WA3FRP@aol.com wrote:
> A good friend of mine is using MMTTY and could use a little advice in
> setting up his linear.
>
> He wants to be able to use a linear amp in addition to his exciter and needs
> a way to generate a PTT signal from the PC, that keys up the linear several
> milliseconds before it keys the transceiver.
>
> This would help avoid 'hot switching' the linear's antenna relay with drive
> already applied. He wants to avoid using a foot switch plus the keyboard to
> go into transmit.
>
> Can anyone suggest software that will allow him to get two separately
> time-delayed PTT signals from the COM ports or USB ports of his control PC?
>
> Please send replies directly to Terry K7YNO at _k7yno@arrl.net_
> (mailto:k7yno@arrl.net) as he is not currently a member of this list.
>
> Thanks in advance,
>
> Russ WA3FRP
If the exciter is a relatively modern rig why not let it key the linear?
It should provide the proper sequencing to avoid hot switching.
That's how I do it. Rig here is an FT-1000MP Mk V Field.
Philip
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