If 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…
Author: Scott Westerman
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…
An appreciation by Jason Feifer in Popular Mechanics.
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.
“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.
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…
Got one of those older generation BluRays or Flat Screens that requires a CAT 5 connection? No CAT 5 wiring in the house and your wifi router is not in a convenient location for a direct connect? Here’s an great way to extend your network without having to upgrade that…
One way that repeater systems with strong transmit capability can improve their “ears” is the installation of remote receiver locations throughout the coverage area. These are connected to the transmit site via a linking frequency using a highly directional yagi antenna. Technology at the repeater site scans for the strongest…
In Hutchinson, KS. I think a repeater at about the 1,400 foot level would be a good addition.
Petr, OK2CQR, created this useful Amateur Radio tool. As he notes, “This callbook provides all data for free and you will not have to log in to see any detail unlike other sites. It includes also XML access for logging programs. You can use everything from HamQTH as often as…