Author: Johnson Francis

Near Vertical Incidence Skywave (NVIS) Propagation Near Vertical Incidence Skywave (NVIS) Propagation is useful for medium range communications in amateur radio especially in hilly terrain, forest region and

Troubleshooting Moxon Yagi Part 1 One of my friends told me that it is easy to make Yagi antenna or for that matter any antenna, but the toughest

Testing the Moxon Yagi for Amateur Radio Satellite Contacts Recently I had homebrewed a Moxon Yagi for improving my setup for working amateur radio satellites. As I do

Dual Band Moxon Yagi – Part 3 It was raining heavily here for quite a few days. So there was no chance of testing the dual band Moxon

How to Submit SSTV Images to ARISS SSTV Image Archive As we are preparing for the SSTV (Slow Scan Television) image transmission event from International Space Station starting

How to Submit Data to AMSAT Live OSCAR Satellite Status Page AMSAT Live OSCAR Satellite Status Page is quite useful for amateur radio satellite operators to know the

How to Receive SSTV Images From International Space Station SSTV or Slow Scan Television is a mode of sending still pictures by amateur radio operators. Unlike analog broadcast

Homebrewing My QSL Card! When I returned to Amateur Radio after a break of almost a decade, my old bundle of QSL cards are no longer traceable. Moreover

Homebrewing Dual Band Moxon Yagi – Part 2 Came back to work on dual band Moxon Yagi. I had finished cutting the 3/8 inch aluminium pipes and shaping

Homebrewing Dual Band Moxon Yagi for LEO Satellite Operations I have been using a vertical omnidirectional VHF antenna for working through the voice transponders of Low Earth Orbit