[TenTec] Some progress made! --Omni D low to no power--Crystal Filter

Scott Sheppard scottsheppard at videotron.ca
Sat Feb 18 11:02:03 PST 2012


So the next stage of the problem would seem to be finding out why teh crystal is baving linke it is...here is the situation:

1. Normal filter left in place

-great receive, no problem...
-virtually no output at all (as has been beat to death already)

2. Filter removed and jumpered with a .01 capacitor

-wide open receive as expected, lots of signals
-full power TX at all the stages...100 watts out

3. 1.8 khz filter fitted

-receive ok albeit narrower
-virtually no TX power at all (as per situation #1)


Now, in all cases if i run the crystals without any ground connected, I can get about 25 watts out or so....

So, it seems the fact the ground side of this xtal filter circuit is causing some issues and zapping the output...as i mentioned before, my output on the TX mixer shows common to ground which i thought strange...

let the games begin....and to think this is only the beginning of this rig...frozen PTO, LED display issues etc etc...at least I KNOW what those problems are.

scott


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