RXTX v6.2 20/30m transmitting problem- Help!
- I am in the process of troubleshooting my recently completed kit. I
am using the DL6IAK IQ Generator for my input. I have a Delta 44
soundcard with the Softrock interface kit. With an input of 2.3 Vpp
at 5 KHz I get an output of only 200 mVpp. The output is connected
to a dummy load. I am testing on 20M.
My AC voltages are as follows(all are peak to peak):
Outputs of U1 & U2 at pin 7: 2.3V
Outputs of U3 at pins 7 & 9: 2.3V at 14.05 MHz
Secondary of T1: 1.8V
Q2 side of L1: 2.4V
Base of Q2: 1.6V
Collector of Q2: .5V
Gates of Q5 & Q6: Undetectable
Drains of Q5 & Q6: 150 mV
DC voltages on Q2, Q5 and Q6:
Q2 Collector: 12V
Q2 Base: 2.1V
Q2 Emitter: 1.5V
Q5, Q6 Gates: 2.6V
Q5, Q6 Drains: 13V
Q5, Q6 Sources: 55mV
Any help would be greatly appreciated.