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public:radio:svx_mobile [04/06/22 08:30 BST] – [Hardware] johnpublic:radio:svx_mobile [26/04/23 14:53 BST] (current) – removed john
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-<-[[.:start]] 
- 
- 
-====== Svx Mobile ====== 
- 
-=== Plan... === 
-To make a mobile hotspot that will provide access to SVXReflector and Echolink as well as a handy single-frequency parrot repeater. 
- 
-===== Hardware ===== 
- 
-Remains the same as the previous portable //hotspot// 
- 
-  * Raspberry Pi 
-  * CM108 soundcard 
-  * IC-2E or FT-60 
-  * MiFi router  
- 
-It will be installed in my vehicle, which also has a TM-D710 for APRS and voice comms. The hotspot/gateway will use a handheld radio, either an old IC-2E for 2m (only) or I might experiment with the FT-60 as the radio, to allow either 2m **or** 70cm to be used, as required. 
- 
-  * <todo>Add 5V regulator to power R.Pi from 12VDC</todo> 
-  * <todo>Put everything in a //grab-box// for portability</todo> 
- 
- 
-==== SVXLink Config ====  
- 
-No big changes.... 
- 
-  * Echolink Module enabled (switchable via DTMF commands) 
-  * Echolink using a [[public:linux:jave_jre|Private Proxy]] running on my VPS machine to enable incoming connections. 
- 
-=== Logic.tcl additions for switching EL on/off === 
- 
-Added to ''<...>/events.d/local/Logic.tcl'' 
- 
-<code tcl> 
-# This function can be used to implement your own custom commands or to disable 
-# DTMF commands that you do not want users to execute. 
-proc dtmf_cmd_received {cmd} { 
-  #global active_module 
- 
-  # Example: Ignore all commands starting with 3 in the EchoLink module. 
-  #          Allow commands that have four or more digits. 
-  #if {$active_module == "EchoLink"} { 
-  #  if {[string length $cmd] < 4 && [string index $cmd 0] == "3"} { 
-  #    puts "Ignoring random connect command for module EchoLink: $cmd" 
-  #    return 1 
-  #  } 
-  #} 
- 
-  # Handle the "force core command" mode where a command is forced to be 
-  # executed by the core command processor instead of by an active module. 
-  # The "force core command" mode is entered by prefixing a command by a star. 
-  #if {$active_module != "" && [string index $cmd 0] != "*"} { 
-  #  return 0 
-  #} 
-  #if {[string index $cmd 0] == "*"} { 
-  #  set cmd [string range $cmd 1 end] 
-  #} 
- 
-  # Example: Custom command executed when DTMF 99 is received 
-  if {$cmd == "99"} { 
-    puts "Executing external command" 
-    playMsg "Core" "online" 
-    exec /home/gm4slv/svx_ref_noel.sh & 
-    return 1 
-  } 
-  # Example: Custom command executed when DTMF 98 is received 
-  if {$cmd == "98"} { 
-    puts "Executing external command" 
-    playMsg "Core" "online" 
-    exec /home/gm4slv/svx_ref.sh & 
-    return 1 
-  } 
- 
-  return 0 
-} 
-</code> 
- 
-  * DTMF command ''99#'' will cause svxlink to restart with a different config, that **does not** have ModuleEchoLink enabled. 
-  * DTMF command ''98#'' will cause svxlink to restart with the standard config, the **does** have ModuleEchoLink enabled. 
- 
-=== Start with Echolink ===  
- 
-<code bash> 
-#!/bin/bash 
- 
-CFG=/usr/local/etc/svxlink/svxlink.conf 
-LOG=/home/gm4slv/svxlink.log 
- 
-sudo killall svxlink 
-sudo killall svxlink 
-sudo killall svxlink 
- 
-echo "25" > /sys/class/gpio/export 
- 
-sleep 2 
- 
-echo "out" > /sys/class/gpio/gpio25/direction 
- 
-sudo svxlink --daemon --logfile=$LOG --config=$CFG 
-exit 0 
- 
-</code> 
- 
-=== Start without Echolink === 
- 
-<code bash> 
- 
-#!/bin/bash 
- 
-CFG=/usr/local/etc/svxlink/svxlink_ref_noel.conf 
-LOG=/home/gm4slv/svxlink.log 
- 
-sudo killall svxlink 
-sudo killall svxlink 
-sudo killall svxlink 
- 
-echo "25" > /sys/class/gpio/export 
- 
-sleep 2 
- 
-echo "out" > /sys/class/gpio/gpio25/direction 
- 
-sudo svxlink --daemon --logfile=$LOG --config=$CFG 
-exit 0 
- 
-</code> 
- 
-It's probable that I'll configure the initial start ''@reboot'' to be //without// Echolink  
- 
-''crontab''  ->  ''@reboot sleep 30 && sudo -u gm4slv /home/gm4slv/svx_ref_noel.sh >/dev/null 2>&1'' 
- 
-and then only enable the Echolink module (with ''98#'') when I want to be available on Echolink, or to use it myself.  
- 
-Using a PROXY server for connecting to Echolink is necessary because it's not possible to control external firewall/port forwarding when using the MiFi 4G router for internet access. Connecting ''direct'' to Echolink, without the ''proxy'' still allows outgoing Echolink connections. 
- 
-Rather than relying on other ''PUBLIC'' Echolink proxies I though it would be wise to install and run a proxy server myself, on the VPS machine. It turned out to be easier than I thought and the basic steps are [[public:linux:jave_jre| here]] 
- 
- 
-=== Parrot === 
- 
-I imagine being able to use the Parrot feature as a temporary single-frequency repeater perhaps for emergency use?  
- 
-I'll experiment.... 
- 
- 
- 
-==== Page Info ==== 
- 
- 
---- //John Pumford-Green 03/06/22 17:59// 
- 
-Page last updated: ~~LASTMOD~~ 
- 
-{{tag>}} 
- 
  
public/radio/svx_mobile.1654327833.txt.gz · Last modified: 06/03/25 06:49 GMT (external edit)