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--- public:radio:allstar:allstar_nxdn [10/06/25 18:15 BST] – john
+++ public:radio:allstar:allstar_nxdn [10/06/25 18:54 BST] (current) – [The main Things] john
@@ Line 35: / Line 35: @@
 </code>
-===== Updating DVSwitch Hostfiles =====
-  * DVSwtich keep its hostfiles in ''/var/lib/mmdvm'' and updates via ''cron.daily/DVSM_Update'' which calls ''/opt/MMDVM_Bridge/dvswitch.sh update''
-  * This tries to download hostfiles from various places using ''curl''
-  * It seems to fail most of the time due to a SSL problem
-  * A workaround is to put "insecure" in root's ~/.curlrc
-<code>
+===== The main Things =====
-sudo su -
+  * Make sure ''Analog_Bridge.ini'' has the correct txPort and rxPort in its [USRP] section
-echo insecure >> ~/.curlrc
+<code ini>
+[USRP]
+address = 127.0.0.1           ; IP address of USRP partner (Analog_Reflector, Allstar/Asterisk or another Analog_Bridge)
+txPort = 31001                ; Transmit USRP frames on this port
+rxPort = 34001                ; Listen for USRP frames on this port
+</code>
-/opt/MMDVM_Bridge/dvswitch.sh update
+  * It should match Asterisk's private node as defined in ''/etc/asterisk/rpt.conf'' - in this case it's [1398]
+<code ini>
+[1398]
+rxchannel = USRP/127.0.0.1:34001:31001 ; Use the USRP channel driver. Must be enabled in modules.conf
+ ; 127.0.0.1 = IP of the target application
+ ; 34001 = UDP port the target application is listening on
+ ; 32001 = UDP port ASL is listening on
 </code>
-===== The main Things =====
   * Make Sure ''Analog_Bridge.ini'' has the correct txPort and rxPort in its [AMBE] section
-    * should match the ports in ''DVSwitch.ini'' [NXDN] section
+<code ini>
+[AMBE_AUDIO]
+address = 127.0.0.1                     ; IP address of xx_Bridge
+; For DMR  - match the ports set in DVSwitch.ini
+;txPort = 31103                          ; Transmit TLV frames to partner on this port
+;rxPort = 31100                          ; Listen for TLV frames from partner on this port
+; FOr NXDN - match the ports set in DVSwitch.ini
+txPort = 33103                          ; Transmit TLV frames to partner on this port
+rxPort = 33100                          ; Listen for TLV frames from partner on this port
+ambeMode = NXDN                          ; DMR, DMR_IPSC, DSTAR, NXDN, P25, YSFN, YSFW (encode PCM to this format)
+</code>
+  * should match the ports in ''DVSwitch.ini'' [NXDN] section
+<code ini>
+; Configure the NXDN Partner
+; Audio format is AMBE 72 bit
+[NXDN]
+address = 127.0.0.1             ; Address to send AMBE TLV frames to (export)
+txPort = 33100                  ; Port to send AMBE TLV frames to (export)
+rxPort = 33103                  ; Port to listen on (import)
+</code>
   * Disable [DMR] in ''MMDVM_Bridge.ini''
@@ Line 66: / Line 98: @@
 </code>
-  * Enable [NXDN] in ''MMDVM_Bridge.ini''
+  * Enable [NXDN] in ''MMDVM_Bridge.ini'' and set your own NXDN ID number
 <code ini>
@@ Line 82: / Line 114: @@
 </code>
-  *
+  * Set Callsign in ''NXDNGateway.ini''
+<code ini>
+[General]
+Callsign=GM4SLV
+Suffix=NXDN
+</code>
+  * I don't know what ''Suffix'' means, I left it as found
+  * Set the NXDN talkgroup in ''Analog_Bridge.ini''
+  * NXDN Talkgroups are listed here : [[https://www.pistar.uk/nxdn_reflectors.php]]
+    * A Talkgroup actually seems to specify a particular reflector IP address/Hostname & UDP port
+    * These are retrieved by ''NXDNGateway'' from the hostfile : ''/var/lib/mmdvm/NXDNHosts.txt''
+    * Setting the ''txTG=23551'' in ''Analog_Bridge.ini'' causes ''NXDNGateway'' to make a connection to the relevant reflector when you send traffic by keying up.
+    * For example TG23551 (Scot-Multi) appears in ''NXDNHosts.txt'' as:
+<code>
+   nxdnscotland.ddns.net   41400
+</code>
+  * Having ''txTG=23551'' in ''Analog_Bridge.ini'' causes DVSwitch to connect, and start to flow packets, with ''nxdnscotland.ddns.net:41400''
+  * Another source of info [[https://dvref.com/nxdn/]]
+    * TG23551 : [[https://dvref.com/nxdn/nxdn-23551]]
+{{ :public:radio:allstar:tg23551.jpg?direct&600 |}}
+==== Updating DVSwitch Hostfiles ====
+  * DVSwtich keep its hostfiles in ''/var/lib/mmdvm'' and updates via ''cron.daily/DVSM_Update'' which calls ''/opt/MMDVM_Bridge/dvswitch.sh update''
+  * This tries to download hostfiles from various places using ''curl''
+  * It seems to fail most of the time due to a SSL problem
+  * A workaround is to put "insecure" in root's ~/.curlrc
+<code bash>
+gm4slv@node481482:~$ sudo su -
+root@node481482:~# echo insecure >> ~/.curlrc
+root@node481482:~# /opt/MMDVM_Bridge/dvswitch.sh update
+</code>
+++++ DVSwitch.ini |
 ===== DVSwitch.ini =====
@@ Line 186: / Line 263: @@
 </code>
+++++
+++++ MMDVM_Bridge.ini |
 ===== MMDVM_Bridge.ini =====
@@ Line 309: / Line 390: @@
 GatewayPort=14020
 </code>
+++++
+++++ NXDNGateway.ini |
 ===== NXDNGateway.ini =====
@@ Line 391: / Line 476: @@
 Enable=1
 Port=6075
 </code>
+++++
+++++ Analog_Bridge.ini |
 ===== Analog_Bridge.ini =====
@@ Line 502: / Line 590: @@
 </code>
+++++