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...

2008 W2RE finished a 4 month antenna project that swapped out antennas and added antennas to maximize gain using HFTA. The new antennas and stacks will maximize gain with the guide of the HFTA (N6BV) software.

Terry, W0VB, describes his rural station for working EME, aurora and meteor weak signals on 2 meters using a Software Defined Radio (SDR) Flex Radio Systems SDR-1000. The video contains an aurora contact with VE3AK and also a tour of Terry's six Yagi array.

Terry, W0VB, describes his rural station for working EME, aurora and meteor weak signals on 2 meters using a Software Defined Radio (SDR) Flex Radio Systems SDR-1000. The video contains an aurora contact with VE3AK and also a tour of Terry's six Yagi array.

Rocky software decoding BPSK31 on 40m from Sofrock TX/RX v6.1. Improved video quality.

Best viewed in high quality. Burt, K1OIK reviews the Flex 5000A Software Defined amateur radio.

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...

US War department movie about the SCR-694

Radio at war - RCA movie 1944

This is a one valve [tube] radio that believe it or not I constructed 48 years ago. It remained lost but was discovered again during a recent house move. The valve used is a battery R.F. pentode dating from around 1948 on a B7G base. The type number is DF91 or the American equivalent, the 1T4....