TX EQ could cause problems like this if not in DATA A.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Apr 16, 2017, at 4:52 PM, Joe Subich, W4TV <li...@subich.com> wrote:
> 
> 
> 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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