P3 Carrier always 6khz below freq.

[KM4VX]

I have noticed that my P3 displays a solid carrier 6khz below the frequency to which I am listening. When I tune to the frequency there is no sound but a solid carrier on the waterfall and a good spike on the screen, although no audible signal. This appears consistent on every band, a spike usually below but occasionally above the listening frequency with a solid carrier in the waterfall and a spike on the screen; no audible signal when moving to that frequency, and the spike and carrier just moves another 6khz down. Nothing I do to the K3 reception makes any difference. Any information to identify this carrier and eliminate it would be appreciated. Many thanks. Ron

[Phil Wheeler-2]

In all modes or only in particular modes, Ron?

73 Phil w7ox

On 4/29/14, 2:00 PM, KM4VX wrote:

> I have noticed that my P3 displays a solid carrier 6khz below the frequency
> to which I am listening. When I tune to the frequency there is no sound but
> a solid carrier on the waterfall and a good spike on the screen, although no
> audible signal. This appears consistent on every band, a spike usually below
> but occasionally above the listening frequency with a solid carrier in the
> waterfall and a spike on the screen; no audible signal when moving to that
> frequency, and the spike and carrier just moves another 6khz down. Nothing I
> do to the K3 reception makes any difference. Any information to identify
> this carrier and eliminate it would be appreciated. Many thanks. Ron
>
>

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[Vic Rosenthal]

Try a different RG58/u cable. Make sure the shield is continuous.

On 4/29/2014 2:45 PM, Phil Wheeler wrote:

> In all modes or only in particular modes, Ron?
>
> 73 Phil w7ox
>
> On 4/29/14, 2:00 PM, KM4VX wrote:
>> I have noticed that my P3 displays a solid carrier 6khz below the
>> frequency
>> to which I am listening. When I tune to the frequency there is no
>> sound but
>> a solid carrier on the waterfall and a good spike on the screen,
>> although no
>> audible signal. This appears consistent on every band, a spike usually
>> below
>> but occasionally above the listening frequency with a solid carrier in
>> the
>> waterfall and a spike on the screen; no audible signal when moving to
>> that
>> frequency, and the spike and carrier just moves another 6khz down.
>> Nothing I
>> do to the K3 reception makes any difference. Any information to identify
>> this carrier and eliminate it would be appreciated. Many thanks. Ron

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/

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[KM4VX]

Thank you for the replies. The coax provided by Elecraft is good,  but I had it twisted around other cables when connected between the K3 IF output and the P3 IF input. I disconnected the cable from the P3, rerouted it from the K3 so as not to wrap around numerous other cables, and the troublesome inaudible carrier disappeared. Problem is now solved and maybe this experience helps others. The connecting cable is very well made and shielded, but direct contact with other coax/cables created RF that did get into the P3. Ron