Software defined radio...FLEX...I would like to try one out for a bit...
09/365 Antena de radio-amator amator :)
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The Ten Cent Modification You Can Do to Double Your Radio’s Range
Anonymous; #5500 'Skysensor' Shortwave Radio, 1970s.
Sienna Kit Transceiver
Image titled Build Several Easy Antennas for Amateur Radio Step 2
Radialva Super-Groom by kitchener.lord, via Flickr
HF Radio With 17AH Battery QRP By N6VOA email@example.com
Mobile Ham Radio Antennas