[App_rpt-users] Question regarding interfacing to a Kenwood Nextedge Repeater NXR-710/810

[Mike/W5JR]

Don/Lu, I'm also using the duplex=3 setting and local repeat on my main node as I always have a talkback monitor receiver going (and am able to hear duplex barge-ins).  Having operated full duplex mobile since the late 60's, I can't imagine not being duplex - I even set up the local club's 2m repeater with 927 MHz talkback.  None of my current repeaters have an internal "switchable" repeat path, so I'm of little help there.  My "local" controller is one of the NHRC-4 controllers, modified to keep the port 2 RX audio (and telemetry audio)  from directly feeding the port 2 TX. Unfortunately, DTMF mute has to be disabled on the -4, so that might deter others from using this method.  In my case I'm on 900 MHz, so not as many folks are "listening".

tnx
Mike Roden / W5JR
Mgr - Five Jug Ranch

> On Dec 30, 2013, at 1:47 PM, Don Russell <drussell at gpgsecure.com> wrote:
> 
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> Actually there is a version of app_rpt that can do DCS, you need to talk to Steve W9SH from xelatec. The XIPAR version has DCS
> Encode/Decode built in. Any particular reason you want to use DCS not PL? I still think you should let app_rpt handle the emphasis
> curve. I think the linking audio is way better that way. Feed the audio in on pin 8 (Data) which is direct to modulator and let
> asterisk pre-emphasize limit the audio, you should be fine.
> 
> If you want to let the repeater internal controller handle the repeat audio, set duplex=3 in rpt.conf [node] stanza.
> That way you the link/autopatch audio is full duplex, and you still get the courtesy tone/telemetry/link audio from the controller
> The internal controller will handle the repeat audio in between. In that config the repeater will handle the DCS encode/decode.
> You will need to program one of the output pins on the 25 pin to change state on proper PL/DCS, and wire that to the URI PL/COR
> detect pin. then set in usbradio ctcssfrom=usb not DSP.
> 
> You can use the deemphasized audio in/out if you want to, you need to change the settings in the usbradio.conf to reflect that. I
> strongly suggest you let app_rpt do the audio processing as it does a better job than the repeaters built in emphasis/limiting
> circuitry. The direct flat audio path is also the one you would use for digital audio like one of the German DVRPTR boards.
> 
> I guess my first email was sent direct not via the list. I suggested that he make a couple changes in the usbradio.conf, use the
> direct flat in/out pins, and let app_rpt do the encode/decode of PL using DSP and bypass the internal controller entirely on 1
> channel. Program in a second channel that is internal controller repeat, and use a GPIO from the URI to change between channels,
> or manually do so via an external DTMF decoder on a control receiver or attached to the repeater. use something like DTMF A to toggle
> channels. So if the linux box pukes, a DTMF "A" will get you back up to at least local repeat. That is exactly what I did on a
> VXR-9000 I setup for my old ham club.
> 
> Don W9DRR
> 
> Enjoy being warm guys, it was -11F this morning here in the chilly state of Iowa.
> 
>> On 12/30/2013 07:35 AM, Ed Wilhelm wrote:
>> Haven't hooked up a URI to one but have done some other things. Your transmit audio should be "microphone" audio, not
>> pre-emphasized. Pin 9. Rx audio is at 11, squelched. PTT at 16 and TOR can be assigned under function port to whatever pin you
>> like.
>> 
>> In KPG-129D go to channel edit and set operation mode to duplex not repeater. Now the URI should control and handle audio.
>> 
>> Should work on analog or digital. Use simple USB not dsp.
>> 
>> Ed W8VT Nodes 27849, 29496
>> 
>> 
>> 
>>> On 12/29/2013 10:28 PM, Lu Vencl wrote:
>>> 
>>> I know this is a shot in the dark and I am probably the only one trying this, but is there by chance anyone that has
>>> successfully interfaced a URI to a Kenwood NEXEDGE® Repeater NXR-710/810?
>>> 
>>> My challenge is this.
>>> 
>>> 1.       Can’t seem to find a way to feed in pre-emphasize TX audio.. Not a show stopper, but sure would be nice if I could.
>>> I can always run regular mode.. Tried the TX data input but got no audio
>>> 
>>> 2.       When using external PTT, it mutes the TX audio for some reason. Seems as when the repeater is receiving audio, and
>>> the URI bring PTT low on the External PTT, it mutes the audio completely. You hear no repeat audio.
>>> 
>>> 
>>> 
>>> I am using in rpt.conf,  Duplex =1.. If I do Duplex =0, then I get the internal repeat audio, but it does not take advantage
>>> of the Allstar processed audio such as audio delay and DTMF muting.
>>> 
>>> 
>>> 
>>> There has to be a better way and has hoping someone has already succeeded in this challenge. I can email you the programming
>>> file to the repeater if you wish.
>>> 
>>> 
>>> 
>>> Thanks in advance.
>>> 
>>> Lu, KA4EPS
>>> 
>>> 
>>> 
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>> 
>> 
>> 
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