[Elecraft] K3 won't TX in FT-8

[Don Wilhelm]

Larry,

FT-8 is no different than any other data mode, so if other data modes 
work look carefully at the FT-8 computer setup.

One thing I can say is that you must have 4 bars of ALC showing with the 
5th bar flickering.  If you have no indication on the ALC meter, that 
means the K3 is not getting enough audio from your software application, 
and you will have to find out why - perhaps the "power" slider in the 
FT-8 application is set too low.

You might want to take a look at the data mode setup on my website 
www.w3fpr.com.  In the left column scroll down to the last entry and 
click on it to get to the article.

73,
Don W3FPR

On 1/20/2018 12:12 PM, Larry Libsch wrote:
> Group,
> 
>          I am unable to get my K3 to TX any RF when set up for FT-8. 
> Hardware is K3, Behringer U-phoria UMC202HD USB sound card running on 
> WIN XP with most recent version of WSJT-X software. FT-8 settings Radio 
> Tab: baud 38,400, data 8, stop 1, handshake none, PTT CAT, Mode 
> data/packet, split none. Tests of CAT and PTT are both successful. 
> Soundcard tab is set for the Behringer card.
> 
>          Soundcard is cabled to LIne In, Line Out on K3. I am in Data A 
> (USB) mode. K3 Menu Mic Sel is set to line in/line out. Waterfall 
> displays signals and they decode properly.
> 
>          When I click the tune button in the FT-8 software, the K3 goes 
> into transmit but there is no RF out. When I press the tune button on 
> the K3 I do get RF out. When we briefly attached a headphones plug to 
> the soundcard out lead that had been connected to the K3 line in we 
> could hear the tuning tone when clicking on the tune button in FT-8. I 
> do AFSK RTTY without difficulty so I do not think the line in jack is 
> faulty.
> 
>          Ideas, please.
> 
>                                              K4KGG, Larry
> 
> 
> 
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