[Elecraft] fldigi KX3 question

[Don Wilhelm]

Terry,

What data submodes are you using?

Fldigi is a soundcard oriented application and you should be using DATA 
A for PSK and AFSK for RTTY.  If you are trying to use data submodes of 
PSKD or FSKD, you will receive just fine, but transmit will not happen 
with Fldigi.

Typically, PSK will work fine at low power levels, but the RTTY folks 
tend to run at higher power levels.  You may manage on RTTY at 5 watts, 
but the full 100 watts from the KXPA100 will give you better success rates.

Note that the default bandwidth for DATA A and AFSK A data submodes is 
narrow on the KX3.  You will want to widen the bandwidth to give you a 
full waterfall display on Fldigi.  Click on the signal of interest to 
decode it and you should transmit on that frequency.

Fldigi does not have an idle timeout, and that is what is telling me you 
are trying to work with Fldigi in PSK D or FSK D data submodes. Those 
work from characters entered via the paddles keying CW or in ASCII 
characters from KX3 Utility terminal tab, but will not work with the 
audio tones provided by Fldigi.  Use DATA A mode for PSK and other 
digital modes, and AFSK A for RTTY work.

73,
Don W3FPR

On 3/28/2016 7:06 PM, Terry Brown wrote:
> I am new to fldigi.  I am using the SignaLink USB to interface between my
> KX3 and computer.   I have my KX3 connected to fldigi using Hamlib rig
> control.  That seems to work fine tracking the VFO and placing software into
> the right mode when I change it on the KX3. First, could someone tell me
> what power output I should be using for psk31, RTTY, and some of the other
> digital modes supported by fldigi?  I do have the KXPA100 if I need more
> than 10 watts power.
>
>   
>
> I can receive digital modes just fine.  I am still trying to identify the
> various sounds other than PSK31 and RTTY which were the predominant ones I
> used about 9 years ago before my hiatus from Ham Radio.
>
>   
>
>