would like to wire up an adaptor to work with Flex 1500. The only button on the mic is the PTT. My understanding is the resister was added on the MD2 to increase auido level so it might not be necessary when connected to the Flex 1500.
The Elecraft MD2 pin out is: Flex 1500 pin out:
1=AF (5.6K resister to 5V) 1=N.C.
4=N.C. 4=Mic(-) Mic ground?
5=N.C. 5=Mic (+)
7=GND 7=Chassis Ground (PTT GND)
8=GND (PTT GND) 8=N.C
Would the correct wiring be?
1=AF (5.6K resister to 5V) 5=Mic (+)
8=GND (PTT GND) 7=Chassis Ground (PTT GND)
7=GND 4=Mic (-) Mic ground?
Im worried about the resister applying voltage to pin 5 on the Flex.
I would appreciate any input.