That'll certainly work. Zetron likes to wire things directly to those switches
and other various points on the control board. Some stations (including mine)
have a TX INHibit input on one of the DB25 connectors on the junction panel; I
planned to ground that with a normally-open relay. No soldering (to the control
board) involved.
The situation I have in mind offers no phone line, no other repeater. So I'm
looking for solutions that connect only to my equipment without modification
(plug-n-pray).
Bob M.
======
--- On Tue, 1/13/09, hybridfan <wa6...@cox.net> wrote:
> From: hybridfan <wa6...@cox.net>
> Subject: [Repeater-Builder] Re: Repeater controller to be used with MSF5000
> To: Repeater-Builder@yahoogroups.com
> Date: Tuesday, January 13, 2009, 5:55 PM
> Well, I'm cheap and lazy also. On the front of the
> control panel is
> a center off Access Disable switch, SW801 sp3t
> (on-off-mom). I took
> a shielded wire, soldered the shield to the center contact
> and the
> center to the "on" contact, i.e., the ACC DIS
> position.
>
> I ran the wire to a friends UHF controller with a spare
> latching
> relay. Connected to the N.O. contacts on the relay. Done!
> One code
> latches the relay disabling the MSF5000, another unlatches
> it.
>
> P.S. I do plan on putting my own control receiver and DTMF
> board on
> line eventually.
>
> Have fun!
>
> Ken
>
> --- In Repeater-Builder@yahoogroups.com, "Bob M."
> <msf5kg...@...>
> wrote:
> >
> > Not only am I cheap, I'm lazy. Building something
> takes time. I was
> mainly interested in a product I could buy that just needed
> power,
> incoming audio, and a set of dry contacts that could be
> stuck inside
> the MSF5000 cabinet and be ready to use in a matter of
> minutes.
> >
> > The DTMF decoder in the MaxTrac also needs to be
> programmed, and it
> uses different software than what would be needed for the
> MSF5000, of
> course. Once this is installed, I don't want to be the
> one they call
> every time they want to change something.
> >
> > Bob M.
> > ======
> > --- On Tue, 1/13/09, nj902 <wb0...@...> wrote:
> >
> > > From: nj902 <wb0...@...>
> > > Subject: [Repeater-Builder] Re: Repeater
> controller to be used
> with MSF5000
> > > To: Repeater-Builder@yahoogroups.com
> > > Date: Tuesday, January 13, 2009, 4:33 PM
> > > --- In Repeater-Builder@yahoogroups.com,
> "Bob M."
> > > <msf5kguru@>
> > > wrote:
> > >
> > > " I believe the Motorola DTMF decoder
> resides in an
> > > expansion
> > > chassis. ... As you said, both are rare and none
> of the
> > > stations I
> > > need to control have an expansion chassis.
> > >
> > > ... The other suggestions, while innovative,
> don't seem
> > > to decode
> > > DTMF, which is what I want to use to control the
> repeaters.
> > > ..."
> > >
> > >
> ------------------------------------------------------------------
> --
> > >
> > > Expansion chassis aren't really all that hard
> to find,
> > > I have gotten
> > > several off that e auction site, as a matter of
> fact there
> > > is a
> > > current listing of two for $40 buy-it-now.
> > >
> > > As regards DTMF, the Maxtrac does a fine job of
> decoding
> > > DTMF as I
> > > said in my original response:
> > >
> > > "...to have the Maxtrac decode DTMF you need
> a small
> > > option board or
> > > you need to duplicate that circuit on a perf
> board.
> > > ..."
> > >
> > > That option board is available from Motorola
> parts for
> > > $64.60 ready
> > > to go, but knowing that hams are cheap, as an
> alternative I
> > >
> > > suggested a DIY version on perf board - it's
> pretty
> > > simple - it
> > > consists of 2 IC's, a 145436 decoder chip and
> a 4021
> > > CMOS shift
> > > register plus a 3.58 crystal and a few resistors
> &
> > > caps.
