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@ohnosec.org [mailto:app_rpt-users-bounces@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@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@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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