Digital Modes (PSK31 and JT-65) not working on 40 meters

[Larry Snyder]

PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
watts but then it immediately backs off to a fraction of a watt with no or
very little modulation on the P3 with the transmit monitor.

 

I change to 20 meters and everything works just fine.  Same computer, same
everything - only thing changing it the band switch on the K3??

 

Larry

 

--

Larry Snyder, RN.ORG, SA  - HK2LS

"Each and Every Day Thousands of Nurses Depend on www.RN.org
<http://www.rn.org/>  for their Nursing CEUs!"

Sent via Dell Server/Retiro

 

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[Don Wilhelm-4]

Larry,

Try doing the TX Gain Calibration.  It is quite easy to do from K3
Utility.  If it fails in K3 Utility, then try doing it on a band by band
basis as indicated in the Calibration section of the manual.

73,
Don W3FPR

On 1/30/2016 10:27 AM, Larry Snyder wrote:
> PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
> watts but then it immediately backs off to a fraction of a watt with no or
> very little modulation on the P3 with the transmit monitor.
>
>  
>
> I change to 20 meters and everything works just fine.  Same computer, same
> everything - only thing changing it the band switch on the K3??
>

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[Nr4c]

Sorry. Something else changed.

Antenna?
Mode?
To name two

Sent from my iPhone
...nr4c. bill

> On Jan 30, 2016, at 10:27 AM, Larry Snyder <[hidden email]> wrote:
>
> PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
> watts but then it immediately backs off to a fraction of a watt with no or
> very little modulation on the P3 with the transmit monitor.
>
>
>
> I change to 20 meters and everything works just fine.  Same computer, same
> everything - only thing changing it the band switch on the K3??
>
>
>
> Larry
>
>
>
> --
>
> Larry Snyder, RN.ORG, SA  - HK2LS
>
> "Each and Every Day Thousands of Nurses Depend on www.RN.org
> <http://www.rn.org/>  for their Nursing CEUs!"
>
> Sent via Dell Server/Retiro
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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