Collaborate Disseminate
While ham radio operators have been embracing digital mobile radio (DMR), the equipment is most often bought since — at least in early incarnations — it needs a proprietary CODEC …read more Continue reading Open Source DMR Radio
When the AMSAT-OSCAR 7 (AO-7) amateur radio satellite was launched in 1974, its expected lifespan was about five years. The plucky little satellite made it to 1981 when a battery …read more Continue reading AMSAT-OSCAR 7: the Ham Satellite That Refused to Die
[Tech Minds] built one of those cheap automatic antenna tuners you see everywhere — this one scaled up to 350 watt capability. The kit is mostly built, but you do …read more Continue reading What’s Wrong With This Antenna Tuner?
Making a multi-band amateur radio transceiver has always been a somewhat challenging project, and making one that also supported different modes would for many years have been of almost impossible …read more Continue reading A Ten Band SDR Transceiver For Homebrewers
We hear a lot about how ham radio isn’t what it used to be. But what was it like? Well, the ARRL’s film “The Ham’s Wide World” shows a snapshot …read more Continue reading Retrotectacular: Ham Radio As It Was
When the first artificial satellite, Sputnik, was put into orbit around Earth, anyone in the path of the satellite could receive the beeps transmitted by the satellite provided they had …read more Continue reading Communicating With Satellites Like It’s 1957
The moon is a popular target for ham radio operators to bounce signals since it’s fairly large and follows a predictable path. There are some downsides, though; it’s not always …read more Continue reading Bouncing Signals off of Satellites Other than the Moon
Full disclosure: ham radio isn’t for everyone, and there are many different facets to it. What appeals to one person might bore another to death. One area of ham radio …read more Continue reading No Ham License? Listen Anyway in Your Browser
Although ham radio can be an engaging, rewarding hobby, it does have a certain reputation for being popular among those who would fit in well at gated Florida communities where …read more Continue reading Custom Firmware Adds Capabilities to Handie Talkie
If you were in Tunisia in October, you might have caught some of the Morse Code championships this year. If you didn’t make it, you could catch the BBC’s documentary …read more Continue reading The World Morse Code Championship