[Elecraft] K3: Low power in RTTY

[hank k8dd]

I got in NAQP RTTY late for an hour or so last night.  Only used 20, 40 & 
80M and the power was 100 watts out the whole time - at least when I looked 
at the wattmeter!
I did watch the PA Temp, after I heard the fans speed up, which made it into 
the mid 40's C.
The only problem was the AF Gain was controlling the Line Out to the PC - a 
problem with trying to record the contest with both RX and TX signals. 
Every time I'd change the AF Gain I had to adjust the Line In level on the 
PC!   And with =PHONES turned off you can't record the TX side of the QSO. 
Kind of a PITA.
Other than that the K3 using 500 Hz (both first IF crystal and second IF 
DSP) was a real treat!

73    Hank    K8DD


----- Original Message ----- 
From: "WA6L" <wa6l at arrl.net>
To: <elecraft at mailman.qth.net>
Sent: Sunday, July 20, 2008 10:37 AM
Subject: [Elecraft] K3: Low power in RTTY


>
> I worked for a few hours during the NAQP RTTY contest this weekend and ran
> into a strange issue.  On 15 and 20 I get full power out while running 
> RTTY
> on the K3.  On 40 and 80 I am limited to about 20 watts.
>
> I am running versions 2.02/1.77 of the firmware.  I normally run in 'Data 
> A'
> mode but tried 'AFSK A' as well.  SWR was similar for all bands as was the
> software (Writelog & MMTTY).
>
> I looked at every control and configuration that I could think of that 
> might
> be different betwen the bands but couldn't find anything.  It may well be
> that I have a setting wrong but I cannot find it.  To try and isolate the
> issue I left everything the same except the band button, and still ran 
> into
> the problem.
>
> On CW, the power out is consistent between all bands.
>
> Any help would be appreciated.  If this is a known firmware issue let me
> know and I will load one of the betas.
>
> Thanks and 73,
>
> John, WA6L

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