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Close up of the 432 MHz West receive cavity with an ATF-54143 preamp (OZ2OE design (measured NF = 0.3 dB, G = 26 dB) by Remco, blue box). East preamp is a CF739 (NF = 0.7 dB, G = 16 dB) made & designed by Ron DL3BPC/PA3BPC) (8/10)
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Close up of the 432 MHz West receive cavity with an ATF-54143 preamp (OZ2OE design (measured NF = 0.3 dB, G = 26 dB) by Remco, blue box). East preamp is a CF739 (NF = 0.7 dB, G = 16 dB) made & designed by Ron DL3BPC/PA3BPC) (8/10)