P25

[EricR]

I see activity outside of the normal 01-xxxx LCN range. What is the 09-xxxx LCN range and how does one monitor it? It uses the same frequencies so are these other slots? Still trying to figure out the P25 structure. Any ideas?

 

[slicerwizard]

They're Phase II voice calls.

 

[EricR]

Good to know. Thank you.

 

[natedawg1604]

They're Phase II voice calls.

What info. gave that away?

 

[GTR8000]

What info. gave that away?

The fact that the 09 bandplan entries contain two LCN's per frequency indicates that TDMA is in use.

09-0488 854.0625 = Slot 1
09-0489 854.0625 = Slot 2

The 01 bandplan entries are FDMA channels.

The 00 bandplan entries appear to be invalid. I would delete those, leaving only the 01 and 09 prefixed LCN's.

The best thing to do is to switch over to the Band Plan tab in Unitrunker to verify what is current broadcasting on that site. TDMA bandplan entries will show a 2 in the Slots column.

 

[SCPD]

The 00 bandplan entries appear to be invalid. I would delete those, leaving only the 01 and 09 prefixed LCN's.

Excellent advice. These single digit channel numbers are likely the result of a Unitrunker bug of applying data from an RR DB download.