Herb many thanks for your reply
?
Here are the results
?? The SA indicates a level of -75dBm at 30MHz
?? Switching on LNA the signal is gone completely
It does look as if the LNA is faulty but not to sure about the attenuator
I did a attenuator test and the green line was straight although also at a very low level
Maybe the input switch is also faulty
?
Bob many thanks for your input
?
Regards, Reg
?
?
?
