Somerset County 700 MHz P25

[W2SJW]

Guys,

Since I no longer live in the area, I need a favor from a fellow member - I need someone with Pro96com to run the 700 system for a day & confirm what TGID's are regularly being broadcast on that site (besides the 2 TDMA simulcasts).

If you could post, or PM me the log file, that would be greatly appreciated!


Sent from my Galaxy S4 via Tapatalk 4

 

[mdragon]

Recording for an hour, here's the data so far.

 

[mdragon]

from 9:30-12:30

 

[GTR8000]

I believe he was looking for logs on the 700 MHz site, not the UHF site.

 

[mdragon]

I believe he was looking for logs on the 700 MHz site, not the UHF site.

Thanks I read right past that. 700 it is, recording now.

 

[mdragon]

Take 3 this time on 700

 

[W2SJW]

Thanks! This is exactly what I was looking for. The channel ID table also confirmed what I thought I saw in my own limited monitoring before I moved out of the area - that table ID #3 is not the standard 851.00625 that many P25 systems use, it's 851.0125.

I gotta go back now & look at my NJICS logs from the last few months...

 

[mdragon]

One last dump of the 700, about another 45 minutes of data.

 

[GTR8000]

The standard bandplan for 700/800 TDMA systems is as follows:

00 - 851.00625 - 6.25 - 1 slot FDMA
01 - 762.00625 - 6.25 - 1 slot FDMA
02 - 851.01250 - 12.5 - 2 slot TDMA
03 - 762.00625 - 12.5 - 2 slot TDMA

There's nothing unusual about the Somerset 700 site, it's the same bandplan as the NJICS, Rockland's system, etc.

 

[W2SJW]

Thanks Chris!

I did not know that...

 

[GTR8000]

No problem, Scott.

There are some exceptions to the rule. The Waterbury, CT system uses a base of 851.0625 for table 00 instead of 851.00625, for whatever reason.

Waterbury Trunking System, Waterbury, Connecticut