[Elecraft] K3 sub RX off freq in SSB diversity mode

[dmb at lightstream.net]

Hello Milt,

I think this will occur with the original synthesizers, if you are using
dissimilar roofing filters while in diversity mode. For example, if you
have the 2.8 KHz filter installed in RX1, but the 2.7 KHz filter in RX2,
you will probably experience this (as I recall). If you can, try selecting
a bandwidth while in SSB mode where both receivers will be using the same
roofing filters (if they are installed), and see if the frequency shift
suddenly disappears.

I am not absolutely certain of the above, but I seem to remember that was
what I experienced before I upgraded to the the new synthesizers many
months ago.

73,
Dale WA8SRA


> I normally don't have much to post here, but today I do have a question.
>
> I discovered last night that I have the following situation.
>
> When in SSB mode on 160 Meters and the 2nd RX is turned on, the SSB
> signals
> are on the same frequency.
>
> When I invoke the diversity mode, the 2nd RX is receiving at 1.5 kHz
> higher.
>
> I tested this on numerous signals and at various frequencies; always the
> same.
>
> In the CW mode the problem does not exist.  In diversity mode the CW
> signals
> in both RXs are on the same frequency.
>
> Anyone with an idea of what is happening here.  I do not remember this
> happening before.  RIT is off.
>
> I did not try other bands as I normally do not operate on other bands.
>
> I have searched the archives but have not gotten a hit on anything like
> this.
>
> Any responses, direct or to the reflector would be appreciated.
>
> Thanks in advance es 73 for now......
>
> de Milt, N5IA
>
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