Sending NAC

Help with P25 issues
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N8JDM
Posts: 8
Joined: Tue Jan 22, 2019 1:05 am

Sending NAC

Post by N8JDM » Tue Jan 29, 2019 2:00 am

Another P25 question.... My sole P25 user reports that PiStar/MMDVM does not appear to be sending back NAC (set to 293) to open the squelch. He says it only opens if the radio is in monitor mode or if he sets the incoming NAC to $F7E. Does MMDVM encode the outgoing stream with a NAC? I don't see any tunables for this other than just setting the NAC.

N8JDM
Posts: 8
Joined: Tue Jan 22, 2019 1:05 am

Re: Sending NAC

Post by N8JDM » Wed Jan 30, 2019 3:19 am

So, this is a somewhat red herring. It appears the repeater is sending out NAC 293 according to a P25 test instrument (my neighbor is having a lot of fun with this now). It's just not opening the squelch. That's probably on the radio end.

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