[Elecraft] K3S USB audio output needs to be adjustable in Menu

[Jim Rogers]

Richard - I second your report, there is no fine adjustment for the USB 
audio on the K3s either in received audio or transmitted audio. When the 
band is noisy, I have to reduce LIN OUT to 01 or alternatively reduce 
the overall system gain with the RF gain (which in the case of the K3 
and K3s is IF gain).

When operating meteor scatter on 2M with an Elecraft K144XV transverter 
I had to reduce the audio drive from the JT65 software to 50% to prevent 
RF power out overshoot and hunting, typical in over-driven closed loop 
systems. This allowed me to advance LIN IN and the end result was the 
power detection system of the K3s settled down.

There are work-arounds.

Jim, W4ATK

K-Line, K2/10


On 6/26/2017 6:11 PM, Christopher Hoover wrote:
> USB audio with the default settings has been fine for me from the first
> day.     Check your settings?
>
> On Thu, Jun 22, 2017 at 10:31 AM, Dick via Elecraft <
> elecraft at mailman.qth.net> wrote:
>
>> Hello Elecraft,
>>
>> When feeding the audio from the K3S USB port to the CPU, the K3S audio
>> level is extremely high and way too hot for good performance  on many
>> digital
>> modes.
>>
>> Example, even with my CPU's sound card set at the lowest possible level of
>> "01" my K3S is hitting the JT-65 software with a super strong signal that
>> is  much higher than the software wants to see and performance is degraded.
>> The same is true when operating RTTY using MMTTY or 2Tone software.
>>
>> The USB audio output on the K3S needs to be adjustable in the K3S Menu as
>> it was on the K3 Serial port.
>>
>> I wrote to you a few months ago about this without a positive  reply.
>> Please address this serious issue.
>>
>> Thank you-
>>
>> Richard Van Zandt- K9OM
>>
>>
>>
>> In a message dated 6/2/2017 7:28:48 P.M. Central Daylight Time,
>> elecraft-request at mailman.qth.net writes:
>>
>> If you  are using Line Out with a fixed gain setting to feed audio to
>> WSJT-X,  adjusting the AF control will not do anything. What I do is leave
>> my RF  gain control at its normal position (around 3 o'clock) and use the
>> slider  at the lower left in the WSJT-X window to compensate for  gain
>> variations.
>>
>> 73,
>> Rich VE3KI
>>
>> W3FPR wrote:
>>
>>>   Bret,
>>>
>>> You may have better luck with running the RF Gain full  and adjusting
>>> with the AF gain.  That way the RX AGC will smooth  out variations in the
>>> signal level.
>>>
>>> 73,
>>> Don  W3FPR
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