[Elecraft] K3 on JT-65, ALC varies widely

[Joe Subich, W4TV]

Since bars 0-4 represent audio drive level and *not* true ALC when
in digital mode (DATA A, AFSK A), what you are seeing represents a 
significant change in *audio drive level* for the different tones.

Are you sure you are using DATA A and not AFSK A with the AFSK
Filter turned on?  What frequency range are the tones?

73,

    ... Joe, W4TV


On 4/16/2017 5:29 PM, Dave Hachadorian wrote:
> I just started playing with JT-65 and JT-9 this weekend, and I’ve already worked a bunch of DX, so it’s basically working ok.
>
> Transmitting on JT-65, I see a lot of variation in ALC and power as the various tones change.  I’m using Data A mode with the stock 2.7 filter.  I just had a QSO with tone frequencies of about 1800 – 1950 Hz, and ALC varied from zero to five bars on the different tones.  Sound card output is about 50%, and Line In level is at 12.  Is this variation normal, or am I doing something wrong,  and where should I set the ALC?
>
> Thanks.
>
> Dave Hachadorian, K6LL
> Yuma, Arizona
>
>
>
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