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Loop on the ground, receive only antenna @TheArtofEngineering
RX Antenna LOG - Loop On the Ground by KK5JY 160m 80m 40m in PY2GTA
My 49:1 UNUN now rated at 100 WATTS. @TheArtofEngineering
QRP L-MATCH Antenna Tuner @TheArtofEngineering
DX Vertical L Antenna for 20m and 40m
HF Noise Mitigation Seminar by W7VO
T2FD Full coverage HF radio antenna B&W AC 3.5-30 salvage, rebuild, and testing of a classic antenna
Reducing RF Background Noise on your CB Radio
VK3YE/QRP/Portable video 1
Adding a tone/noise filter to any radio.
Design, construction and QSO of a super simple QRP transceiver.
The simplest BPSK DSSS Radio Beacon with SDR demodulation