Tower Installation

Tower Installation

yo9ph

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...

Tribute Video To Rex Who Passed Away Jan 2009

VP6DX Ducie Island DX´pedition reception in Patagonia South America from LU7YS station. Rig: YAESU FT1000D antenna Cushcraft X7 @ 13 meters feb 19 at 23:20 UTC

Telephone and telegraph from the Your Life work series - 1946 - Vocational Guidance Films, Inc.

Special event station from Fort McCalister Georgia working 20 mtrs on 3 Jan 09

1921-era spark gap transmitter - Movie from KB8WFH about his transmitter used by W8AGA

Schematic of the 4 tube radio, experimentally built in a way of the radio-pioneers (1910-1945). The radio acts as a cascade type receiver when the antenna coil has a high self-inductance, with lower self-inductances of the antenna coil you can put in a mixing process with the oscillator. Perhaps...