[Elecraft] Sequencer keying with K3/XV-144 without rigblaster?

[Don Wilhelm]

Eric,

You may be able to dispense with the Rigblaster if you activate the 
sequencer with the K3 KEYOUT signal rather than PTT.  If you need more 
sequencer time than the 20 ms. maximum provided by the CONFIG: TX DLY, 
one of your sequencer outputs could provide the TX INH input to the K3 
to hold off RF until the sequencer cycle completes.  The TX INH may be 
set to use either a positive or negative logic state signal.

73,
Don W3FPR


eric norris wrote:
> Dear Elecrafters:
>
> I am selling my TS-2000 and building a K3/XV-144 for EME on 2m as well as normal modes and digital on HF
>
> My question is, has anyone figured out how to eliminate using a rigblaster when using a K3 with a sequencer (LNA Technologies)? 
>
> The K3 isolates the 
> audio signals, but I don't see how I can pick off the PTT without 
> making it cumbersome to use on HF digital modes (sequencer not used). 
> Right now I use the LNA Technologies mic cable to pick off the PTT 
> coming from the rigblaster, send it to the sequencer, then it comes 
> back to the rig from the sequencer (with the preamp and amp PTT 
> controlled by the sequencer also).  
>
> This requires using a serial switch--sending the computer signals either to the K3 (or TS-2000) directly for all other digital modes, but sending it to the rigblaster when using 2m for EME.
>
> I would really like to find a solution where I don't have to constantly swap cables, or cut into the XV-144's PTT line to send it to the sequencer since this means I would then always have to use the sequencer for 2m.  
>
> Any and all help appreciated. Please reply to my email directly.
>
> 73,
>
> Eric WD6DBM
>   
>