[App_rpt] "How to" for a simplex radio station

Jim Duuuude telesistant at hotmail.com
Tue May 9 02:43:36 EDT 2006


Steve, huh? If you have a digium FXS port, and a simplex radio, you can use 
the port in
E&M mode (it makes a DPO trunk) and fully implements COR and PTT (simplex 
audio) on
a 2 wire port just fine.

using duplex < 2 in this configuration with an ARIB in 2 wire mode should 
work fine, and
it it doesnt, we need to fix it.

>From: Steve Rodgers <hwstar at rodgers.sdcoxmail.com>
>Reply-To: Asterisk Repeater Controler <app_rpt at lists.illiana.net>
>To: f6hqz-m at hamwlan.net
>CC: Asterisk Repeater Controler <app_rpt at lists.illiana.net>
>Subject: Re: [App_rpt] "How to" for a simplex radio station
>Date: Mon, 8 May 2006 21:17:31 -0700
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>
>Francois,
>
>We support simplex operation with the duplex= statement in the node block.
>Normally the default is duplex=2 which is a full duplex repeater. Duplex=0 
>is
>a simplex node with no telemetry, and duplex=1 is a simplex node with
>telemetry. Telemetry is command responses, ID's, etc.
>
>For node use, app_rpt requires 2 FXS ports are required per node (one for 
>TX
>and one for RX) Regardless if it is duplex or not.
>
>
>On Monday 08 May 2006 05:42, f6hqz-m at hamwlan.net wrote:
> > Hello Jim and Steve,
> >
> > I hope all is fine for you two  :-)
> >
> > I am tempting to connect few simplex stations (1 VHF, 1 UHF and 1 HF) to 
>my
> > Asterisk in my chack.
> > I want to connect them directly to my TDM2433E card, because I have "too
> > much" FXS lines available.
> >
> > So, I am wondering how to use this FXS lines and I have probably missed
> > something because I can't.
> > I have searched some examples on Voi-info, Zapata and QRV web sites,
> > without seen any kind of help for my usage or few explanations about the
> > method used for COR and PTT actions through such a FXS.
>
>You need our ARIB board for this.
>
> >
> > If I read the zapata. and zaptel.conf exampel files included into the
> > Asterisk distro, I can see that it seems to be possible to use 2 
>different
> > kinds of signaling for FXS and radio : E&M or "sf" or "fxsks" or "fxsgs" 
>in
> > zaptel.conf, and em_txrx or sf_txrx in zapata.conf...
> > I don't understand well what I must use for my situation (I don't know 
>how
> > works E&M signaling exactly).
> > I have choosen em_txrx thinking that this could be used on only one FXS
> > channel to have COR and PTT.
>
>E&M is just a placeholder for implementing COR and PTT signalling and only
>used with the quad radio PCI card.
>
>You do it like this...
>
>zaptel.conf:
>
>fxogs=17 # TX bench test pair channel 17 on channelbank
>fxols=18 # RX bench test pair channel 18 on channelbank
>
>
>zapata.conf:
>
>; Channel 17,18
>
>callwaiting=no
>threewaycalling=no
>transfer=no
>context=ext-disconnected
>mailbox=
>callerid="Bench TX"<117>
>signalling=fxo_tx
>channel = 17
>
>signalling=fxo_rx
>context=ext-disconnected
>threewaycalling=no
>callwaiting=no
>transfer=no
>mailbox=
>callerid="Bench RX"<118>
>channel = 18
>
>
>rpt.conf:
>
>[112] ; node block
>
>rxchannel = Zap/18                      ; Rx audio/signalling channel
>; Note: if you use a unified interface (tx/rx on one channel), only
>; specify the rxchannel and the txchannel will be assumed from the 
>rxchannel
>txchannel = Zap/17                      ; Tx audio/signalling channel
>
>duplex = 1;		Simplex node with telemetry
>; Other config stuff for the node block (don't assume that the lines above 
>are
>all that is required!!!!
>.
>.
>.
>
>
>
>
>
> >
> > But, I can't access to my "node" when I tempt to call it with apt(100) 
>or
> > apt(100|X) into extensions.conf.
> > Asterisk console tells me :
> > May  8 14:32:23 WARNING[1562]: app_rpt.c:5866 rpt_exec: Cannot find
> > specified system node 001
> >
> > In my rpt.conf, I have very few lines for this first test link :
> >
> > [001]                                   ; Node ID of first repeater
> > ;VHF Base #1 FT290R
> > rxchannel = Zap/2                       ; Rx audio/signalling channel
> > context = HAMWLAN                       ; dialing context for phone
> > callerid = ""F6HQZ_VHF_BASE1" <77005>   ; Callerid for phone calls
> >
> > [nodes]
> > 001=radio at 127.0.0.1/001,NONE
> >
> > So dear OM's, could you help me to start this simplex stations that I 
>want
> > to add to your main Asterisk radio network ?
> > May be it could be nice to write some such paper in the voip-info wiki 
>to
> > have a real example to start easyly ?
> >
> > I hope to start my radio link before the may 20th, due to a HAMfest in
> > France with hudreds of HAMs.
> > I will be pleased to annouce and show this first France/USA radio link 
>with
> > Asterisk boxes and your RPT application working.
> >
> > For now, I have (too) few HAM's connected to my Asterisk box, chating
> > together, but having only receivers access (2 HF RX on 7 MHz band).
> >
> > If you want check my HF listening channels, I can give you an IAX2 
>account
> > or we can create an IAX2 trunk immediatly that could be used later for 
>our
> > future radio link between our two countries.
> >
> > Best 73's,
> > F6HQZ,
> > Francois BERGERET,
> > France.
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