BCD325P2/BCD996P2: Firmware update breaks NAC in search on BCD325/996P2

[mjf]

I just did the 1.11.06 firmware update on my BCD996P2 and noticed that it no longer shows the NAC when a search stops on a P25 control channel. It still shows it on the voice channels. I tried several P25 systems and it behaves the same for all of them.

I hadn't updated my BCD325P2 yet so I checked on it and as expected, it shows the NAC for either the control channel or a voice channel. I just did the firmware update on the 325 and now it no longer shows the NAC on the control channel. It just alternates between DAT and LNK.

Edit: I rolled back the firmware and it's 1.11.06 that breaks it. 1.11.04 is fine.

 

[buddrousa]

Good info to know
@JoeBearcat

 

[dmfalk]

I could be wrong, but I don't think P25 control channels have NACs. What would be the point?

 

[GTR8000]

I could be wrong, but I don't think P25 control channels have NACs. What would be the point?

They do, and it's to prevent co-channel interference. Motorola ASTRO 25 systems, for example, use a derivative of the System ID as the NAC. So for example SysID A66 uses NAC A61 for Site 1 and NAC A62 for Site 2.

 

[enosjones]

u need to re add them i think it usually put the nac and either changed it to 0 or ran 0. u probably got to just re do the settings

 

[JoeBearcat]

This is being evaluated by Uniden.