[arm-allstar] Delay with Kenwood NXR710 and Hamvoip Node

[ve3rwj at winsystem.org]

I'm unsure where to look first for a solution.

 

Problem:

With a single Kenwood NXR710 repeater using a connected Allstar node as
controller, running Hamvoip, how much delay should I hear between what I'm
saying into my HT and what I'm hearing come back from the repeater?

I imagine there is a slight delay in the repeater internally, plus some
delay as audio passes to and from the node, but it shouldn't be this long,
should it? That sounds like around half a second!

 

Here's an audio example recorded on my iPhone. It starts to feed back
because the second radio is being picked up by the first, which gives a
clearer idea of the timing here.

You'll also hear a little of my voice repeated when I quickly unkey.

https://www.dropbox.com/s/iiyjn87xx1yc88o/KenwoodNXR710_and_HamvoipDELAY.wav
?dl=1

 

What we are trying to do is have functions, ID and other timing handled by
the Allstar node. We want the Kenwood to stay fairly dumb comparatively,
handling RX and TX, CTCSS decode/encode etc.

Is there perhaps something in the Kenwood we forgot to turn off that is
delaying everything? Or something I need to adjust in Hamvoip?

 

The only delay I've adjusted on the Hamvoip node really is RXAUDIODelay, to
eliminate squelch tail from being broadcast, and I have it set to 10 or
about 200 MS.

 

Ideas welcome.

 

Thanks

 

Chris