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Ham Radio 101 – Antenna Tuners
https://www.youtube.com/watch?v=hLrYm9tmrMgIf you’ve ever sung in the shower and hit a note where the sound seemed to amplify, you’ve experienced resonance. Every antenna has a particular frequency on which it is “resonant”. When we transmit on a radio frequency that is resonant with the antenna, very little power is lost and you are efficiently sending the…
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Amateur Radio Broadband
Can radio amateurs connect their computers across a wireless network? You bet. Firing data between ham stations is as old as the Morse Code. With the advent of Packet Radio Two popular ways to do it are D-RATS and HSMM-MESH. D-RATS is a lot like what Internet Relay Chat used to be. In its current iteration…
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The latest flavor of the Raspberry Pi tastes really, really good.
900MHz quad-core system-on-chip, 1GB of RAM, and still just $35.00. I use the Pi to interface with my D-Star DVAP dongle and it’s been darn near bulletproof. Eager to put this baby through her paces. Here’s more from Gizmodo.
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The Amateur Radio Parity Act of 2015
“The Amateur Radio Parity Act of 2015” — H.R.1301 — has been introduced in the US House of Representatives. The measure would direct the FCC to extend its rules relating to reasonable accommodation of Amateur Service communications to private land use restrictions. Learn more here.
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Ham Radio 101 – What the heck is a balun?
Baluns. We see em in a variety of amateur radio applications. They help turn a couple of long pieces of wire into a tool that a coaxial cable can feed with radio frequency energy. But what are they? Why do we need them? And how do they work? This 1985 article by W7EL takes the…