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Weird tuning of 4 sq for 160
My 4 sq did pretty well in the ARRL DX contest and also in CQ 160 SSB. But it was noisy. Perhaps because the elements were not tuned, with resonances from 1.78 to 1.84 MHz I decided to tune the elements to around 1.83. The impedances were: 42 Ohms for Read more