I described this in detail in an earlier post, Cesco. The basic idea is
to modify the WinLink server to keep the Pactor modem in its reset
state when server's frequency is occupied. One must of course allow the
modem to accept valid incoming requests, but the state diagram for this
is straightforward.
73,
Dave, AA6YQ
--- In [email protected], "cesco12342000" <[EMAIL PROTECTED]> wrote:
>
> > Its now clear why the two-year-old SCAMP busy frequency
> > detector has
> > never been incorporated into WinLink servers.
>
> How should they do it?
> One is a soundcard app, the other a proprietary microcontroller box.
>
> in the old days, when packet qrm was sometimes a problem we had a
> "robot silencer" to wipe a qrg clean. The program was listening to
> ongoing transfers, noting to, via and from adresses, and the sequence
> number. Then it would send a short "disconnect" with spoofed sender
> and seq.number to the robots. The qrg did always clean-up in a minute.
> I guess pactor would be sensitive to this type of busy indicator.
>
