RX antenna - K9AY loops switch with FIXED Rload

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!!TRANSFORMERS winding - very important thing! ** for 50 ohm coax feed line : 2 turns on primar (coax) and 6 turns on secondar side (loop) ** for 75 ohm coax feed line : 2 turns on primar (coax) and 5 turns on secondar side (loop) - In version 2.3 and higher, you can select Coax impedance by jumper JP3. - Transformer should have 5 + 1 turns. [https://remoteqth.com/img/ZAW-WIKI/trafo/transformer_winding_5-1_850.jpg|noborder] [https://remoteqth.com/img/ZAW-WIKI/K9AY_VAC/v2.3/2.jpg|noborder]
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