CQ

A-very-special-man

What is Hellschreiber. Hellschreiber is a German name, meaning "bright writing", or "clear writing". Hellschreiber is anything but a new mode. It was first patented in 1929 which makes it the oldest machine generated data transmission mode used in amateur radio. To put this in perspective, SSB...

The manufacture of thermionic (radio) valves part 3

The manufacture of thermionic (radio) valves part 2

The manufacture of thermionic (radio) valves part 1

Operating my station remotely. I use three pieces of software. First is TRX-Manager to control the radio. See my video on TRX-Manager. Second, remote desktop software. This allows me to control the radio computer from a remote computer. I use Logmein.com free program to manage and setup the...

Experimental receiver for VLF. I received electromagnetic (radio) signals between 14 and 22 KHz with a capacitor of 4,7 NF over the showed coil. The schematic is identical to that of the storm detector IV (with the 6088 Tube), the coil is differently constructed. There is one more transistor...

We’re back with the first episode from our new set. This month Jim runs a few benchmarks to determine if the Apple MacIntel is ready for prime time. IPTV show producers get ready… George hacks the Radio Shack Lavalier Microphone (#33-3013) to add phantom power and better performance....

It’s the Field Day Special! Join us as we visit with the Jackson Amateur Radio Club and learn all about Field Day. Plus we’ve got two unique AmateurLogic spins on Field Day… Jim’s poolside station set up is educational and entertaining. George’s station uses a unique power...