[Elecraft] # 4472 SSB carrier balance question
jerry
n2uz at comcast.net
Thu Dec 9 18:31:13 EST 2004
It's been a chore getting the SSB kit to work, first the low gain which was a bad solder joint near RFC1 and now I have a question on the carrier balance adjustment.
Doing the coarse adjustment I get a full indication on the S-meter when I set the SSBA param to BAL. Adjusting R1 has no effect on the K2's S-meter.(only when the pot is all the way to either side)
However, the fine carrier balance adjustment is ok. I can hear the carrier on my MP and can adjust R1 to give me a null both on lsb and usb.
Listening to my voice on the MP's headphone and it sounds ok.
Also, I did not understand what the 5th paragraph in the fine carrier balance adjustment is saying. I just put a wire from the MP's input around the K2's speaker cable and was able to hear the carrier and see an indication on the MP's S-meter . Then I adjusted R1 until no S-meter indication and then I could barely hear the tone and I just zero beated it ( switching between lsb and usb on the K2) The K2 read 7019.8 and the MP at 7020.1. R1 is just a little to the right of center like the book says at the null.
Do I have a problem since the coarse adjustment gave no reduction on the K2's s-meter or is everything OK since I was able to do the fine adjustment?
Best regards.
jerry
n2uz at comcast.net
2004-12-09
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