KX3 WSJT-X OS X --Update

[k7au]

Here might be a hint, but not sure..

http://g0mgx.blogspot.com/2013/07/jt-what-ah-jt9.html?m=1

w7wo ..


Hi...Regarding WSJT-X JT-65 and JT-9 modulation of ssb with power set to 2 watts.

The Audio is clear and the tone is pure.  I cannot get ALC to hold at 4 or 5 bars.  It blinks and then drops out.  I am using a dummy load for the antenna and MacBook Pro for audio.  Direct connect with Elecraft cables.  Changing nothing in the setup and switching to fldigi PSK31 works FB.  I am perplexed.  It seems like the narrow audio of the JT sigs won't modulate the KX3.  Anybody else doing this exercise or am I messing with the bleeding edge?  

I have tried the obviuos input levels and KX3 mic GAIN.  Tried with power set from 0 to 5 watts.  It truly feels like the JT tone is causing some kind of interaction with ALC control..

Thanks,
73 de Bob w7wo
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[Lyle Johnson]

Try setting mic gain to 0, then increasing it slowly to get to the 4 or
5 bars of ALC.  If for some reason the JT Tx signals are significantly
higher in amplitude than the PSK31 Tx signals coming from the PC, the
ALC in the KX3 may be overcompensating.  The workaround at present is to
have too little gain and increase it, rather than depending on the Mic
ALC to perform large amounts of compensation.

Hope this helps,

73,

Lyle KK7P

> Here might be a hint, but not sure..
>
> http://g0mgx.blogspot.com/2013/07/jt-what-ah-jt9.html?m=1
>
> w7wo ..
>
>
> Hi...Regarding WSJT-X JT-65 and JT-9 modulation of ssb with power set to 2 watts.
>
> The Audio is clear and the tone is pure.  I cannot get ALC to hold at 4 or 5 bars.  It blinks and then drops out.  I am using a dummy load for the antenna and MacBook Pro for audio.  Direct connect with Elecraft cables.  Changing nothing in the setup and switching to fldigi PSK31 works FB.  I am perplexed.  It seems like the narrow audio of the JT sigs won't modulate the KX3.  Anybody else doing this exercise or am I messing with the bleeding edge?
>
> I have tried the obviuos input levels and KX3 mic GAIN.  Tried with power set from 0 to 5 watts.  It truly feels like the JT tone is causing some kind of interaction with ALC control..
>
> Thanks,
> 73 de Bob w7wo
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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Please help support this email list: http://www.qsl.net/donate.html

[KA2Y]

WJST-X and Mac OSX Sierra has a problem with the audio codecs.  This has been reported by a few people.  I cannot make it work reliably on a MacBook Pro with OS X Sierra, but another MacBook Pro with OS X El Capitan works flawlessly.  Seems to be an Apple thing.