聴き比べ 2013 WW CW 7MHz
2013 WW Test 7MHz CW で聞き比べ。 ICOM IC-775DSP(Inrad Roofing Filter) Drake R-4C (Sherwood mods.) Collins 75S-3 Kenwood TS-940S (AGC mod.)
2013 WW Test 7MHz CW で聞き比べ。 ICOM IC-775DSP(Inrad Roofing Filter) Drake R-4C (Sherwood mods.) Collins 75S-3 Kenwood TS-940S (AGC mod.)