P3 display issue.

[VE3WDM]

Yesterday while on the radio I notice on my P3 screen a signal (so I thought) the band was basically dead other than this signal. As I tried to tune to it the signal would move. No matter how close I tried to get to the so called signal it kept the same distance from my VFO A tuning indication. I have seen this on other SDR setups but never on the P3 putting this out there for your input.

Thanks

Mike Weir

VE3WDM
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[kstover]

Check that your cables are tight.

On 6/4/2017 10:23 AM, Mike Weir wrote:

> Yesterday while on the radio I notice on my P3 screen a signal (so I thought) the band was basically dead other than this signal. As I tried to tune to it the signal would move. No matter how close I tried to get to the so called signal it kept the same distance from my VFO A tuning indication. I have seen this on other SDR setups but never on the P3 putting this out there for your input.
>
> Thanks
>
> Mike Weir
>
> VE3WDM
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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--
R. Kevin Stover    AC0H
FISTS #11993
SKCC #215
NAQCC #3441
ARRL
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[k6dgw]

It's leakage of an internal signal from the K3 [or maybe even the P3 but
I doubt it] into your P3, most probably through the cabling.  It moves
when you tune because it's coming from the radio. It's like some fairy
tale or bad dream... you can chase it but you'll never ever catch it. [:-)

Could be a bad IF jumper cable, or possibly common mode on the serial
cable(s).  A common mode choke on the serial cable at the P3 cured mine.

73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

On 6/4/2017 8:23 AM, Mike Weir wrote:
> Yesterday while on the radio I notice on my P3 screen a signal (so I thought) the band was basically dead other than this signal. As I tried to tune to it the signal would move. No matter how close I tried to get to the so called signal it kept the same distance from my VFO A tuning indication. I have seen this on other SDR setups but never on the P3 putting this out there for your input.
>
> Thanks
>
> Mike Weir
>
> VE3WDM
>

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[Bill-3]

I experienced this problem when I first got my P3. The fix was simple:
replace the coax patch cable between the K3and the P3. It has been fine
ever since.

Bill W2BLC K3-line

--
Many of life's problems can be solved by simply deciding what
we can do without. - John Dolan

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