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Sunday, November 10, 2013

A movie short about Radio Hams, circa 1939

Taken from the description on Youtube:

This little vintage film, a rather more serious film than many of Pete Smith's other presentations, takes a look at how ham radios can become priceless aids during emergencies. The two stories shown, one dealing with the sudden illness of noted movie Cameraman Clyde de Vinna (W6OJ), the other with a missing plane where the ham operator (Wilbur Crane, unknown callsign) and the pilot of the search craft ended up getting killed after running out of fuel searching for another missing plane over the Atlantic, are bookended by a humorous look at a typical three-generation family's fascination with their ham radio. 
  

BTW: Are they tapping out "BS" in Morse Code at the 33-seconds mark?


Sunday, September 22, 2013

Wayne Green, W2NSD "Never Say Die" is now dead

I just found out Wayne Green passed away recently. He was 91 years of age. You may recall I posted about an "exchange" we had a while back about his old magazine, 73. It didn't go very well and my naivete had a bit to do with that.

While I admitted I was never fond of him, I will admit he was a character. He was a guest on Art Bell's old syndicated overnight radio show "Coast to Coast" (now hosted by George Noory) before Bell "retired" and recently popped up on SiriusXM with a new show starting last week called "Dark Matter". He did have a knack for keeping ahead of the curve on computers and packet radio and the age-old philosophy of building your equipment from the ground up. He also had some outrageous opinions about the paranormal and supernatural, and about technologies that are currently in the realm of science fiction, but moving closer to science fact.

He was a visionary, to say the least.

Sunday, September 8, 2013

CB is now ham radio?

Velveeta made a commercial for their Shells N' Cheese product and it features "that guy that's got a ham radio in his basement", except the radios it features are CB radios! See for yourself:


At the end of the 15-second spot there's a radio to the lower left that looks like a Yaesu / Vertex radio (maybe an 857-D) but it's too obscure and out of focus to be sure.

Nevertheless, it's nice to see the radio hobby/art/pasttime get a bit of publicity, even if it is 11 meters...

And the record, I had my fill of Mac and Cheese growing up, and I'll be damned if I eat another bowl of it. My kids on the other hand...

Monday, August 26, 2013

Off-topic: We get it, Miley!

Sorry to waste my ham radio aficionados' time, but I've been wanting to say this for a while now:

Dear Miley Cyrus:

WE GET IT! Okay? We realize you're not 15 years old anymore. We get it that you don't have that cheerful Disney attitude to your demeanor anymore, that you're not all fresh and pure as the wind-driven snow, and that you're not the same girl MY kids grew up with.

We get that you don't want to be stereotyped into that innocent, sweet girl persona, that you want the world to realize you are not Hannah Montana anymore. We even get that you're not even the mild-mannered Miley Stewart, the "real world" alter-ego of Montana.

We get it that you are not that teen who sold millions of dollars worth of Hannah Montana merchandise, like t-shirts, pajamas, backpacks, notebooks, jewelry, hair care products, toy microphones, shoes...the list goes on.  I should know, since I purchased much of this with my hard-earned money to satiate my kids' appetite for all things Miley.

So now we parents of 'tweens who were the fanbase for who you WERE must now work to try and discuss with our kids about who you now ARE and what you have apparently come to be. It's not like it's a big deal, really. I mean, you "retired" from Hannah what, 2 years ago? You've pretty much dropped off the radar in the life of a short-attention-spanned childhood and kids simply move on to the "next big thing" just as quick. I think this One Direction thing is the new fad, right? Well, they all but forgot until the VMA's this past Sunday.

Seriously? Is this what you want to be? Is this Miley all grown up? Fine, be whatever you want to be, sing what you want to sing, dress however you want to dress, even if it is like a prostitute. Like the saying goes, dress for the job you want...

If that's what you think will earn you metric tons of more money then by all means twerk away. And thanks for introducing the world to twerking, by the way. I had no idea what it was until this stunt. I shall add it to my lexicon and use it daily in talking to my friends, family, and co-workers. Maybe I'll ask random strangers if they've "twerked" lately. That ought to win friends and influence people.

You do realize that had it not been for the media coverage of this ridiculousness that is the VMAs (I think the last time I watched, Eddie Murphy hosted it) I, nor anyone else would have paid any attention to it. Every year we get treated to some outrageous horseshit that gets people to talk about it for all of a couple of days until the next big attention whore grabs the TMZ spotlight. Usually an over-hyped blowhard with a bad hairdo posing as an entertainer has to interrupt an acceptance speech or two female singers box tonsils on stage, but other than that the VMAs are just another award show no one gives two shits about until publicity stunts like this take center stage.

But I digress, you've moved on from all that teenage silliness. It's time to forget about all that money you raped earned from the kids who followed your every move and you've got to go for a new target audience. You're the millennial version of Opie Cunningham and you want the world to talk about you and only you, not Hannah! You've got to keep it "fresh and real" with your peers so you don't sink into...*gasp* irrelevancy!

Not that I'm surprised, really. For several weeks we've been hearing all about how you have a penchant for marijuana, shortened your hair and even changed the color to get away from that infernally red-headed "Hannah" persona. But this past Sunday should have eliminated any doubt that you want to be tied to that child-star personality from here on out. Yes, Miley, WE GET IT ALREADY!

If anything, it took away from hearing about Lady Gaga, or that N-Sync reunion, or whatever the hell Justin Bieber's doing. Or events going on in Syria for that matter.

Just put your tongue back in your mouth already for God's sake.

Monday, August 19, 2013

What a bargain!

If you act now, you can get your hands on this lovely Gonset GSB-201 linear amp on eBay.

It's clean, looks pretty much to be in working order. It comes from the estate of a ham, so the seller themselves have never used it personally. It has been powered on and the tubes work...or at least they light up. Typical output power can range from ~400W to 1500W depending on mode and the condition of the tubes (according to an article on eHam). 

And it can ALL be yours...for the bargain basement price of...drumroll please...$28,999.99!!! 

But wait! There's more!

FREE SHIPPING! DID I MENTION THAT?!?!?!?!?

Now hooooold the phone there, you crazy spendthrifts. Let's not rush through this too quick! Let's see what  $29k (minus a penny) could get you:
I'm not sure what medication this guy is on, but it must be awful good. The only answer he gives to all the questions posed are given the same answer. But then again, all of the questions are roughly the same: "Are you nuts?".

If someone actually pays $29k for this, perhaps he's not the crazy one after all.

Saturday, August 10, 2013

1965 Ham License Answers

Novice:
  1. Question #9: What method of frequency control is required to be used in the transmitter of a station licensed to the holder of a Novice Class License? The frequency must be crystal-controlled.
  2. Question #13: What is the maximum permissible percentage of modulation of an amateur radiotelephone station? 100%
  3. Question #17: What is the relationship between a fundamental frequency and its second harmonic; its third harmonic, etc.? The second harmonic is twice the frequency of the fundamental, the third harmonic is three times the fundamental frequency, and so on. A harmonic is always related to its fundamental frequency by an integral multiplier; i.e., 2, 3, 4, 5, 6, etc.
  4. Question #23: How is the actual power input to the tube or tubes supplying energy to the antenna of an amateur transmitter determined? The input power is determined by measuring the direct-current plate oltage and the d.c. plate current to the tubes in the final stage in the transmitter. The power input is equal to the plate voltage multiplied by the plate current in amperes.
  5. Question #27: What is meant by a "parasitic" oscillation? A parasitic oscillation is one not essential to the operation of the equipment and usually occurring on a frequency considerably removed from the operating frequency.
General:
  1. Question #1: Name the basic units of:
    • electrical resistance - ohm
    • inductance - henry
    • capacitance - farad
    • current - ampere
    • electromotive force or potential difference - volt (electromotive force is a fancy term for "voltage")
    • power - watt
    • energy - joule
    • quantity - coulomb
    • magneto-motive force - gilbert
    • frequency - cycles-per-second, or cycles (nowadays known as "hertz")
     
  2. Question #10: What is the principal reason for using a filter in a plate power-supply system? The principal reason for using a filter in a plate power-supply system is to smooth out the a.c. ripple component in the output and make it "pure d.c."
  3. Question #19: What undesirable effects may result from operation of an unneutralized triode r.f. amplifier in a transmitter? Self-oscillation may result, with consequent radiation on undesired frequencies, possibly outside an amateur band.
  4. Question #69: What is meant by a "doubler" stage? A vacuum-type circuit in which the output circuit is tuned to twice or doube the frequency of the input circuit.
  5. Question #71: What is the reciprocal of resistance? Conductance, measured in mhos ("ohms" spelled backwards)
  6. Question #106: What precaution should be taken to protect filter capacitors connected in series? Resistors having a value of approximately 100,000 ohms should be shunted across each capacitor to equalize the d.c. voltage drops and thus prevent breakdown of the individual capacitors.
Extra:
  1. Question #4: What factors determine the core losses in a transformer? Core losses are one of two types, hysteresis and eddy-current losses. Hysteresis losses vary with the type and volume of iron or steel used in the core and with the operating frequency and magnetic flux density. Eddy-current losses vary with the volume and resistance of the core material, the thickness of the laminations, and frequency and the flux density.
  2. Question #7: In a Class-C r.f. amplifier, what ratio of load impedance to dynamic plate impedance will give the greatest plate efficiency? The highest possible load impedance will give the greatest efficiency, since the ratio of the power in the load to power lost in the plate becomes larger as the ratio of load impedance is increased. However, under these conditions, the power output is relatively small.
  3. Question #12: During 100 percent sinusoidal amplitude modulation, what percentage of the average output power is in the sidebands? 33 1/3% The average power output would increase 50% with such modulation; i.e., a 100-watt unmodulated carrier output would rise to 150 watts. Sidebands carry the excess of 50 watts, which is 1/3 the total.
  4. Question #25: What are synchronizing pulses as used in television transmitters and receivers? Synchronizing pulses used in television transmitters and receivers are pulses of extremely short duration which ensure that trace lines across the face of the picture tube in the receiver are synchronized with the trace lines in the television camera.
  5. Question #34: What determines the operating frequency of a magnetron oscillator? Its dimensions and the electric and magnetic field intensities; also, the associated circuit constants.
  6. Question #46: If the conductors in a 2-wire r.f. transmission line are replaced by larger conductors, how is the surge impedance affected, assuming no change in the center-to-center spacing of the conductor? The surge impedance is lowered.
  7. Question #63: What is the purpose of the mosaic plate in a television camera? To what item of photographic equipment is it similar in function? To store an electrical image corresponding to the visual image focused upon it, for later scanning by an electron beam to translate the electrical image into a television signal. Its function is similar to that of the film in a photographic camera, which similarly stores the image for later development.
  8. Question #92: What are the "Baudot" and "Seven Unit" codes? How are they used? Both are used in teleprinter operation. Baudot used with synchronous printers, 7-unit with start-stop printers. Each transmitted character has assigned to it a fixed time interval divided into units, 5 for Baudot and 7 for 7-unit teletype. A particular character is distinguished by a unique combination of mark and space units in that particular codes being used in all cases.
  9. Question #120: What is the meaning of the term "frequency swing" in reference to frequency-modulation transmitters? The peak difference between the maximum and minimum values of the instantaneous frequency.
  10. Question #136: What is the ohms per volt of a voltmeter constructed of a 0-1 d.c. milliammeter and a suitable resistor which makes the full-scale reading of the meter 500 volts? 1000 ohms per volt.
  11. Question #181: What is meant by low-level modulation? That applied to an early or intermediate stage of a transmitter (instead of to the final amplifier) i.e., at a point where the power level is comparatively low.
  12. Question #204: State where antenna impedance is usually measured. At the point where the antenna is fed. The value so measured is frequently converted into an equivalent value at a current loop.
  13. Question #219: Define a "back-wave" and explain what causes it. A signal emitted during key-up conditions. In make-break keying, it may be caused by energy from unkeyed exciter stages leaking through a keyed amplifier (because of improper neutralizations, etc.) or by parasitic oscillation. In frequency-shift keying the "space" signal in the back-wave.

Friday, August 9, 2013

Could you pass the 1965 Ham License exam?

1965 ARRL FCC
License Manual
I was at an estate sale a couple of weeks back and came across a couple of books that got my attention, The Radio Amateur's License Manual and How to Become a Radio Amateur. Unfortunately I didn't get to find out the callsign of whoever it was that had the books.

The license manual covered all of the classes of licenses available at the time: Novice, Technician, General, Conditional (same as General but test taken by mail), Advanced (not available to new applicants), and Extra.


As I scoped out the book, I found some interesting rules that the FCC enforced at the time:
  • If you wanted to take the test or renew, you paid $4, and it was good for 5 years. If you changed your address, it was $2.
  • Callsigns must be transmitted at the beginning of each transmission, every 10 minutes, and at the end of each transmission (currently hams don't need to identify at the beginning).
  • Novices retained their callsigns for a year and must upgrade.
  • Hams violating FCC rules faced a $500 fine per day during which the offense occurs.
  • Logs were kept of each QSO and must show:
    •  Date & time of transmission  
    •  Signature of each operator
    •  Call of the station contacted
    • Power
    • Frequency
    • Emission type
    • Location
    • Message traffic handled
  • Hams had to notify the FCC Engineer-in-Charge if they intended to operate mobile longer than 48 hours.
  • If an applicant failed an exam, they had to wait 30 days to re-take the exam.
  • The book cost 50 cents, and included the FCC Part 97 rules and regulations.
The other manual
I bought
Some rules have obviously changed. 

What struck me even more was that many of the questions from the Novice/General/Extra questions were pretty tough. Even with my electronics education and background, it was amazing how intricate many of the questions were. Unlike today's question pools, the 1965 pool did not include multiple choice answers with the wrong answers included, but the exams were multiple choice. It also wanted the reader to draw out certain circuits.

So here are some sample questions in the Novice, General, and Extra class exam pool. See how many you can answer. I'll post the correct answers in 24 hours:

Novice:
  1. Question #9: What method of frequency control is required to be used in the transmitter of a station licensed to the holder of a Novice Class License?
  2. Question #13: What is the maximum permissible percentage of modulation of an amateur radiotelephone station?
  3. Question #17: What is the relationship between a fundamental frequency and its second harmonic; its third harmonic, etc.?
  4. Question #23: How is the actual power input to the tube or tubes supplying energy to the antenna of an amateur transmitter determined?
  5. Question #27: What is meant by a "parasitic" oscillation?
General:
  1. Question #1: Name the basic units of:
    • electrical resistance
    • inductance
    • capacitance
    • current
    • electromotive force or potential difference
    • power
    • energy
    • quantity
    • magneto-motive force
    • frequency
     
  2. Question #10: What is the principal reason for using a filter in a plate power-supply system?
  3. Question #19: What undesirable effects may result from operation of an unneutralized triode r.f. amplifier in a transmitter?
  4. Question #69: What is meant by a "doubler" stage?
  5. Question #71: What is the reciprocal of resistance?
  6. Question #106: What precaution should be taken to protect filter capacitors connected in series?
Extra:
  1. Question #4: What factors determine the core losses in a transformer?
  2. Question #7: In a Class-C r.f. amplifier, what ratio of load impedance to dynamic plate impedance will give the greatest plate efficiency?
  3. Question #12: During 100 percent sinusoidal amplitude modulation, what percentage of the average output power is in the sidebands?
  4. Question #25: What are synchronizing pulses as used in television transmitters and receivers?
  5. Question #34: What determines the operating frequency of a magnetron oscillator?
  6. Question #46: If the conductors in a 2-wire r.f. transmission line are replaced by larger conductors, how is the surge impedance affected, assuming no change in the center-to-center spacing of the conductor?
  7. Question #63: What is the purpose of the mosaic plate in a television camera? To what item of photographic equipment is it similar in function?
  8. Question #92: What are the "Baudot" and "Seven Unit" codes? How are they used?
  9. Question #120: What is the meaning of the term "frequency swing" in reference to frequency-modulation transmitters?
  10. Question #136: What is the ohms per volt of a voltmeter constructed of a 0-1 d.c. milliammeter and a suitable resistor which makes the full-scale reading of the meter 500 volts?
  11. Question #181: What is meant by low-level modulation?
  12. Question #204: State where antenna impedance is usually measured.
  13. Question #219: Define a "back-wave" and explain what causes it.

Wednesday, August 7, 2013

A "typical" request for directions...

I have to wonder if this type of conversation happens on your area's repeaters (the exact conversation and names have been altered to protect the guilty):
Ham1: "Hey guys, I'm from out-of-town and need directions to . I'm currently at Can anyone tell me how best to get there?"

Ham2: "Sure thing, take the interstate to the next exit, follow the highway 7 miles, and then hang a left at the stop light."

Ham3: "Yeah, but if he takes the bypass he'll cut about 7 minutes off his commute, then go to exit 9, hang a right, and he's there by the Post Office."

Ham4: "I was just 'copying the mail' and wanted to let you know that the Post Office is now a Dollar General store, and the bypass has construction so 's directions are better, at least until December when they finish the construction."

Ham5: "Hey, I think your radio's got too much static, you need to boost yer power or move to a better location."

Ham6: "I just checked with Google Maps and it says there's at least 3 stop lights before you get to the Post Office to make the turn."

Ham4: "I just said the Post Office is no longer there, it's a Dollar General!"

Ham5: "I still think needs to move his radio, still a lotta static."

Ham3: "Didn't used to work for that Post Office branch some years ago?"

Ham6: "No you're thinking of who worked at the one by the Walmart near downtown."

Ham3: "Well, he worked for that Post Office branch too, didn't he?"

Ham6: I dunno about that. What were we talking about again?"

Ham4: "I was trying to tell you that the Post Office is now a Dollar General, and the Walmart is near the mall, not downtown."

Ham5: "Your signal's not getting better try a different radio if you have one."

Ham2 & Ham4 doubling: "This is clear!"

Ham1: "Thanks, guys, but my GPS got me there 5 minutes ago and you all quick-keyed so fast I couldn't get a word in edge-wise, and by the way it's at the 2nd stop light past the McDonald's. There's no Walmart, Dollar General, or Post Office in sight. I think you all are off your rockers. Thanks for the comedy routine, this is clear."

Ham5: "I heard that same static on his radio as I did , and in fact several of you had that noisy signal, so maybe it's the repeater. Can't be my radio."

Monday, June 3, 2013

Storm chasing is NOT an extreme sport!

Every spring we see the midwest get hammered with severe weather, and every spring we get treated to a fresh batch of videos depicting tornadoes in action and we see some incredible footage. The people that bring us the memorable videos are sometimes just everyday people who happen to be in the right place at the right time, while other times the videos are provided by storm chasers, a unique breed of animal that goes out on the roadways to look for the bad weather. 

Doppler on Wheels radar truck
There are many different kinds of storm chasers. Some are researchers, driving vehicles (like the doppler-on-wheels radar trucks) that search for tornadic weather to get up close with data collection methods for helping to better predict when and where tornadoes strike.

There are the spotters, such as ham radio operators who coordinate with local National Weather Service offices and/or TV/Radio stations in order to tell the public what's on the ground. Some chasers do it for the public service, while others are in it for photographic means, trying to capture the tornadoes on film or video in order to publish, or even sell the rights to news outlets, for fun and/or profit.

Then there are the "daredevils". The ones who see all the action on TV or on YouTube or even in theaters and wanting to get a piece of the action. The age of smartphones and camcorders have made many ordinary citizens amateur photographers and videographers and a lot of the "glamor" of storm chasing has turned rank amateurs into a risk, not just to themselves, but to the so-called "professionals" who are trying to do legitimate research and weather spotting.

I should know, because I used to chase storms, and I classified myself as a daredevil. Back in the early 90's I would go out and chase storms all across east Tennessee. This was before camcorders became affordable, before Twister, before cell phones, before the internet as we know it, and even before I became a ham. I was fascinated by weather (still am) and I just wanted to go out and see what it was like to encounter severe weather in the "safety" of my pickup truck. Yes, a pickup truck. I didn't think at the time about how dangerous it truly was, since we have hills and valleys, lots of trees, and the roads don't go North-South/East-West. I didn't know a damned thing about weather compared to what I know now, and I'm still considering myself a novice. I had no phone, no way to record, and no way to communicate what I was seeing to the rest of the world. And I put myself into some pretty scary situations.

After getting my ham ticket I started being the "roving reporter" on local repeaters. I didn't have spotter training, couldn't tell you what a wall cloud looked like, and I certainly didn't know when to quit while I was ahead. When I would check into a weather net as "stormchaser mobile", I can remember Rocky up at the National Weather Service office in Morristown openly sighing, as if to say "Aww geez, here we go again!".

But I got out of that habit. A couple of close calls too many, not to mention regular chastising by the ham operators at the NWS (and the meteorologists) directed me to stay off the highways and get behind the microphone of my ham radio and help the Weather Service by calling weather nets. I found that my calling a weather net was much more productive (and safer) than chasing. Although I still found myself behind the wheel every once in a while. Having kids broke me of that habit completely, however. I occasionally hear a ham out there chasing, and now I'm the one openly sighing and discouraging it whenever possible. Usually if I am mobile during severe weather, it's because I'm going to/from work.

El Reno, OK tornado 5/31/13
I've seen as many videos as possible of all the known tornadoes on film and video.  I owned several videos of tornadoes and had books and even a poster or two of them. I went and saw the movie Twister in the theater (and I hated it!) and started to wonder at what point would storm chasing begin to go "mainstream" and THE thing to do in order to get that dopamine thrill some adventure seekers crave.

I didn't have to wait long, as more and more chasers, inspired by movies like Twister and all the videos now turning up online and an the evening news, began chasing. Everywhere.

A few thousand dollars can get you on board.
People from all walks of life, from college kids to retirees began following severe storms all across Tornado Alley. Some were amateur radio operators with a weather interest, some college students studying meteorology, some were just fascinated with what they were seeing on TV and wanted to see it up close and personal. How could you not be tempted to chase? After all, we were seeing all kinds of tornadoes wreaking all kinds of havoc and almost all the videos were recorded from a safe distance or from a location where everyone recording survived the event. Then cell phones came with cameras, so pretty much anyone with a cell phone could record photos or video of tornadoes, so you didn't need to spend hundreds or thousands of dollars to get in on the action. With smartphone technology now you just need to have a car, a smartphone, and an idea of where to go to find the bad weather. Now, you don't need even that, just a few thousand dollars can get you a seat in a van and you can now take a tour with a group!

Now that pretty much anyone and everyone can chase, the roads are getting congested with storm chasers of all kinds. These additional chasers can congest roadways when residents are trying to flee the storms or emergency vehicles are trying to get to some people in need.

Last Friday's storms in Oklahoma and Missouri showed that tornadoes are still unpredictable and when even the so-called "experts" are put in harm's way, the novices can be in just as much danger, if not worse.

By now you've heard that a crew from the Weather Channel had their SUV caught in a tornado and it was tossed some 200 yards into a field after rolling over 6-7 times.

You can watch video of The Weather Channel's SUV getting tossed by the tornado here (or view the video below). You'll see the camera get tossed out of the vehicle and end up on its side, still recording, showing the SUV tumbling through a field several times. TWC meteorologist Mike Bettes and two photographers suffered some injuries. One of the photographers suffered broken bones.


As I was composing this I found out that one of the most respected (and conservative) chasers was killed, along with his son and a fellow crew member.

Tim Samaras WJ0G (right) with Carl Young of Twistex
Tim Samaras, callsign WJ0G, featured on Discovery Channel's Storm Chasers, his son Paul, and Twistex crewman Carl Young were killed when one of the many twisters during last Friday's outbreak struck their vehicle with them inside. Details are still sketchy as to what happened but it is believed the tornado they were tracking near El Reno, Oklahoma made an unexpected turn and came directly into their path.

Twistex was founded by Samaras and its purpose was to take research instruments and put them into the path of an approaching tornado, which would provide valuable data on the workings of a tornado. His death brings to the forefront the true dangers of these violent weather events. When respected meteorologists and researches can get injured, or even killed, imagine the danger to novice chasers and daredevils. Tornadoes don't discriminate when they go on their warpaths. And when it looks like we get a little bit ahead in our understanding of tornadoes, we find out all too abruptly that we still know very little about them. Tim was a pioneer in tornado research and has given a great deal in to learning more about them. His research has made predicting tornadoes more accurate and his research will be credited with saving lives for many years to come.

"Tornado Hunt 2013" SUV tossed 200 yards by tornado
I've had to change the title of this post 4 times to reflect the message I want to convey. When I look at the Weather Channel SUV, I see a car with an autowrap design that's makes it look like it's on a rock concert tour, with graphics you could slap on t-shirts and sell to paying fans when the "tour" comes into your town. Perhaps this type of business model enhances the perception that chasing tornadoes is "cool", like an extreme sport, enticing people to want to participate. Storm chasing shouldn't be an X-Games sport, nor should it be treated like one. It's a serious endeavor that can kill even the best of chasers. I hope and pray that we never hear of a van full of paying customers becoming the next fatalities.

My advice is simple, if you want to chase tornadoes, DON'T DO IT! There are enough people putting their lives on the line, and we don't need to congest the road with more. If you can't fight the urge, then go to school, get a degree in meteorology, team up with a respected team of researchers that chase responsibly, and you may be able to successfully chase tornadoes and live to tell the tale. But, as we have seen this past Friday, not even that is a guarantee you'll survive.

Wednesday, May 29, 2013

Storm chasers ride out EF-4 wedge tornado

It's not everyday you can tell your friends and family you rode out an EF-4 tornado and lived to tell about it. It's even rarer to do it in a vehicle.

But when that vehicle is specifically geared to intercept said tornadoes, it comes with the territory. But even this monster twister would make the bravest of chasers wonder what could possess someone to ride out this big of a tornado.

Sean Casey and TIV2 before (credit Herb Stein)
If you're a fan of the Discovery Channel show "Storm Chasers" you've no doubt heard about Sean Casey and his quest to film an IMAX movie from INSIDE a tornado. His now-infamous "Tornado Intercept Vehicle", or TIV for short, was designed for such a task. And last Monday, it was put to the ultimate test, as an EF-4 tornado came bearing down upon them and passed over their location in Smith County, KS. It was captured on video by his tag-team partner Brandon Ivey.

His 2nd generation vehicle, the 10-wheeled monolithic TIV2, was bigger, tougher, and heavier than its predecessor TIV1, and in my opinion had they been in TIV1, would not have fared as well. TIV2 is over 14,000 lbs, has bulletproof glass composed of polycarbonate sheets combined with tempered glass on the outside, and thick metal shielding around the entire frame that can withstand micro-sized missiles from penetrating the inside of the vehicle. It also has several rods that ram into the ground in order to anchor the TIV2 and prevent the high winds from moving the vehicle. The 1/8th inch-thick metal shielding extends to the ground, to allow air to pass over the TIV, preventing the wind from going underneath the TIV2 and sending it airborne.

The tornado that was captured provided some dramatic images, from a 1000-lb bale of hay passing from the rear, to metallic objects striking the windshield and creating sparks.

You can watch the video here (high-res version here), and note the sound is fluttery during the most intense part of the pass. If you look at the bottom of the polycarbonate windscreen, you'll note the vibrations are in sync with the fluttery sounds coming through the microphone, as the pressure around the vehicle is dropping and fluctuating as the twister passed over the TIV2.

It's currently unknown how fast the winds were, because their anemometer snapped off when sheet metal debris from a farm a half-mile away hit it, registering wind speeds of 150-174 MPH at the time. These winds speeds register as an EF3 to an EF-4 on NOAA's enhanced Fujita Scale.

Fortunately no deaths occurred with this tornado, but a couple of houses were damaged or destroyed and some cattle are reported missing. They didn't fly by the TIV2, however.

The TIV2 did its job but not without some mishaps. A couple of hatch doors blew open during the intercept and debris entered the TIV2 cabin. The IMAX mount also became dislodged and Sean had to take cover while filming. But, any intercept you can walk away from is a good intercept, no? Before and after pics of the TIV2 can be seen at Sean Casey's Facebook page.

You can track various stormchasers as they go after storms during severe weather season with the Discovery Channel's storm tracker page. Unfortunately Discovery Channel cancelled the show despite decent ratings and a lot of great drama footage of the tornadoes in action. I'm almost certain fellow tracker/TIV copycat Reed Timmer is screaming at the top of his lungs for not being the one to encounter the tornado congratulating Sean for his historic intercept. And somewhere in that TIV2, I'm sure Matt Hughes was along for the ride as well, RIP.

Stay safe everyone, and please, please please...DON'T TRY THIS AT HOME, OR ANYWHERE ELSE FOR THAT MATTER!

Thursday, May 2, 2013

My new ham radio "bling"

After my unexpected, less-than-friendly departure from the Pigeon Forge Titanic Special Event because of a lack of having my license upon my person, I made a photocopy and laminated it for my wallet (which soooooo many hams were soooooo polite to inform me of what a wallet-sized ham license looks like) so that this issue, should it ever occur again, will not prevent me from operating.

But I couldn't stop there. I needed to go deeper into being the smartass I can be.


I needed to make my license readily available so that I didn't have to go through the painstaking burden of reaching into my back pocket and pulling out the license. I needed something even more convenient.

Close up of my new necklace!
A coworker of mine has been making pendants using parts from a hobby store and clear acrylic, and one morning while we were talking about his latest creation (a OUIJA board) it dawned on me to have him attempt to do the same thing with my ham radio license. I obtained the parts needed, mainly the pendant, and he began work on the project. I sent him a scanned copy of my license and he was able to reduce it down to the dimensions of the pendant. 

Once he had it reduced, he took it to Walmart and had it printed on photo-quality paper. After snipping it down further, he positioned it and poured the acrylic atop it.

Quarter for scale
After a couple of days to set, he brought it in Wednesday morning me to look over. I couldn't be happier with it.

So now I not only have my official wallet-sized license to whip out on demand, I can also brandish this new piece of "bling" to amaze and impress. The wife and daughter like it and I'm going to have their licenses made into this as well. Amber, the little one, she wants one, too, and she's studying up already.

So next time before you ask me for my ham license, look around my neck for this new piece of hardware!

The next step? maybe something along the lines of Flavor Flav and his giant clock, perhaps?  YEEEEEEAAAAAHHH boyeeeeee!

And by the way, if you're interested in getting one of these using your license, let me know.