[WT-support] PTT timing

[Sinisa Hristov]

Here's the measured PTT timing using Win-Test 3.11.0.
"PTT ON delay" set to 20 ms. CW on LPT1 port. Times in ms.

CW speed   dit length   PTT setup   PTT hold
---------------------------------------------
   24          51.18        20.0       150.5
   32          39.13        20.0       114.3
   40          31.10        20.0        90.3
---------------------------------------------

PTT hold ("tail") time is slightly shorter than 3 dit lengths.

It would be nice to have it adjustable.
With my own software driving FT1000Mk5 and SB220,
I've used values right down to 0 ms.


73,

Sinisa  YT1NT, VE3EA