Hi Andy,
You should have? 8 volts tx on UHF, pin 1 of J4007???
? 7.79VYou should have some voltage, less than 8, on Pin 2 of the module.??
3.66VYou should have 13.8 on pin 3 of the module, and RF out on pin 4. Check with handheld at varying distance/without antenna to see if it is amplifying.?
13.67 on pin 3? Check what voltages you have on base and collector of final transistor, Q4006. Should be around 0.65 on base SSB tx, and 13.8 on collector??
0.725V on the base, 13.67 on the collector in both TX and RX
no current between the jumper on TX. Can't detect anything from Q4001 other than the signal is full bars on the HT with no antenna connected.
I'm thinking maybe Q4006 is bad??
Max
