[ct-user] CW-PTT Delay

Jim Reisert AD1C Jim Reisert AD1C <jjreisert@alum.mit.edu>
Tue, 06 Jun 2000 21:57:24 -0400

At 03:51 PM 6/6/2000 -0600, Gord Kosmenko wrote:

>* CT now supports PTT on pin 16 of the LPT ports. Pin 16 is asserted for
>one baud (dot period) before CW sending commences. This allows amplifier
>relays time to trip before the RF hits.
>Can this value be addressed ?  Using now pin 16, instead of pin 17 this one
>baud "delay" before cw sending commences becomes functional ?

What do you mean by "addressed"?  Just make a circuit similar to the CW 
keying circuit, but wired between LPT16 and your radio's PTT 
input.  Neither the timing, nor the pin, can be changed.

73 - Jim AD1C

Jim Reisert AD1C <jjreisert@alum.mit.edu>

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