[Elecraft] Signalink and K3 (you do not need need a Signal Link)

[Don Wilhelm]

There is also a situation with using DTR or RTS to key the rig.
When the computer boots, those port signals will be 'wiggled' active as 
the OS tests the ports.  It does not matter if the signals appear in a 
real serial port or a USB to serial adapter - it will still happen.

If you are using DTR or RTS for either PTT or keying, you should be aware.
The 'cure' is to put the K3 in TX TEST if you have to boot the computer 
with the K3 powered on, or boot the computer before powering the K3.  
There is no other way to prevent this behavior that I know about.

So take your pick of the method to put the transceiver into transmit 
when using digital modes, but be aware of what happens on the computer 
end and take steps so it does not create a problem or a surprise (or 
cause calls to Elecraft support unnecessarily).

73,
Don W3FPR

On 11/12/2014 1:53 PM, dmoes at nexicom.net wrote:
>
> The best is to key PTT via the serial port either use RTS or a 
> command.  most good digital programs will do this for you.   I use 
> VSPE so that I can use serveral programs at once that access the 
> serial port that  controls the rig  like MMSSTV and logger.  and RTS 
> and DTS will pass through these just fine.
>
>