ICOM艾可慕Icom_mic_interfacing_with_non_Icom_TRX_AB4OJ

MICROPHONE CONNECTOR(Front panel view)0e1R1PIN NO,FUNCTIONDESCRIP4子k右1和KMain readbut AF output②+8.V DC outputMax.10 mAmicM(varies with [AFV[BAL])Farphone③Frequency upGround①Microphone input②GNDFrequency down.Ground throug(Microphone ground)Ct味Squelch open生OW'leel②.+8 V DC outputGND (PTTground)Squelch closedHIGH"level③Frequency up/down③PTTMain readout squelch switchCAUTION:DO NOT short pin 2 to groucan damage the internal 8.V regulator.R1,ch required if feoding eactrermic from +8VBackC1vequired if wic cloment isdynanicEloctret can also be td from Pin 1itonR1,C1wot needed,