[Elecraft] NB option
pfb
[email protected]
Thu Jun 5 10:28:03 2003
Help,
Installed the noise blanker and the radio went deaf. I have completed it
according to specs and now to hear the noise floor I have to max out the AF
gain and the signals are just barely audible - I have to put my ear near the
speaker to even make out the conversations. Yet yesterday before I
assembled and removed anything this rig was hot and the AF gain was always
set at 2-3-4 level and played nice clear and loud. Not now!!!!
So I removed the board and it is still muffled. Muffled - that seems to be
best way to descibe the signal now.
I have removed the jumper at W5. I have removed R88, 89, 90 and I have
installed a jumper between R89 and and a 2.7 k resistor is at R88.
Any Ideas on what I did wrong? This thing went from being the hottest
little reciever for 3 days to a deaf mule simply by installing the Noise
Blanker???!!! Did I maybe damage a pad or trace in removing R88,89,90? I
do not know what to look for now.
Any suggestions or help is appreciated.!
Paul
K8QT