[App_rpt-users] iaxRPT does not receive

Steve Agee n5zua at earthlink.net
Mon Dec 12 08:38:22 UTC 2011


Typically 9600 baud is equal to discriminator audio and 1200 baud is equal to de-emphasized / processed audio.

N5ZUA
  ----- Original Message ----- 
  From: Ron Morell 
  To: George Csahanin 
  Cc: app_rpt-users at ohnosec.org 
  Sent: Monday, December 12, 2011 1:13 AM
  Subject: Re: [App_rpt-users] iaxRPT does not receive


  George, 
  I see I did not completely answer your questions about he audio so here is the terminal run on the tests you suggested.
  test*CLI> radio tune rxsquelch
  Current Signal Strength is 583
  Current Squelch setting is 740
  test*CLI> radio tune rxnoise
  tune rxnoise maxtries=12, target=27000, tolerance=2750
  tries=0, setting=2, meas=6144
  tries=1, setting=9, meas=20442
  tries=2, setting=12, meas=25897
  tries=3, setting=12, meas=25857
  tries=4, setting=12, meas=25885
  tries=5, setting=12, meas=25832
  tries=6, setting=12, meas=25798
  DONE tries=6, setting=750, meas=25798, sqnoise=13342
  INFO: RX INPUT ADJUST SUCCESS.
  Rx noise input seems sufficient for squelch.

  The 9600 baud data port looks to be the least filtered audio out of the radio and so I selected that for the source.  The speaker audio and 1200 baud audio looked to be filtered.  It will take a while to determine how good the receive audio is, but this is a test setup for learning purposes.  So problems found and solved here in the shack are worth it.  Then when the knowledge is applied to the actual repeater controller and VoIP links, maybe it will all work and sound good.

  Thanks again.
  73,
  Ron KA7U


  On 12/11/2011 09:58 PM, George Csahanin wrote: 
    Ron, you're describing two different things here...or I'm not decoding your words. Does node 28174 that you have work ok, connect to outside world, make contacts that work? If you don't know that the node is working right I'd hold off troubleshooting iaxrpt till I knew that teh node itself was ok. 

    If your node is ok then distribution, URI wiring, ptt connections, etc really are not a matter. iaxrpt should connect. 

    Try, from command line:

    rpt showvars 28174

    Mine, no received signal:

    radio*CLI> rpt showvars 2360
    Variable listing for node 2360:
       RPT_TXKEYED=0
       RPT_NUMLINKS=3
       RPT_LINKS=3,T27849,T27891,T3341697
       RPT_NUMALINKS=2
       RPT_ALINKS=2,27849TU,3341697TU
       RPT_ETXKEYED=0
       RPT_RXKEYED=0
       RPT_AUTOPATCHUP=0
        -- 8 variables


    Here's witht he repeater keyed, signal on input:

    radio*CLI> rpt showvars 2360
    Variable listing for node 2360:
       RPT_ETXKEYED=1
       RPT_TXKEYED=1
       RPT_RXKEYED=1
       RPT_NUMLINKS=3
       RPT_LINKS=3,T27849,T27891,T3341697
       RPT_NUMALINKS=2
       RPT_ALINKS=2,27849TU,3341697TU
       RPT_AUTOPATCHUP=0
        -- 8 variables

    See the two highlighted? 

    I'd be curious if your receiver is in an unsquelched mode and timed out...

    Also rpt stats 28174

    SEe if you're timed out..??

    I connected to your node about 10:50PM central, and it kept sending unkeys at about 5 second intervals. So something's not configured right in general there, and I'd check all that stuff before attempting iaxrpt. 

    I have no idea about the pins on the URI, I modified my own USB fob, and/or use the paralell port for signalling. However, I think you are speaking of the radio audio oiut when you speak of 9600 baud data out. Are you certain that there is no filtering at all at that point? 

    Another command is radoi tune rxsquelch

    The numbers should be well between 0 and 999, and the squelch setting should be about 100-125 higher than signal strength. If your signal strength is showing very thigh...999  I'd say the audio calibrations were in error or your audio output is filtered in some way. It really needs to be discriminator out. 


    What do you have duplex set to in rpt.conf? 

    GeorgeC
    W2DB





    ----- Original Message ----- 
    From: "Ron Morell" <ron at morell.us>
    To: <app_rpt-users at ohnosec.org>
    Sent: Saturday, December 10, 2011 5:20 PM
    Subject: [App_rpt-users] iaxRPT does not receive


    >I need help.  I have iaxRPT installed on a Windows XP netbook.  I have
    > Asterisk+app_rpt using the AllStar Link node number 28174.  The setup is
    > the ACID CENTOS install and it is using a GMK URI.  The wiring from the
    > URI to Radio is:
    > radio ground to URI pin 13
    > radio PTT to URI pin 1
    > radio receive to URI pin 21  ;This is the 9600 baud data audio output
    > radio microphone to URI pin 22
    > radio squelch is not connected
    > 
    > I keep checking my wiring on the pins, but don't find fault with the
    > wiring... I always doubt my wiring. Hi Hi
    > 
    >>From iaxRPT it will send out audio and tones to the radio transmitter
    > just fine.  When the radio receiver is sending voice and tones back to
    > the iaxRPT application nothing happens nothing is heard.  The handheld
    > used to talk to the remote radio is using ctcss 100Hz tones.  The remote
    > radio is a Yaesu FT-7800R using "enc dec" ctcss tone 100Hz.
    > 
    > This is the setup in iax.conf
    > ; IAXRPT Access
    > 
    > [gui]
    > type=user
    > context=radio-gui
    > auth=md5
    > secret=password
    > host=dynamic
    > disallow=all
    > allow=ulaw
    > allow=gsm
    > transfer=no
    > 
    > This is the setup in extensions.conf
    > ; Context for IAXRPT Access
    > 
    > [radio-gui]
    > exten => 28174,1,rpt(28174|X)
    > ; The X option passed to the Rpt application disables normal security
    > checks.
    > ; see http://ohnosec.org/drupal/node/58
    > 
    > This is the setup in usbradio.conf
    > [general]
    > 
    > [usb]
    > hdwtype=0          
    > rxboost=1             
    > rxctcssrelax=1         
    > txctcssdefault=100.0   
    > rxctcssfreqs=100.0     
    > txctcssfreqs=100.0    
    > ;rxctcssoverride=0      ;
    > carrierfrom=dsp       
    > ctcssfrom=dsp  
    > rxdemod=flat  
    > txprelim=no           
    > txlimonly=yes   
    > txtoctype=notone       
    > txmixa=composite      
    > txmixb=no      
    > invertptt=0          
    > duplex=0               
    > rxondelay=20          
    > 
    > I have port 4569UDP forwarded to the Asterisk+app_rpt computer and that
    > seems to work out fine:
    > test*CLI> iax2 show registry
    > Host                  dnsmgr  Username    Perceived             Refresh 
    > State
    > 67.215.233.178:4569   N       28174       174.27.6.80:4569           60 
    > Registered
    > test*CLI>
    > 
    > The Windows XP computer with iaxRPT has an exception in the firewall for
    > iaxRPT.exe and I have explicitly opened port 4569UDP and have even tried
    > it with the firewall off.  The iaxRPT setup is expecting to use port
    > 4569UDP.
    > 
    > So what magic words are out of order?  I'm not seeing the problem.
    > Ron Morell
    > KA7U
    >


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