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Published on Mar 27, 2011
Checking a classic Yaesu FRG-7 in voice mode and digital modes on 20m band. I used for digital modes (in this video you can see bpsk31 and bpsk125) a simple homemade adapter with a trasformer to avoid ground loops and a pot to control soung level to USB soud card, two 1n1418 diodes have been used to prevent high voltage level and damage the sound card.