Hi Ray and John,
KSB2 manual page 22:
Note: The BFO settings for LSB and USB are swapped on 15, 12 and 10
meters due to the K2's frequency
mixing scheme. If you use 17 m or below for making BFO changes, the
following rules apply:
LSB: moving the LSB BFO lower in frequency will raise the voice pitch
and improve carrier rejection.
USB: moving the USB BFO higher in frequency will raise the voice pitch
and improve carrier rejection.
That's the reason for what you observe.
73,
Peter - PA0PJE
John Oppenheimer schreef:
Hi Ray,
I believe that your observation is normal. I performed a fresh CAL FIL
alignment on the two SSB modes, and tried your test, I get similar results.
When on 21 MHz, USB has lower frequency noise, LSB has higher frequency
noise.
John KN5L
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