RX antenna - K9AY loops switch with remotly VARIABLE Rload

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!!Schematic diagram * [bigger schematic diagram Version 3.1|https://remoteqth.com/img/ZAW-WIKI/K9AY_VAC/sch3-1.png] - Schematic Version 3.1 [https://remoteqth.com/img/ZAW-WIKI/K9AY_VAC/sch3-1S.png|noborder] * Direction switching matrix table for DC control inputs ( apply +12V for logic 1 )[https://remoteqth.com/img/ZAW/k9ay++rc/vysvetlovaci/k9ay_DC_direction_matrix_850.jpg|noborder] * Direction switching matrix table for AC/DC voltages over the coax [https://remoteqth.com/img/ZAW/k9ay++rc/vysvetlovaci/k9ay_ACDC_direction_matrix_850.jpg|noborder]
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