[Elecraft] KX3 No meter indication when transmitting digital

[Don Wilhelm]

Tony,

Check your audio level settings - there are at least 3, the KX3 mic 
gain, the soundcard level in your OS and any "Power" slider in your 
software application, and if you are using a SignaLink, there is a 4th, 
the knob on the SignaLink box.  They should all be near a mid-range 
setting.  If set to a low end or a high end, the resolution between 
steps is large - when set to a mid-range position the steps between 
adjacent values is much smaller and easier to control.

In WSJT-X, that slider marked POWER is mislabeled, it is just another 
audio level control.  Set it properly and don't change it.  The only 
valid power control is the KX3 knob.

Read the document on this subject on my website www.w3fpr.com.  Scroll 
the left column to the bottom entry and click to see the document.

Also, you should be using DATA A mode, and not AFSK A.  AFSK A is 
special for use with RTTY.

73,
Don W3FPR

On 3/14/2019 10:52 PM, Tony Estep wrote:
> I have been operating with FT8 and WSPR lately. Both use an audio-generated
> digital signal just like any AFSK mode. I tune up my transmitter to show
> 4-5 bars on ALC. Everything seems to work at first, but after one or two
> transmissions the display shows only one bar on the left and one on the
> right -- and if I move the Mic Gain, all bars disappear leaving a blank
> display. The transmit light stays on but I can't tell if I'm transmitting
> any audio or not. What's going on??