This rugged power supply is based on the popular LM338 3-pin voltage regulator. The LM338 is capable of supplying 5 A over an output voltage range of 1.2 V to 32 V with all standard protections like ...
The article that appeared in this magazine and in EDN last year about ham radio in the 21st century generated a lot of interest and a lot of questions about various aspects of the hobby. This article ...
As popular as the venerable Yaesu FT-817 transceiver might be with amateur radio operators, it’s not without its flaws, particularly in the user interface department. [Andy (G7UHN)] is painfully ...
Well before the days of the tweet and the status update, people communicated with each other over sweeping distances by quite literally harnessing the earth's magnetic field to send messages via radio ...
During the 2024 holiday season, amateur radio operators were treated to a unique gift from the International Space Station (ISS): a slow-scan television (SSTV) image of NASA astronauts Sunita Williams ...
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