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Ham Radio Still Growing In the iStuff Age
vhfer writes "From NPR comes this story about old-school communications in the age of Twitter: 'Only a few years ago, blogs listed ham radio alongside 35 mm film and VHS tape as technologies slated to disappear. They were wrong. Nearly 700,000 Americans have ham radio licenses — up 60 percent from 1981, a generation ago. And the number is growing.' The article goes on to say that while there's plenty of 60-plus year old hams, there's also a growing contingent of teens. I just met a 14-year-old, licensed in 2009. Getting rid of the Morse Code requirement sure helped in that regard. So does the fact that the test questions (and the answers) are freely available, legally, on the Internet. Study, take the test, hang the license certificate on the wall. Your geek cred gets an immediate boost. And who knows? Maybe the next time there's a Haiti-earthquake-sized disaster, you'll be one of the thousands of ham volunteers who provided the only communications in/out of Haiti for weeks following the quake, not to mention all of the tactical comms the country had for nearly a month."
Talk with people around the world by bouncing signals off the moon
On "HF" or shortwave radio, you can talk to people around the world with 100watts of RF power. 100w is probably 1/3 or less of the power used to run your desktop computer.
It's probably one of the geekiest of the geek hobbies. You can play with electronics and build and repair radios. You can interface radios with computers and send and receive messages over radio. You can play with RF and antenna theory, flexing those math muscles to enhance your signal.
You get to talk without infrastructure
Cool people from around the world to talk with, and you never know who you're going to talk to next. Kind of like fishing
The draw depends upon the person. Many hams are drawn to the hobby by building their own equipment and/or antennas. There's a lot of math and theory that goes into building transmitters and creating good antenna designs. Not to mention, the pride of breaking through a pile of amateurs wanting to talk to someone in a foreign country and mentioning that you are using only 100 watts into your antenna that is a "homebrew 7 element beam at 50 feet".
Some modes in amateur radio require above average skills that the test doesn't cover; things like moonbounce, long distance microwave or satellites (hams have their own low-earth orbit satellites).
There's also the computer aspect of it. Hams have developed their own digital modes that use very low power and require DSP techniques to use, as well as software defined radios.
The hobby has a lot of interesting facets other than just talking to your friends on the radio. These are what keeps it going in an age when it's easier to just fire up Yahoo IM or use a cell phone.
Why ham radio?
I'm back into Ham Radio after a 20 year lapse.
I got my license back when you had to travel to an FCC office for the test and pass a 5, 13, or 20 word per minute listening test for morse-code.
It is a great nerd hobby, especially if you get into the do-it-yourself aspect, digital modes, or especially software defined radio.
I can buy a SoftRock kit (google it) for less than $15 that does the initial downconversion and lets me use my soundcard+computer to visualize a large chunk of a single band, decode CW (morse), various digital modes and SSB voice.
WSPR mode allows you to put your computer to work sending and decoding ultra low power (milliwatts) + ultra low bandwidth (seconds per bit) to communicate around the world on battery power.
Ham Radio definitely took a hit from the internet and cellphones providing cheap and easy worldwide communications. Removing the morse code proficiency requirement and volunteer examimations has helped bring it back somewhat (I never minded the morse part, but it was a stumbling block for some who where in all other respects a perfect fit for the hobby).
If I was just interested in communicationI probably would not have come back to the hobby, but the nerd part is just too fun.
I'm currently using a cheap Direct Digital Synthesis chip (google DDS) interfaced with an Atmel microcontroller (google Arduino) as the basis of a do-it-yourself low power transceiver for digital modes.
Nerd heaven...
73 - Paul - K0EET