Have you ever wondered what’s in the radio waves zipping invisibly around you every day? Software-defined radio (SDR) is a great tool to explore radio signals using a computer and inexpensive radio tuner. With SDR you can examime many radio signals such as FM radio, television, emergency & weather radio, citizen band (CB), and much more. Although dedicated SDR hardware like…
DetailsOne of the most enjoyable portable activities that you can do with the family or alone is using a kite-borne antenna. I have used kites to hold up antennas all over the World from Antarctica to Chile to Jordan and the UK. A key factor in successful kite operating is selecting the right sort and…
DetailsWorking on 40m to 10m band Maximum impedance on 40m: 2K, above 30m:4K Working with power of 20W QRP manual tuner for long wire QRP power meter QRP SWR meter Clear meter display No battery needed Price: Kit version $69 Assembled version $89 Link
DetailsIntroduction: This is an Arduino-based rotator interface that interfaces a computer to a rotator or rotator controller, emulating the Yaesu GS-232A/B and Easycom protocols which are supported by a myriad of logging, contest, and control programs. It can be easily interfaced with commercial rotator control units. With the addition of a proper capacity power supply…
DetailsRPi’ YU5R Rotator Software is for Remote Controlled the Antennas over the ethernet in the Resava Valley Contest Club YU5R, used the Rasberry Pi and Linux Operating System, Apache server and PHP. You can connect various antenna rotator controlers such as the Yaesu GS-232, LVB Tracker www.g6lvb.com/articles/lvbtracker/, Fox Delta ST2 – Satelte Tracking Interface www.foxdelta.com/products/st2-rs232.htm…
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