[App_rpt-users] Switching from carrier access to CTCSS access - Asterisk DIAL using URI interface

Tue Oct 27 17:13:14 UTC 2015

OK then you can use DSP to decode tones.

You should have something similar to this to decode cor and pl from DSP 
in the usbradio.conf file:

[usb2417]

hdwtype=0
rxboost=1
txboost=1
rxctcssrelax=1
txctcssdefault=103.5    ;default pl tone
rxctcssfreqs=103.5    ; rx pl tone to decode
txctcssfreqs=103.5    ; tx pl tone to encode if used
;rxctcssoverride=0
carrierfrom=dsp        ; decode from discriminator
ctcssfrom=dsp            ; decode tones from discriminator
rxdemod=flat            ; neded to be flat for dsp decode
txprelim=yes
txlimonly=no
txtoctype=phase
txmixa=voice            ; transmit voice only, no tx tone
txmixb=no
invertptt=0
duplex=0    ; simplex node set to 1 if full duplex needed.
rxondelay=0
rxnoisefiltype=0
eeprom=0

Jon VA3RQ

On 10/27/2015 11:48 AM, Dave Newmyer wrote:
> Thanks for the reply, Jon!
>
> I checked, and in my modules.conf file, I found the following :
>
> Channels
>
> noload => chanusb.so
>
> load => chan_usbradio.so
>
>
> Am I looking in the correct area?
>
> Thanks,
>
> Dave N
>
>
>
> On 10/27/2015 8:31 AM, Jon Rorke wrote:
>> Are you using chan_simple_usb or chan_USB _radio for the channel 
>> driver? It sounds like you are using simple USB.
>>
>> If using chan_simple_usb then the radio must provide a hardware 
>> signal to the URI on the PL input pin. I think its pin 8. So your 
>> radio must provide a pl decode  line that should be connected to the 
>> PL input on the URI.
>>
>> If thje radio can supply both a COR and a separate PL decode line 
>> then connect the COR to pin 7 on the URI and pl decode to Pin 8.
>>
>> Then you must set up the polarity on the uri to match that of the 
>> radio. If the line from the radio decodes pl, then goes low then set 
>> in Simple_usb.conf  ctcss_from = USB invert.
>>  If the signal goes hi when decoding the pl tone then set ctcss_from  
>> = USB.
>>
>> Carrier_from must also be set correctly polarity. sounds like you 
>> were using that so its ok.
>>
>> But if your radio is reprogrammed to give a combined COR/PL decode 
>> (in other words the line only goes active with a signal that opens 
>> the radios squelch and has the correct pl tone) then it could be 
>> connected to the COR input pin 7 and leave it as is.
>>
>> what you need to determine if your COR/ PL line is going active with 
>> the correct pl tone into the radio.
>> if not then you need to configure the radio so that it does. you may 
>> need to ground  hang up pin to get the pl decode to work.
>> I'm not up to speed on the M120. Others may comment in more detail on 
>> what you can do for the accessory pins and programming.
>>
>> save and restart. see if it decoding tones then.
>>
>> Also set RX audio to "Flat" if connected to discriminator.
>>
>> In simple USB there is no DSP decoding of squelch or pl tones from 
>> discriminator. this mode relies on the radio to handle those jobs.
>>
>> If you want the r node to do all that decoding then you must change 
>> the node to use Chan_usb_radio driver. then you can set up the node 
>> to decode the pl tones in SW and do squelch decoding too.
>>
>> Jon VA3RQ
>>
>> On 10/27/2015 9:44 AM, Dave Newmyer wrote:
>>> Thanks for replying!  Yes, jumper P551 is set to flat audio.  I am 
>>> working OK using carrier access, just not able to implement CTCSS 
>>> access.
>>>
>>> On 10/26/2015 10:29 PM, Steve Agee wrote:
>>>> Did you change or check jumper P551 on the logic board of the radio 
>>>> to ensure you are sending DISCRIMINATOR audio to the U.R.I. ?  If 
>>>> the jumper is in the other position (speaker audio) then it won't 
>>>> work.
>>>>
>>>> N5ZUA
>>>>
>>>> On 10/26/2015 6:52 PM, Dave Newmyer wrote:
>>>>> Hello,
>>>>>
>>>>> I recently updated from Asterisk ACID to Asterisk DIAL due to 
>>>>> hardware (CPU) problems.  The install went well, and I am now able 
>>>>> to use the Lenovo CPU that I had trouble with (Sept 7, 2015).
>>>>>
>>>>> I was recently informed that it would be preferable if I were to 
>>>>> use CTCSS access on my node instead of  carrier access, and I have 
>>>>> been attempting to do so, first by activating ctcss via dsp in the 
>>>>> usbradio.conf file, then by reprogramming my Mot M120 radio for a 
>>>>> channel with carrier access, or the alternate channel with ctcss 
>>>>> access and adding a line from pin 8 of the radio accessory 
>>>>> connector to pin 7 of the URI.
>>>>>
>>>>> In Radio-Tune-Menu, choice 4  Auto-Detect Rx CTCSS Level Value 
>>>>> passes, but if I try performing a DTMF command like *81, I get no 
>>>>> reply from the node.
>>>>>
>>>>> Any ideas as to what I should try next?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Dave N
>>>>> N0KM
>>>>>
>>>>>
>>>>>
>>>>>
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