. So when events don’t match your narrative, just edit them so they are little less inconvenient.

Ironically enough, after selectively editing White House audio, the most frightening case of state based censorship becoming the law of the land is taking shape right now in America.  After Wikileaks released John Podesta’s emails, a theory developed that there was a code in some of these emails that substituted words that would have had clear pedophiliac meaning with words about food.

Of course, these accusations are denied, well sort of, they aren’t even addressed directly so in a way they aren’t being denied.  Instead, Hilary Clinton and most of the talking heads on corporate news stations are calling for “private and public” action to prevent the spread of “fake news”.

Now, let’s just say that “Pizzagate” isn’t true and that Podesta and the Clintons are not perverts of the worst kind, who is going to be put in charge of determining what is real and what is fake?  For those that read Orwell’s 1984, you would know that the Ministry of Truth will handle that.  And that is the obvious conclusion to Clinton advocating for public action to prevent “fake news”.  That means that the state will determine what is true and what is false, along with corporate news of course.

But don’t worry comrade, things have always been like this! They aren’t getting worse, cops kill more blacks than whites even though the CDC’s statistics say otherwise, homosexuality and transgender lifestyles are healthy even though they have astronomical suicide rates. Multiculturalism will be a boost to European economies, Islam is a religion of peace, climate change is happening and your property is the cause of it (even though the evidence has been falsified as with “climate gate”).

There is no God, and therefore no basis for morals, but we still need to be concerned about the plight of everyone the left tells us to be concerned with (especially polar bears). Western society is evil, even though Western values are always used as a measurement of how evil Western society is, and no other society is ever presented as a viable alternative.

And Oceana has always been at war with Eurasia.



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World’s Thinnest Morse Code Touch Paddle

Morse code enthusiasts can be picky about their paddles. After all, they are the interface between the man and the machine, and experienced telegraphers can recognize each other by their “hands”. So even though [Edgar] started out on a cheap, clicky paddle, it wouldn’t be long before he made a better one of his own. And in the process, he also made what we think is probably the thinnest paddle out there, being a single sheet of FR4 PCB material and a button cell battery. This would be perfect for a pocketable QRP (low-power) rig. Check it out in action in the video below.

There’s not much to a Morse code paddle. It could, of course, be as simple as two switches — one for “dit” and one for “dah”. You could make one out of a paperclip. [Edgar]’s version replaces the switches with capacitive sensing, done by the ATtiny4 on board. Because this was an entry in the 1kB challenge, he prioritized code size over features, and got it down to a ridiculous 126 bytes! Even so, it has deluxe features like autorepeat. We’d have to dig into the code to see if it’s iambic.

We’ve seen capacitive touch sensor paddles before, of course. In fact, more than once. But this one is very nicely executed and a beautiful one-piece solution.

A DIY Morse code paddle is a great simple project, and it’s one more part of your radio shack that you built up yourself. Having essentially everything defined by the firmware means that you can customize it to fit your skills and desires.


Filed under: radio hacks

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Wednesday, February 15, 2017

LTSpice for Radio Amateurs (and Others)

We don’t think [VK4FFAB] did himself a favor by calling his seven-part LTSpice tutorial LTSpice for Radio Amateurs. Sure, the posts do focus on radio frequency analysis, but these days lots of people are involved in radio work that aren’t necessarily hams.

Either way, if you are interested in simulating RF amplifiers and filters, you ought to check these posts out. Of course, the first few cover simple things like voltage dividers just to get your feet wet. The final part even covers a double-balanced mixer with some transformers, so there’s quite a range of material.

We like LTSpice. It is powerful, easy to use, runs with Linux (using WINE), and the price is right. Since it is popular, there are also plenty of examples and tutorials, including this one.

We were glad to see [VK4FFAB] tackle transformers as they aren’t very easy to work through without some examples. We also talked about the transformer problem in part three of our LTSpice tutorial. In fact, you might find our video helpful when working through the first two post from [VK4FFAB]. We’ve seen other radio projects use LTSpice, including a regenerative receiver. If installing LTSpice is too much of a commitment for you, you can also do simulations in your browser. The Falstad simulator isn’t as powerful, but it does have some pretty neat features of its own.


Filed under: radio hacks, software hacks

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Lucid Dreaming | Starting to 'get' it

I've been messing around playing with induction methods for over 18 months now. Some success, nothing too exciting to report. Except that I have recently tried doing it a bit differently, and also realised that a lucid dream really is still a dream and very dream like: when I first started out I imagined I would be entering a totally new dimension as real as real life but better because I could do absolutely anything.

I think I might be making some progress now.

Firstly I know that when I get lucid (which doesn't happen very often) I am still in a dream: very random, nothing is really there unless I concentrate on it and make it real, anything I look at I have to imagine it into existence, and I have to concentrate like I am meditating to keep awake in the dream. This is probably because I am still very much a beginner, but it's not something I realised when I first started and hence a lot of initial disappointment. I realise now that I have to build on what I have learnt already and work on building realism when I am lucid becasue it's not going to happen without effort.

Secondly - induction methods. I have to say having read Charley Morleys book (am I allowed to say that on here?) I have adjusted my technique with good effect. He suggests using prayer to ask your higher self (or God or whoever) to allow you to get lucid, and I have found it to be a remarkable effective method used before going to sleep. I used to spend night after night trying to WILD to absolutely no effect but he explains how to do it using Dream Yoga methods of concentrating on breathing and bodily sensations whilst falling asleep, and, although I haven't yet managed to WILD properly, the technique really seems to set me up to lucid dream very much like doing SSILD (which again never did anything for me in its usual form). Combining this with mindfulness practice, and trying to see waking reality as another dream like, but very persistent, state on a regular basis is starting to get me some results.

In other words I think that playing around, combining methods, and staying determined when nothing seems to be working can pay dividends in the end for anyone :lol:


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Tuesday, February 14, 2017

Why Are the Lefists So In Love With Islam

by Isabella

Why is the left so in love with Islam and so dead set on defending it against any and all reasonable scrutiny?

That question wouldn’t even make sense to a leftist, or someone who has, through mental osmosis, taken in the mass amounts of leftist propaganda that saturate the internet, television, and print media.  For the leftist, or the easily influenced and unquestioning “moderate”, there is no contradiction for them to wholeheartedly embrace and defend Islam.

In fact, these folks will, without hesitation, call any criticism of Islam “Islamophobia”, or apply some other label upon it that denotes bigotry as the only possible motive for such criticism.  This shouldn’t come as any surprise to those who have ever dared to question the left’s narrative on, well, anything.  Dismissive accusations are all the left has to defend itself.

So why is it that they are so determined to protect Islam in particular from any and all criticism?  To explain the merit of the question, let’s take a look at a few of the basic values the left professes, and what Islam has to say about these issues.  Otherwise, it might seem strange to question why the peace-loving (and presently rioting) left so vehemently defends “the religion of peace”.

Anyone with any recent exposure to the media has certainly heard that the reason that president-elect Donald Trump won the presidential election was all forms of bigotry, with sexism, racism, and religious intolerance topping the list of his, and his supporters’, offenses.  Those of the left promote themselves as the defenders of women’s rights, racial equality, and as the most tolerant bunch of peace-loving people to ever walk the earth.

Setting aside the fact that wage gaps, whether based on sex or race, have been disproven by economists for decades, or the unscrupulous and illegal practices of the Obama administration using the IRS to target Christian and conservative organizations, let’s just pretend that the left does actually care about women, minorities, and tolerance.  After all, most people who hold to leftist ideals are so ill-informed that they might not know what their politicians are doing and what the policies they advocate for actually produce.  So, assuming (which we know to be more than generous) that the left has the moral goals and ideals it professes to have let’s see what position Islam takes on these very issues:

Democrats and the leftist media couldn’t talk enough about the “grab ‘em by the p****y” Trump tape.  After all, the left in every way, shape, and form supports everything woman, even if they can’t explain how.  So, we should expect that Muslims would hold this same view, since the left so vehemently defends Islam, right?

So, what do actual Islamic religious and historic texts say about how  Muslim men should treat women?  Let’s take a look. The Quran, 4:24 says “And [also prohibited to you are all] married women except those your right hands possess…”.  This passage might not seem to say much at all, so let’s look at some historical context for why Muslims say that Allah revealed this verse to Mohammad in the first place, we find this context in Suna Abu Dawud 2150 where it states “Abu Sa’id Al Khudri said “The Apostle of Allaah(ï·º) sent a military expedition to Awtas on the occasion of the battle of Hunain. They met their enemy and fought with them.

They defeated them and took them captives. Some of the Companions of Apostle of Allaah (ï·º) were reluctant to have relations with the female captives because of their pagan husbands. So, Allaah the exalted sent down the Qur’anic verse “And all married women (are forbidden) unto you save those (captives) whom your right-hand posses. This is to say that they are lawful for them when they complete their waiting period.”

This verse was “revealed” because some of the Muslims that had taken war captives were reluctant to rape them because their husbands were still alive, which would be adultery, a capital offense in Islam, luckily for them Allah jumped into to set the record straight and let them know that it wasn’t adultery if the women were captives or slaves.  This is only one instance in a nearly endless line of divinely revealed verses about how women can be treated like property in Islam.

If we had the time, we could go on to talk about how beating your wife is lawful and how the testimony of a woman is worth half that of a man, which means rape allegations can never be proven. Or to discuss left’s refusal of how the way Muslim culture views women is experiencing an extreme example in Europe.

Progressive European governments are so terrified of offending Muslims that rape allegations go unpunished as European women are experiencing record-high numbers of sexual assault incidences. Muslim migrants are used to countries in which rape is rarely punished, and instead of holding them accountable to European standards of civility and chivalry, laws are being bent to accommodate Muslim refugees.

But many more articles could be written discussing the European refugee crisis and the dangers of multi-culturalism. For now, let’s move on to the left and Islam’s view of race relations.

Despite all evidence to the contrary, the left champions itself as the defender of all racial minorities.  One of the more comical instances of this is when Collin Kaepernick, a half white, half black guy raised by an adoptive white family after being abandoned by his black father, and the quarterback for the San Francisco 49ers, refused to stand during the playing of the National Anthem at a preseason game.

After the game, Kaepernick stated in an interview “I am not going to stand up to show pride in a flag for a country that oppresses black people and people of color.”  Now this is particularly interesting because not only did the leftist media fall all over themselves to report on this without end, but Kaepernick is a Muslim convert.

Maybe Kaepernick and CNN have it right, and Saudi Arabi and Qatar have it wrong.  Maybe a nation like America that was founded by white Protestants and that has codified laws protecting people of all races is, in fact, oppressive because it’s not Islamic, and Arab countries still have African slaves purely by coincidence.  Maybe Islam is not only a religion of peace, as it is always referred to as in the leftist media, but maybe it’s also a religion of racial equality founded by a strong, noble man of color with better values than the white devils that founded and spread Christianity.

Maybe, but then it must be one hell of a coincidence that not only are there repeated descriptions of Mohammad as a white man within texts held to be sacred by Muslims (Sahih Al Bukhari 63, Sahih Muslim 6081, Sahih Muslim 6071, and half a dozen others) but as a white man that owned black slaves (Sahih Al Bukhari 7263, Sahih Al Bukhari 6161, Sunan an Nusa’i 3858).

In fact, to top all of that, it’s a crime punishable by death to assert that Mohammad was a black in Islam, this can be seen in Muhammad Messenger of Allah, Ash-Shifa, a book of Mohammad’s life that is held in high regard by Muslims, where it states “…whoever says that the prophet was black is killed, the prophet was not black…”.  Not a lot of ambiguity on that one.  So far Islam looks like a misogynistic cult founded by a slave owning white man…

Things don’t get much better when we look at Islam and how it deals with anyone with dissenting views or with adherents of other religions.  While there are literally over 100 verses commanding violence toward others in the Quran, none is quite so clear and undeniable as Quran 8:12 which says, “I will cast terror into the hearts of those who disbelieve. Therefore strike off their heads and strike off every fingertip of them”.

Notice the reason for cutting off people’s heads in the verse is not self-defense, it’s not even theft, adultery, or some crime, it is for disbelief.  Yet we are told ad nauseam that when ISIS targets Christians or other religious minorities for murder that it isn’t consistent with the teachings of Islam,  despite the fact that ISIS makes videos showcasing their murders they make sure to include Quranic quotes that justify, if not command, their murder.

Yet Obama and the liberal media insisted that the actions of ISIS, and the like, are against the teachings set forth in the Quran.  Do they have any evidence to offer up in defense of their view of Islam and its teachings to counter the quotes that ISIS uses?  Yes, surprisingly enough they do, it’s Quran 5:32, which leftists and Muslims intending to mislead people about Islam will quote as saying “…if any one killed a person, it would be as if he killed the whole of mankind; and if any one saved a life, it would be as if he saved the life of the whole of mankind…” – The Holy Quran.  Despite the aforementioned discrepancies between leftism and Islam, one characteristic they do share is dishonesty.

So let’s take a closer look at this verse, and what gets excluded when Muslims or leftists quote it.  For those who like to think for themselves and would go so far as to look this verse up they would find that it reads ”On that account: We ordained for the Children of Israel that if any one slew a person – unless it be for murder or for spreading mischief in the land – it would be as if he slew the whole people: and if anyone saved a life, it would be as if he saved the life of the whole people. Then although there came to them Our apostles with clear signs, yet, even after that, many of them continued to commit excesses in the land.”.

In case you didn’t notice, the verse starts out by stating that this peaceful command was not for Muslims, but for Jews, it was taken from the Jewish Talmud.  And you will certainly not hear the next verse quoted to provide some context for what is commanded in the present tense for Muslims, it says, “The punishment of those who wage war against God and His Apostle, and strive with might and main for mischief through the land is: execution, or crucifixion, or the cutting off of hands and feet from opposite sides, or exile from the land: that is their disgrace in this world, and a heavy punishment is theirs in the Hereafter.”

So, the “…” that always comes before and after verse 5:32 is quite a conveniently applied “…”.  The most commonly quoted verse from the Quran used to provide evidence that Islam is a peaceful religion isn’t even an Islamic verse, it’s a Jewish one, and is proceeded by a violent command for Muslims to murder mischief makers.

So, once again, why is it that the left so loves Islam? It seems to be that Islam, unlike the pathetically weak Western left, actually poses a threat to conservative Western values.  Perhaps General Flynn said it best when he said “ Islam is a political ideology…It definitely hides behind this notion of it being a religion. And I have a very, very tough time because I don’t see a lot of people screaming ‘Jesus Christ’ with hatchets or machetes or rifles shooting up clubs or hatcheting, literally axing families on a train, or like they just killed a couple of police officers with a machete. It’s unbelievable. So we have a problem.  It’s like cancer…And it’s like a malignant cancer, though, in this case. It has metastasized.”.

There isn’t a rational or logical reason for those who claim to care about women’s rights, racial minorities, or tolerance, to support Islam, but leftists aren’t rational or logical, they are ignorant and hateful.  They love Islam despite the clear danger it would put them in, because it poses a threat to that which they hate most, Western civilization.



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Monday, February 13, 2017

A Lightweight Two Metre Carbon Fibre Yagi Antenna

If you’ve ever cast your eye towards the rooftops, you’ll be familiar with the Yagi antenna. A dipole radiator with a reflector and a series of passive director elements in front of it, you’ll find them in all fields of radio including in a lot of cases the TV antenna on your rooftop.

In the world of amateur radio they are used extensively, both in fixed and portable situations. One of their most portable uses comes from the amateur satellite community, who at the most basic level use handheld Yagi antennas to manually track passing satellites. As you can imagine, holding up an antenna for the pass of a satellite can be a test for your muscles, so a lot of effort has gone into making Yagis for this application that are as lightweight as possible.

[Tysonpower] has a contribution to the world of lightweight Yagis, he’s taken a conventional design with a PVC boom and updated it with a stronger and lighter boom made from carbon fibre composite pipe. The elements are copper-coated steel welding rods, some inexpensive aluminium clamps came from AliExpress, and all is held together by some 3D-printed parts. As a result the whole unit comes in at a claimed bargain price of under 20 Euros.

This antenna is for the 2 M (144 MHz) amateur band, but since it’s based on the [WB0CMT] “7 dB for 7 bucks”  (PDF) design it should be easily modified for other frequencies. The 3D printed parts can be found on Thingiverse,  and he’s also posted a couple of videos in German. We’ve posted the one showing the build below the break, you can find the other showing the antenna being tested at the link above.

We’ve featured a few Yagi builds here in the past, like this one using metal tape measures as elements, and another using aluminium arrow shafts.


Filed under: radio hacks

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How To Receive Pictures From Spaaace!

Sunday, February 12, 2017

Concealed Carry Revolvers

by Nicholas

Even in the 21st Century where concealed carry semi-automatics from .32 to .45 gauge have taken the market by storm, the traditional revolver holds strong. Revolvers continue to sell off the shelves in droves, and the likely reason is that people know that you can always depend on a revolver to save your life.

The semi-auto vs. revolver debate has been going for many years and will likely never end. Every individual has their preferences. But even though semi-automatics have become more modern and updated with each passing year, the basic design of the revolver still holds many advantages over a semi-automatic.

Let’s go over what these advantages are, and then talk about 5 of the best-concealed carry revolvers on the market.

WHY CHOOSE A REVOLVER OVER A SEMI-AUTO PISTOL FOR CONCEALED CARRY?

There’s no denying that there are many appealing reasons to own a semi-automatic rather than a revolver. Semi-autos typically hold more bullets, are easier and faster to reload, and today’s models are highly ergonomic.

Still, revolvers continue to hold their own against the semi-automatic when it comes to concealed carry. There are many advantages with a revolver that you won’t get with a semi-auto and that benefit you for concealed carry and self-defense. These advantages include:

It’s Simple

Revolvers are so simple that even those who have never even touched a gun before can figure out how to use one. Ease of use can prove to be immensely beneficial to you if you need to use your backup revolver to arm someone else in an emergency defense situation. There are no safeties to switch off or slides to manipulate, just point and shoot.

It’s Reliable

Yes, semi-automatics are reliable too, but all a revolver needs to do is turn the cylinder to fire the next round. For overall reliability, a revolver is hard to beat.

You Can Jam It into Someone in a Close-Range Fight

In a close fight where an opponent is physically attacking you, you would have to fire your weapon at point blank range. The problem with a semi-automatic in this situation is if you jam the muzzle into your attacker, the slide will be pushed out of battery and cause it to jam or not even fire. The barrel of the revolver has no effect on the cylinder, so you can jam it into an opponent up close and still fire all of your rounds if you had to.

It’s Safe

While revolvers don’t have manual safeties, they do have long trigger pulls (at least on double action). The long trigger pull makes them safe guns to carry.

These are just four of the biggest reasons to carry a revolver over a semi-auto. Semi-autos have their advantages as well, but the advantages to owning a revolver are undeniably compelling.

Now that we know the reasons to owning a revolver over a semi-auto, let’s find out about what some of the best-concealed carry revolvers are:

RUGER LCR

The Ruger LCR was revolutionary upon its first release in 2009. It was the first successful polymer-framed revolver available (although the inside of the frame is aluminum alloy). The polymer frame made it very lightweight in comparison to its main competitor, the Smith & Wesson J-Frame series or Ruger’s SP101. Lightweight and reliable, the LCR is an excellent choice for concealed carry in general.

Today the Ruger LCR is available in numerous calibers, including .22 LR, .22 Magnum, .38 Special, 9mm Luger, .357 Magnum, and .327 Federal Magnum. In other words, you have options!

Beyond calibers, the LCR is available in numerous configurations. While the standard model has a 2-inch barrel and covered hammer (called hammerless), it is also available with an exposed hammer and/or a 3-inch barrel instead.

As with all Ruger DA revolvers, the LCR features a push button cylinder release that will allow the cylinder to swing out when depressed.

RUGER SP101

The Ruger SP101 is built like a tank, and you’ll feel it when you hold it. While the SP101 is easily the heaviest revolver in this list, the trade off is enhanced durability and shoot ability. A major complaint about compact or snub nose revolvers, in general, is that they are difficult to shoot and have heavy recoil. Recoil is severely mitigated with the SP101.

The SP101 holds five rounds of .357 Magnum, which means it can also chamber and shoot .38 Special if you desire a lighter round. Also, Ruger also makes the SP101 in .327 Federal Magnum, which holds six rounds.

Standard SP101’s have exposed hammers, but so-called ‘hammerless’ variants are also available. You also have your choice between a 2-inch, 3-inch, or 4-inch barrel.

All in all, even if you find the SP101 a little heavier than you would like for concealed carry, you should at least find it to be one of the more easy-to-shoot compact revolvers on the market. Just like the LCR, it features a push button cylinder release on the side that will swing out the cylinder when depressed.

SMITH & WESSON J-FRAME

There are so many Smith & Wesson J-Frame designs in general that we cannot narrow it down to just one specific model for this article. The J-Frame, which has been around since 1950, is simply the smallest frame of the revolver in Smith & Wesson’s lineup and is designed exclusively for concealed carry.

J-Frame revolvers are small, light, steel framed, and reliable. They’ve served as CCW weapons for civilians and as backup guns for detectives and police officers for decades, including today.

While the J-Frame wasn’t the first snub nose revolver ever released (the Colt Detective Special had been out for over two decades beforehand), it was arguably the gun that made the snub nose revolver iconic and popular with civilians.

The success of the J-Frame has prompted Smith & Wesson to release several variants. All variants feature a standard capacity of five rounds either in .38 Special or .357 Magnum and feature a cylinder release on the side that must be pushed forward (rather than down on Ruger models), to release the cylinder.

Here are the basic types of Smith & Wesson J-Frame revolvers currently offered and the features of each one:

  • Model 36 – Original J-Frame, still in production
  • Model 642/442 – hammerless .38 Special J-frame; 642 is stainless, and 442 is black
  • Model 637 – hammered version of the 642
  • Model 60 – .357 Magnum version of the Model 36
  • Model 640 – hammerless version of the Model 60
  • M&P Bodyguard – polymer-framed, hammerless J-Frame with Crimson Trace laser sight

TAURUS 85

The Taurus 85 is essentially a cheaper clone of the Smith & Wesson J-Frame series, but that doesn’t make it poor quality. If you desire a concealed carry on a budget, you’ll want to give the Taurus 85 a hard look. On the outside, the Model 85 resembles a J-Frame clear and through. Like the J-Frame, it features a five-shot cylinder with a cylinder release that must be pressed forward.

But an interesting feature of the 85 is the option to remove the hammer to create a ‘hammerless model.’  Simply twist the hammer to the side, and you will then be able to remove it from the gun. It’s a neat feature for a revolver and one that gives you the option of having either a hammered or ‘hammerless’ revolver without having to buy one of each.

The Model 85 is offered as a blued model or in stainless steel. As with all Taurus guns, it comes equipped with Taurus’s Trademark Security System: insert a key that comes with the gun into a keyhole behind the hammer, twist it, and the gun will be rendered inoperable. The security system you some peace of mind if you store the 85 in your house and have small children running around.

TAURUS JUDGE PUBLIC DEFENDER POLYMER REVOLVER

Another interesting concealed carry revolver from Taurus is the Judge Public Defender Polymer Revolver. This is the famous (or infamous) Taurus Judge .410/.45 LC that has been shrunk down for concealed carry. As the name suggests, it has a polymer-frame to reduce the weight.

The Public Defender offers you devastating self-defense capabilities in either chambering. A .45 Long Colt round offers far more power than the standard .38 Special or even the .357 Magnum. A self-defense buckshot load of .410 Bore will be near the equivalent of shooting three 9mm FMJ rounds at once.

It should be noted that the Public Defender is designed for extremely close-range defensive use only. To this end, it may be more suited as an anti-carjacking gun rather than for concealed carry, but still, there’s something very comforting about having five shots of .410 buckshot on your person.

CONCLUSION

All in all, revolvers are old, but they’re not yet antiquated. They’ve been around for many years, and they will be around for many more years. While they have their pros and cons, it’s incredibly unlikely that a revolver will fail you in a self-defense situation. And that reliability is what matters the most for a concealed carry weapon. Any one of the five types of concealed carry revolvers we’ve gone over is a suitable choice for concealed carry and armed personal defense.



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Saturday, February 11, 2017

Baofeng Handy Talkie Meets GNU Radio

There was a time when just about every ham had a pricey VHF or UHF transceiver in their vehicle or on their belt. It was great to talk to friends while driving. You could even make phone calls from anywhere thanks to automatic phone patches. In 1980 cell phones were uncommon, so making a call from your car was sure to get attention.

Today, ham radio gear isn’t as pricey thanks to a flood of imports from companies like Baofeng, Jingtong, and Anytone. While a handheld transceiver is more of an impulse buy, you don’t hear as much chat and phone calls, thanks to the widespread adoption of cell phones. Maybe that’s why [Bastian] had bought a cheap Baofeng radio but never used it.

He was working on a traffic light project and wanted to send an RF signal when the light changes. He realized the Baofeng radio was cheap and cheerful solution. He only needed a way to have the PC generate an audio signal to feed the radio. His answer was to design a UDP packet to audio flow graph in GNU Radio. GNU Radio then feeds the Baofeng. The radio’s built-in VOX function handles transmit switching. You can see a video demonstration, below.

What we didn’t see is how he plans to demodulate the signal on the receiving end. Of course, you could do that with GNU Radio as well. You could also repurpose some ham packet radio software should you want more network-like connectivity. Don’t forget you need to be sure you have the right licenses in your locality for your desired frequency band. These radios will often transmit on a wide range of frequencies, so be careful.

This is a good example of how you can use GNU radio for more than just SDR. We’ve seen it used to generate test patterns, for example. If you want to try your hand at GNU Radio, we talked about how to get started with no special hardware.


Filed under: radio hacks

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Lucid Dreaming | Hiw long will it take??

Since buying laberges book and eveb weeks before it i have been devoting most my days to awareness and looking for dream cues thtought the day.
The question i have is.....hiw long roughly do u think it would take for what i do in the day to be what i do in my dreams? Everytime im out im checking for anything out of the ordinary and checking sentences and words twice.....i want that to happen natrually in my dreams but atm im still MR.Dont question anything when im in a dream. Thanks


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Thursday, February 9, 2017

Tactical Pens

by Ryan

The best items for your everyday carry kit are items that are hidden in plain sight.  Items that you can use in your everyday life allow you to expand your kit without having to keep that item concealed.  A tactical pen is simply a pen designed for uses other than writing.  It must be a functional writing tool, but tactical pens are typically designed for self-defense.  Even airlines will often let you carry your tactical pen.  They are great for stabbing at vulnerable points like the neck and eyes.  However, they also allow you to target pressure points for non-lethal force.

Why a Tactical Pen?

There are several reasons that a tactical pen could be a better option than other concealable weapons.

  • Multiple Functions – Unlike a handgun or knife, a pen can be used for several different every day and survival purposes. When building any survival kit, multifunction tools allow you to keep the kit as small as possible.
  • Non-threatening – If you are going to be attacked, it can often be beneficial to appear unarmed. Guns or knives must be hidden to accomplish this.  If a gun or knife is seen, an assailant will often disarm you immediately.  With a tactical pen, you are hiding your weapon in plain sight.  An attacker will rarely confiscate a tactical pen.
  • Cannot Be Used Against You – One of the most dangerous aspects of carrying a gun or knife is that your attacker can use it against you. It takes little skill or experience for an attacker to injure or kill you with conventional weapons.  However, an attacker will rarely have the skill to use a tactical pen against you.  In fact, in most cases they will be more inclined to use their bare hands.
  • Element of Surprise – Many would say that your greatest advantage in a physical confrontation is the element of surprise. A weapon that does not appear to be a weapon is an excellent way to gain this advantage.
  • Non-lethal – In most cases a strike from a tactical pen will disable an attacker without doing any permanent damage. This is preferable in most situations.
  • Easy to Conceal – A tactical pen is much easier to hide in your pocket than other weapons. Most knives and guns must have a sheath or holster specifically designed for concealment.
  • Inexpensive – Most tactical pens are much less expensive than a gun or knife.

How to Choose a Tactical Pen

When choosing a tactical pen, there are several variables to consider.  Most people only own one tactical pen, so it is important that you pick the right one.  Here are some points to think about when choosing your pen:

Material – Tactical pens are typically made of one solid piece of metal.  Unlike a normal pen, they are designed to take an impact without bending or breaking.  Most are made with aircraft grade aluminum, but some are even made from titanium.  The strength of your pen will be based on the material type and design.

Grip – With a pen being small and cylindrical, is could easily slip out of your hand after impact.  A good tactical pen will have design elements to prevent it from slipping.  Some have ridges designed to fall in between your fingers for a better grip, while others are tapered in the middle and fatter on the ends.  Ideally, you want some sort of design element to improve your grip.

Appearance – If a tactical pen looks too different from a normal pen, it defeats the purpose.  You want it to completely blend in.  If it is obviously a weapon or tool, other people are that much more likely to try to take it from you.

Function – Any tactical pen should have a sharp point for stabbing, but some are so much more.  These days you can buy tactical pens with glass breakers, fire starters, whistles, and styluses.  Some even have flashlights built in to the pen.  The newer models have DNA catchers to allow police to identify your attacker after the attack is over.  The more functions your tactical pen can cover, the fewer items you need in your EDC kit.

Here are a few quality models that you can consider purchasing:

How to Use a Tactical Pen

If you are attacked, there are specific points to target on the human body.  The tactical pen is not a knife or sword.  You cannot just swing it at an assailant and defend yourself.  You have to be surgical.  If you hit the right points, you will easily disable your attacker.

Remember that your goal is simply to get away from your attacker.  You do not want to use lethal force if you can avoid it, but you also do not want to give your attacker a chance to recover and hurt you.  The key to this strategy is multiple strikes.  When you find a point of impact, hit it several times before you back off and try to escape. This will ensure that your attacker stays down.

Here are some points to target on the human body:

Hands – Hitting an attacker in the palm, knuckles, or back of the hand is very painful.  Often an attacker will grab your arm or shoulder, so their hand is readily available to strike.  In many cases you can break the smaller bones in the hand with just one strike.

Feet – If you find yourself on the ground at the feet of your attacker, this is an opportune time to strike.  Attackers assume you are not a threat when you are on the ground, so this gives you the element of surprise.  Striking the feet of your attacker will likely not break the skin, but it might break bones.  In addition, the natural reaction to this type of injury is for the attacker to drop to the ground.  This gives you an ideal opportunity to flee.

Knees – The knees are another vulnerable part of the leg that will drop a man to the ground.  If you stab at the front or back of the knees, it will be very painful.  In addition, there are tendons and ligaments that can be damaged.  This would keep your attacker from following as you run.

Thighs – The thighs are meaty and make a good target for a tactical pen.  A strike to the inside or the outside of the thigh is normally very painful.  However, there are also pressure points on the inside of the thigh that intensify the pain.

Groin – Any strike to the groin is painful, but with a tactical pen that pain is amplified.  This is an easy way to drop a man to his knees.  You will likely have enough time to get away after just one good strike.

Ribs – The ribs are always a vulnerable spot on a person.  There is little flesh to protect the bones and internal organs.  A good strike with a tactical pen can break ribs or cause internal bleeding.  It is incredibly painful as well.

Sternum – The breast plate is a spot that can easily be injured, but it adds a psychological edge as well.  Any time you strike areas near vital organs, the injured person is likely to fall to the ground and curl into the fetal position.  Until they realize exactly what has happened, they think their life is in danger.  This is a great time to run for it.

Arm pits – You would not think this is a prime area to target, but the arm pits have little protection and lots of nerve endings.  If you can catch your attacker with their arm up, hold it in place with your left hand and strike with your right.  It is very painful and should drop him to his knees.

Neck – The neck is one of the few places on the body where you can actually kill somebody with a tactical pen.  A strike to the base of the neck on the jugular vein could render an attacker unconscious, while a strike to the throat could cause death. If you have no other choice, this is the spot for which to aim.

Eyes – The eyes are always a great non-lethal spot to target.  Not only is a strike to the eyes painful, but it makes it virtually impossible for your attacker to follow you.

Head – Any strike to the head is going to be painful.  In addition, it can cause a great deal of bleeding.  This can blind your opponent or just make them more concerned with their own well-being.

Once you have selected your tactical pen, take the time to practice with it.  It is important that you are comfortable targeting these specific areas when the pressure is on.  It is one thing to know the areas to target, but another thing to be able to act swiftly when attacked.  Practicing in low lighting or with the sun in your eyes is also a good idea.

In addition to practicing where to strike, it is also important that you practice how to strike.  Tactical pens can be held like a sword for thrusting forward, or they can be held backhanded for a downward stabbing motion.  In most cases, sword style will give you more accuracy with your strikes.  Your attacker is also less likely to block this type of movement.  However, each tactical pen has a different shape and grip.  You may decide that your pen works best by holding it a different way.  It is important that you can stab a solid, heavy object without the pen slipping or dislodging.

Also, while practicing, remember that your best move is to stab repeatedly at one particular spot.  This means that your grip has to allow you to keep making the same motion without it slipping. In most cases, you do not want to stop making contact until your attacker is on the ground or disabled in some other way.  However, at that point it is best to run for help.  Legally speaking, you can be charged with assault if you keep striking after your assailant is obviously disabled. Do what is needed to get away and then make a run for it.  If you have hit the right spots, you should have no problem getting to safety.



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Wednesday, February 8, 2017

Repairing Crystal Earpieces

If you make crystal radios, you’ve probably got a few crystal earpieces. The name similarity is a bit coincidental. The crystal in a crystal radio was a rectifier (most often, these days, a germanium diode, which is, a type of crystal). The crystal in a crystal earpiece is a piezoelectric sound transducer.

Back in the 1960s, these were fairly common in cheap transistor radios and hearing aids. Their sound fidelity isn’t very good, but they are very sensitive and have a fairly high impedance, and that’s why they are good for crystal radios.

[Steve1001] had a few of these inexpensive earpieces that either didn’t work or had low sound output. He found the root cause was usually a simple problem and shares how to fix them without much trouble.

The root cause of failure in these is typically a poor connection on a piece of copper inside the device. [Steve1001] disassembles the unit with a knife, drills a new hole, and adds an additional wire. The process isn’t complicated but seeing how its done might keep you from tearing up one in the disassembly attempt.

Finding a local source for crystal earpieces might be tough, but piezo speakers are common on things that make beeps like motherboards or microwave ovens. Hackaday’s own [Steven Dufresne] shows how to convert one into a workable crystal earpiece in a video below. We’ve seen him make other homemade versions, too. Of course, big time crystal radios have amplifiers and can use conventional speakers and earphones.

 


Filed under: radio hacks, repair hacks

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Monday, February 6, 2017

Using SDR to Take Control of Your Home Security System

[Dan Englender] was working on implementing a home automation and security system, and while his house was teeming with sensors, they used a proprietary protocol which was not supported by the open source system he was trying to implement. The problem with home automation and security systems is the lack of standardization – or rather, the large number of (often incompatible) standards used to ensure consumers get tied in to one specific system. He has shared the result of his efforts at getting the two to talk to each other via his project decode345.

The result enabled him to receive signals from Honeywell’s 5800 series of wireless products and interface them with OpenHAB — a vendor and technology agnostic open source automation software. OpenHAB offers “bindings” that allow a wide variety of systems and hardware to be integrated. Unfortunately for [Dan], this exhaustive list does not yet include support for the (not very popular) 345MHz protocol used by the Honeywell 5800 system, hence his project.

The hardware used is plain vanilla – a cheap SDR dongle connected to a Raspberry Pi 3. His code, available on Github, along with OpenHAB, are lightweight enough to run comfortably on the Pi 3. The software side is a bit involved, and his blog post walks you through the code as well as the process he used to accomplish this. The Python- and C-based decoder captures the sensor signals. The sensors states are then sent to OpenHAB (in his case), but can probably be used with other systems too.

And since he wasn’t familiar with RF, SDR’s, Python, GNUradio and all the other bits that he used, he ended up in a lot of blind alleys. This is useful because his resulting blog is a nice walk through for anyone attempting something similar, providing handy tips and pointing out potential pitfalls. Despite trying a lot, he could not get gnuradio to demodulate the transmissions received from his sensors, so he rolled out his own decoder in Python, which makes for some interesting reading about how he reverse-engineered the protocol. Once over the hill, the final part of sending the received data via the Paho MQTT broker to OpenHAB was pretty simple.

If you have some suggestions on how he can optimise his code or use an embedded device such as the Texas CC1101 instead of the SDR, he’s all ears.


Filed under: radio hacks, security hacks

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Friday, February 3, 2017

Books You Should Read: Making A Transistor Radio

Top Five Best Double Stack .45s for SHTF

by Nicholas

The top three calibers that you should consider for an STHF sidearm are 9mm, .40 S&W, and .45 ACP simply because they are the most popular and easiest to find. If you decide that .45 ACP is the caliber you would like in your sidearm, it’s time to do your research on the best specific .45 pistol for you.

While the most famous .45 pistol of all is undoubtedly the 1911, it’s also an older design and has a limited magazine capacity of just seven to eight rounds. These days, there are double stacked .45 pistols that are simpler and hold more rounds. Let’s find out about the advantages to owning such a pistol and then discuss the top five best double stack .45 pistols on the market:

ADVANTAGES TO OWNING A DOUBLE STACK .45

While a double stack .45 pistol is easily going to be bigger than its 9mm counterparts, a .45 round on its own also creates a substantially bigger hole than a 9mm does. The tradeoff you get with a larger and heavier double stack .45 is an overall increase in firepower, which can be a big plus in a home defense or any self-defense scenario.

Double stack .45 pistols are admittedly not the best for concealed carry, especially for people who are shorter or smaller in overall stature. A .45 double stack pistol will instead be best suited to resting on your nightstand for home defense or in an OWB holster on your side as an SHTF sidearm.

All in all, the biggest advantage to owning a double stacked .45 pistol is how it offers greater stopping power than a 9mm or .40 caliber version of the same gun while coming close in overall round count. As an SHTF sidearm, a dependable .45 double stack pistol represents a solid choice.

Next, here are five of the top double stack .45 pistols currently available on the market, presented in alphabetical order:

FN FNX-45

Do fifteen rounds of .45 ACP sound appealing in a single magazine?  If it does, then you should point yourself in the direction of the FN FNX-45. With the highest standard magazine round count of any of the pistols on this list, the FNX should already be one of the .45 double stack pistols you consider. The more rounds in the pistol, the less frequent reloading needed, a major benefit if you have to defend your property or family against multiple attackers.

The FNX-45 is a hammer fired polymer-framed pistol that sports all the features you would expect on a pistol these days. The gun is double action, or single action fired. The first shot is double, and subsequent shots are in single, while you can flip down the decocking lever to return it to double action (which is safer for carrying). The FNX-45 also comes equipped with a loaded chamber indicator, night sights, an accessory rail, and four separate backstraps of different sizes.

As a whole, the FNX-45 is a large pistol, but also one that’s high-quality and loaded with a lot of firepower.

GLOCK 21

You probably expected to see a Glock on this list, and you were right. The Glock 21 has long been a mainstay in the .45 ACP world because it combines Glock’s simplicity and reliability with 13 rounds of .45 ACP in the magazine.

There are many reasons to own a Glock regardless of the model or caliber. Glock is currently the most popular gun manufacturer in the United States, meaning that spare magazines and accessories are virtually everywhere. The customization options are also endless. Also, Glock pistols are extraordinarily simple and reliable. It is for these reasons that their design has been copied by many other pistol manufacturers.

While the Glock 21 is big and bulky, it’s also not a pistol that’s going to fail you anytime soon. The third and fourth-generation models, which are both available, offers an accessory rail for adding lights or lasers, while the fourth generation gives you the option of replaceable back straps. For many, the Glock 21 represents the gold standard of .45 double stack pistols, and that alone secures it on an automatic place in this list.

HECKLER & KOCH HK45

Just like the USP pistol (still in production) that was made before it, the Heckler & Koch HK45 is a double action single action hammer fired pistol with a polymer frame. However, the HK45 also offers improved ergonomics over the USP. This combined with the fact that the USP-series may be discontinued should HK’s new pistols prove popular, is why the HK45 comes recommended first.

The HK45 has a ten-round magazine, which admittedly is lower than some of the other pistols on this list. Nonetheless, the HK45 is also the issued sidearm for many military and special forces units across the world, and that says a lot.

The ergonomics of the HK45 are like what they offer on their P30 and VP series of pistols. There’s an accessory rail on the front of the frame for adding lights and lasers, while the external frame mounted safety also acts as a decocker to make the weapon safe for carry after firing.

Heckler & Koch is known for making reliable and innovative firearms, and the HK45 is no exception. While accessories may not be nearly as common as Glock, the quality is equal if not even a little superior.

SIG SAUER P227

The SIG Sauer P227 is the only steel-framed .45 pistol on this list. For many years, its ancestor the P220 was the most successful DA .45 pistol on the market, and it remains popular today. But if there’s one thing that people complained about the P220, it’s that the magazine was single stack and only held eight rounds like a 1911. People had long been craving a double stacked version of the P220, and SIG Sauer responded with the P227.

While the P227 is wider than the P220, the standard magazine capacity holds ten rounds of .45 ACP instead of the P220’s eight rounds. A longer magazine with an extended base plate is also available for the P227 and increases the capacity to fourteen rounds. SIG also has installed the P227 with their new and improved E2 grips, which offer far better ergonomics over the grips they used on their previous models.

SIG Sauer is widely regarded as a premium gun manufacturer, and thus the P227 does not come cheap. You’ll have to plan on saving up nearly a grand to purchase a new P227, and while that may sound like a lot for a pistol, it’s an excellent value when you consider the superb craftsmanship that SIG Sauer provides. Plus, if you prefer to have a steel-framed pistol like a 1911 over a polymer-framed one, the P227 is easily going to be your best choice for a double stacked .45.

WALTHER PPQ 45

Last but certainly not least, we come to the newest pistol on this list, the Walther PPQ 45. The PPQ 45 holds the distinction as being the very first .45 pistol that Walther has ever produced. The story behind the PPQ 45 is also simple: Walther released the PPQ in 9mm and .40 S&W in 2011 and updated them with the M2 model (with an American-style push button magazine release) in 2013. A .22 LR version of the PPQ followed soon after, but for two years a .45 version was missing.

Finally, in late 2015, Walther released the PPQ 45 to the masses. You’ll notice right away that it’s bigger than its 9mm and .40 S&W brothers, but this is because the magazine must accommodate twelve rounds of .45 ACP.

While the PPQ 45 is young, reviews have still been overwhelmingly positive as it maintains the excellent ergonomics and superb trigger of its previous incarnations. The PPQ is marketed by Walther as having the smoothest and lightest trigger pull of any striker-fired pistol on the market. It’s up to you to decide if you agree with that, just know that the PPQ 45 has the same light trigger pull as the 9mm and .40 versions do.

Magazines and accessories can be difficult to find for the PPQ 45 since it’s so young, but as it becomes more popular this is likely to change. As it stands, Walther has had difficulty keeping the PPQ 45 on the shelves, which says a lot about it.

CONCLUSION

A double stack .45 pistol offers you a lot of firepower, but it’s also important that you make sure your money is spent wisely by purchasing a pistol that is reliable, accurate, and comes from a reputable manufacturer. Each of the five .45 pistols that we have gone over in this article fulfill that criterion perfectly, so any one of them represents a solid choice.



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