[App_rpt-users] Connecting several sites together on a hubusing link radios

Fri Aug 26 15:39:18 UTC 2016

Just interfaced an MMDVM to a DR-1X and from what I found an external 
controler is very easy to connect.

what you need to do is put the repeater in external mode (shorting a pin to 
ground) and then use the flat audio in and out on the db-15 connector in the 
back.

there are pins for ptt and cos.

A nice little RPI and a URI-X and you have yourself a first class controler 
for that repeater

-----Message d'origine----- 
From: Bob
Sent: Friday, August 26, 2016 11:09 AM
To: 'David McGough' ; 'Stephen - K1LNX'
Cc: 'app_rpt mailing list'
Subject: Re: [App_rpt-users] Connecting several sites together on a hubusing 
link radios

I believe the DR-1X is nothing more than a controller with two FTM-400XDR
radios (sans the interface panels). It appears the interfacing issues relate
to interfacing an Allstarlink controller to the DR-1X controller. It seems
to me Allstar is easiest to interface to a radio directly. What has been
your experience?

Thanks,
r/Bob
k6ecm

-----Original Message-----
From: app_rpt-users-bounces at ohnosec.org
[mailto:app_rpt-users-bounces at ohnosec.org] On Behalf Of David McGough
Sent: Friday, August 26, 2016 7:01 AM
To: Stephen - K1LNX
Cc: app_rpt mailing list
Subject: Re: [App_rpt-users] Connecting several sites together on a hub
using link radios

Okay about your setup....Well, the Mastr II should be easy to hack into
submission... As for the DR-1X repeaters, some solutions I've seen would
make Rube Goldberg smile.

On Fri, 26 Aug 2016, Stephen - K1LNX wrote:

> >
> > I'm not sure what kind of controllers you've got??
>
>
> No controllers on 3 out of 5 sadly.. 4 out of 5 of these are DR-1X's, and
> the fifth is a GE Master II with a ID-O-Matic IV board. My repeater (also
a
> DR-1X) will have an SCOM 7330 on it, but has not been brought online yet.
>
>
>
> On Fri, Aug 26, 2016 at 8:18 AM, David McGough <kb4fxc at inttek.net> wrote:
>
> >
> > Stephen,
> >
> > Yes, eliminating the Repeater TX hang time, one way or another, is the
> > best solution....I'm not sure what kind of controllers you've got?? One
> > possibility would be to have a Repeater transmitted PL tone directly
> > follow the Repeater COS....Then, the simplex link radios would look for
> > that PL tone.  If the Repeater's RX COS isn't active, no PL tone
> > transmitted, and no ping-pong. Then, you could still have a Repeater
> > generated TX carrier hang time.
> >
> > The problem with rxondelay is that it'll force users to slow down their
> > chatter, since the first parts of words during the delay period will get
> > chopped off. If TX hang times are long, the rxondelay will be long...Not
> > ideal.
> >
> >
> > 73, David KB4FXC
> >
> >
> >
> > On Fri, 26 Aug 2016, Stephen - K1LNX wrote:
> >
> > > David,
> > >     Yes, this is the exact scenario. I think it can be solved by
> > > eliminating the hangtime from propagating across the hub alltogether,
but
> > > not sure what the best approach is.
> > >
> > > Thanks,
> > > Stephen
> > > K1LNX
> > >
> > > On Fri, Aug 26, 2016 at 6:58 AM, David McGough <kb4fxc at inttek.net>
> > wrote:
> > >
> > > >
> > > > Hi Stephen,
> > > >
> > > > I guess, in your scenario, the ping-pong is generated from repeater
TX
> > > > hang times? So, something like:
> > > >
> > > > 1) User keys up "Repeater A" directly.
> > > >
> > > > 2) Simplex AllStar link "Radio 1" hears "Repeater A" TX audio and/or
> > hang
> > > > time and repeats to the hub.
> > > >
> > > > 3) Simple AllStar link "Radio 2" connected to same hub keys and
brings
> > up
> > > > "Repeater B"
> > > >
> > > > 4) "Repeater A" unkeys, "Radio 1" COS goes inactive, "Radio 2"
unkeys.
> > > >
> > > > 5) "Radio 2" hears "Repeater B" TX audio and/or hang time, keys hub,
> > > > "Radio 1" and "Repeater A".
> > > >
> > > > 6) "Repeater B" unkeys, "Radio 2" COS goes inactive, "Radio 1"
unkeys.
> > > >
> > > > 7) Goto 2 and repeat forever
> > > >
> > > >
> > > > 73, David KB4FXC
> > > >
> > > >
> > > >
> > > > On Fri, 26 Aug 2016, Stephen - K1LNX wrote:
> > > >
> > > > > Hi guys... I am in the midst of deploying a 5 site system. All of
the
> > > > sites
> > > > > with the exception of my own will be using link radios sitting on
the
> > > > > repeater pair, some sites do not have internet access so this is
the
> > only
> > > > > option. Each node will be permalinked to our hub.
> > > > >
> > > > > What we discovered when we brought site number 3 online was the
> > dreaded
> > > > > "ping-pong" effect, and I did some digging and found out about the
> > > > > rxondelay parameter, that seems to be the place to start with
this.
> > > > >
> > > > > The other option we are considering is dropping the hang time off
> > each
> > > > > repeater and using app_rpt to do hang time and courtesy tones
instead
> > > > > (duplex = 1 instead of 0) but not sure that would work real well
or
> > be
> > > > > optimal.
> > > > >
> > > > > Anyone have any experience with a setup like this that can offer
some
> > > > > advice? This is my first foray into this unfortunately, I've
always
> > just
> > > > > interfaced the radio or repeater directly to app_rpt in the past
or
> > > > through
> > > > > a controller so it's been a bit of a challenge.
> > > > >
> > > > > 73
> > > > > Stephen
> > > > > K1LNX
> > > > >
> > > >
> > > >
> > >
> >
> >
>

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