[TRLog] PTT output from the parallel port

[Pete Smith]

At 08:09 PM 1/11/02 +0100, Udo DL2ZAV wrote:
>
>On 10 Jan 2002 at 14:23, kl7ra wrote:
>
>> 
>> 
>> I also noticed the PTT is not enabled when DVK is used. I have
>> the voice keyer PTT run the radio but I was hoping to use the
>> delay feature. This would allow the relays to lock up in the home brew
>> amps before the  DVK pulse went positive.

Well, SBDVP has a PTT option that uses the same pin as TR does, on the LPT
port.  I haven't checked to see how it works with two radios, but it works
well with one, and is fully integrated into TR's normal operating mode,
rather than having to hit a flock of function keys.  For example, you can
record a CQ Exchange and have it play each time you enter a call and hit
the [enter] key.  Very smooth.

I guess Rich's concern related to using VOX and having RF already being
generated as the amp relay switches.  The SBDVP PTT switching should solve
this.

73, Pete N4ZR

The revised World Contest 
Station Database
is online at www.pvrc.org





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