K3S and WSJT-X

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Re: K3S and WSJT-X

Joe Subich, W4TV-4

On 1/25/2016 9:37 PM, James Bennett wrote:
> I may be out in left field here, although I've been using WSJT-X for
 > quite some time, but I keep the WSJT-X power slider at the max and
 > control my output power at the K3....

I've always: 1) left the PWR slider in WSJT-X at 100%
              2) set the Windows Volume Mixer "Device" slider for the
                 sound card output being used at 70 - 80% (to keep the
                 sound card in its linear range/minimum distortion)
              3) adjusted the K3/K3S Audio input (Line In) for four
                 bars of ALC
              5) set the desired power level with the K3 PWR control

73,

    ... Joe, W4TV

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Re: K3S and WSJT-X

Robert Nobis - N7RJN
In reply to this post by Bob McGraw - K4TAX
Bob,

Yes, I also use the PWR slider bar to adjust the number of bars on the ALC indication, after I have adjusted the Line Gain on the K3.   And, yes, the actual transmit power output form the K3 is adjusted by the Power Level nob on the front panel of the K3.

My issue, is that the PWR slider on WSJT-X is extremely sensitive, but I have been living with this.

73,


Bob Nobis - N7RJN
[hidden email]


> On Jan 25, 2016, at 19:24, Bob McGraw K4TAX <[hidden email]> wrote:
>
> Let me clarify a point.  Use the PWR slider on WSJT-X to adjust the number of bars on the ALC indication on the radio.  Do this in combination with the {MIC}  Line Gain value on the radio.   You should have 4 on solid, 5th flickering.  Actual transmit power is controlled by the PWR value as set on the radio.
>
> 73
> Bob, K4TAX
>
> On 1/25/2016 8:17 PM, Robert Nobis wrote:
>> Bob,
>>
>> I have already tried that and several other setting levels. The issue, I believe, is that the PWR slider on  WSJT-X is very sensitive. A very small movement results in a big swing in actual power.
>>
>> 73,
>>
>>
>> Bob Nobis - N7RJN
>> [hidden email]
>>
>>
>>> On Jan 25, 2016, at 18:51, Bob McGraw K4TAX <[hidden email]> wrote:
>>>
>>> You might try running the K3S LINE Gain at a lower value, in my case 15 to 20, and running the PWR slider in WSJT-X a bit higher.  This is also affected by the SPEAKER level in the Windows Sound controller panel.  Also under "Enhancements" make sure "Disable All Enhancement"  box is checked.
>>>
>>> 73
>>> Bob, K4TAX
>>>
>>> On 1/25/2016 7:41 PM, Robert Nobis wrote:
>>>> Ian,
>>>>
>>>> I have the same issue with my K3 and WSJT-X. Great care must be taken when making the Tx power adjustment, and it is far too easy to significantly change the ALC level with the slightest movement.
>>>>
>>>> 73,
>>>>
>>>>
>>>> Bob Nobis - N7RJN
>>>> [hidden email]
>>>>
>>>>
>>>>> On Jan 25, 2016, at 18:37, Ian <[hidden email]> wrote:
>>>>>
>>>>> Thanks all for the helpful suggestions - turns out the audio drive levels
>>>>> are pretty sensitive.  The WSJT Power slider on the right is very touchy in
>>>>> combination with the K3S Mic Gain knob.  ALC can disappear in an instance!
>>>>> 73, Ian N8IK
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>> From: Don Wilhelm [mailto:[hidden email]]
>>>>> Sent: Monday, January 25, 2016 17:52
>>>>> To: Ian <[hidden email]>; [hidden email]
>>>>> Subject: Re: [Elecraft] K3S and WSJT-X
>>>>>
>>>>> Ian,
>>>>>
>>>>> Are you actually getting RF output?  Check with an in-line wattmeter.
>>>>>
>>>>> WSJT-X is no different than other soundcard data modes.
>>>>> Do you have the DATA mode input set to LINE IN?  If you have a K3S or K3
>>>>> with the KIO3B *and* are using the internal soundcard, anything plugged into
>>>>> the LINE IN jack on the K3/K3S will override the audio input from the
>>>>> internal soundcard.
>>>>>
>>>>> Do you have the data submode set to DATA A?
>>>>> The audio drive should be set to produce 4 bars solid on the ALC meter with
>>>>> the 5th bar flashing - that is the "No ALC" point, the 1st 4 bars are there
>>>>> to help you adjust the audio drive level.  Set the MIC SEL to LINE and set
>>>>> MIC + LINE to off.  Set the soundcard output slider up to at least 3/4 and
>>>>> then adjust the Line-In (Mic) Gain to obtain the proper deflection on the
>>>>> ALC meter (you can do that in TX TEST mode without producing RF).
>>>>>
>>>>> If you have no indication on the ALC meter, that is good reason for no RF
>>>>> output.
>>>>>
>>>>> 73,
>>>>> Do W3FPR
>>>>>
>>>>> On 1/25/2016 5:26 PM, Ian wrote:
>>>>>> TXMON installed correctly!  Works fb on CW and SSB.
>>>>>>
>>>>>>
>>>>> -----
>>>>> No virus found in this message.
>>>>> Checked by AVG - www.avg.com
>>>>> Version: 2016.0.7357 / Virus Database: 4522/11485 - Release Date: 01/25/16
>>>>>
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>>
>
>
>

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Re: K3S and WSJT-X

Joe Subich, W4TV-4

On 1/25/2016 10:33 PM, Robert Nobis wrote:
 > My issue, is that the PWR slider on WSJT-X is extremely sensitive,

That's why I leave it at 100%, turn down the "Device" level in Windows
Volume Mixer and adjust the K3/K3S Line In (Mic Gain) for the correct
four bar ALC level.  The K3/K3S Line In level runs between 15 and 25
for four bars depending on the level of the sound card device (master)
level and is easy to adjust.

73,

   ... Joe, W4TV


On 1/25/2016 10:33 PM, Robert Nobis wrote:

> Bob,
>
> Yes, I also use the PWR slider bar to adjust the number of bars on the ALC indication, after I have adjusted the Line Gain on the K3.   And, yes, the actual transmit power output form the K3 is adjusted by the Power Level nob on the front panel of the K3.
>
> My issue, is that the PWR slider on WSJT-X is extremely sensitive, but I have been living with this.
>
> 73,
>
>
> Bob Nobis - N7RJN
> [hidden email]
>
>
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