- need to dig into atu icom connector operations to trigger ant from radio and radio from interface?
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A good description of the _START and _KEY signal interaction and status between the Icom Molex TUNER port, and the Icom AH4 and Icom compatible LDG autotuners, is on? page 6 and 7 of???
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FYI: With the inexpensive Chinese ATU-100 autotuners, you can interface to an Icom by connecting:?
?a 680 ohm resistor between the ATU-100 "B" header to Icom Tuner port _START pin, and?
?a 680 ohm resistor between the ATU-100 "A6" via to the Icom Tuner port _KEY pin, (plus connect +12v and GND).?
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A description of the ATAS-100 operation:??
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N0YWB