80m 1:1 choke balun

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80m 1:1 balun 2x FT240-52

80m 1:1 Choke balun for dipoles and verticals Suitable for: 80m full size dipole 80m Inverted L 80m Vertical Choke balun optimised for 80m band My first experiment bulding a 1:1 balun for 80m using 52 mix toroid cores. Common Mode Current has a loss of more than 50dB at 3.6 Mhz. Measurement has been … Read more

RSGB 80m CC DATA

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80m CC data IC-7300 waterfall

RSGB 80m CC DATA RTTY and PSK31 contest RSGB 80m CC DATA contests are the busiest events of the RSGB weekly calendar. If you like contesting on 80m don’t miss this series. NON-UK stations welcome. Look  at my waterfall with a full size dipole at 12m above the ground level. RSGB 3.5MHz Club Championship Contests … Read more