After 2 hours of bush whacking our way up a steep slope through scrub oak and dangerous loose rock my goats and I reached the south summit. Exhausted we made our way to the north summit where I had stashed a battery but spent the next 45 minutes looking for it! Once found we put up a sloper for...

Une autre très belle réalisation et présentation de l'activité radioamateurs et les voyages, réalisée par F8ARR, Bravo et Merci

Start: 2008/08 Finish: 2009/03 Long time for a small Tower ;)

I recently visited Lyme Regis UK. Like all good hams I took along my wireless kit. I setup my FT-817 and MP-1 vertical antenna and worked some PSK-31 DX. I shot this with my Canon SD750 digital still camera using the video mode. It worked pretty good. Several times I had to empty the memory...

PSK31 QSO on 40m using Digipan v20 Live video of part of a QSO on 40m using just 10 Watts at each end 100% copy over distances of c.1000Km is normal. First the complete GUI with the Multi QSO panel showing other QSO's. Then for clarity on YouTube a closer view.

The X-Band microwave motion detector was moved to 10.25GHz in Part 1, and we explored the diode output in part 2. In part 3, we examine the pulse width and pulse repetition rate with the oscilloscope, and draw a conclusion about the diode modulation.

The 211 Transmitting Tube is a high-power vacuum tube. Because of the power this tube requires general tube testers are not able t The 211 Transmitting Tube is a high-power vacuum tube. Because of the power this tube requires general tube testers are not able to interrogate this tube. I have...

Cool girl

This is a video of the Lindsay/Gingery coil winder that I built a ways back. It makes nice universal wound coils as well as solenoids. It is basically the Morris coil winder that was popular in the early years of radio.

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...