[Elecraft] K2 with narrow USB transmit audio

[Don Wilhelm]

Chris,

Yes it would.  You can de-tune a bit to make RX sound OK, but you can't 
do that in transmit.
Make sure the filter selected for SSB is the OP1 filter.

73,
Don W3FPR

On 11/6/2022 2:06 PM, Chris wrote:
> Hi Don,
>
> Thank you for the info.  The issue with my K2 is with the transmit 
> audio, so would the same BFO frequency for the receiver affect the 
> transmitter?
>
> Best,
>
> Chris KM1B
>
>
> On Sun, Nov 6, 2022 at 1:56 PM Don Wilhelm <don at w3fpr.com> wrote:
>
>     Chris,
>
>     That condition is normally the result of improper alignment of the
>     BFO
>     frequencies for the upper sideband.
>     There should be no difference is width for LSB and USB that could be
>     blamed on a part.
>
>     Use an audio spectrum analyzer (Spectrogram for instance) for best
>     results when aligning the filters, and set the low frequency
>     "knee" of
>     the passband at 300 Hz.  If possible use a broadband noise
>     generator at
>     the antenna connection, or you can often use "dead band noise" (no
>     signals within the bandpass).
>
>     73,
>     Don W3FPR
>
>     On 11/5/2022 6:41 PM, Chris wrote:
>     > Hello,
>     >
>     > I have three K2's, and one of them has a very strange symptom. 
>     It works
>     > well in LSB and CW, but USB transmit audio seems very narrow. 
>     Receive
>     > audio in all modes works well with no issues.
>     >
>     >
>