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Configuring tables for UHF/VHF Systems in the Pro-96:
If you are monitoring APCO P25 systems that use the standard 800Mhz
identifiers (Base of 851.00625Mhz, Spacing 0.00625) then there is no need to
program in tables into the radio.
If you are monitoring a system that uses different identifiers, you will need to use
the multi-table option in the radio to properly track the system.
APCO P-25 systems can have up to 16 identifiers. Each identifier contains the
information needed by the radios on the system to calculate transmit and receive
frequencies needed to communicate on the system. Identifiers are made up of a
base frequency, channel spacing, transmit offset, and channel bandwidth.
A typical identifier table for 800Mhz APCO P25 systems would look like the
following:
ID Base Spacing TX Offset BandWidth
0 851.00625
0.00625
-45.00000
0.00625
On a Federal UHF system, a typical identifier table might look something like this:
ID Base Spacing TX Offset BandWidth
0 851.00625
0.00625
-45.00000
0.00625
2 406.00000
0.01250
10.00000
0.01250
On a VHF System, you may see something like this:
ID Base Spacing TX Offset BandWidth
0 851.00625
0.00625
-45.00000
0.00625
1 762.00000
0.00625
30.00000
0.00625
2 136.00000
0.01250
-5.00000
0.01250
3 136.00000
0.01250
-5.10000
0.01250
4 136.00000
0.01250
-5.20000
0.01250
5 136.00000
0.01250
-3.00000
0.01250
6 136.00000
0.01250
-4.50000
0.01250
7 136.00000
0.01250
3.25000
0.01250
8 136.00000
0.01250
3.00000
0.01250
9 136.00000
0.01250
4.50000
0.01250
These identifiers give you the information needed to make the Pro-96 properly
track and monitor these systems. The Pro-96 has only 6 available table slots
where the radio systems could use up to 16 identifiers. The key is to have
Pro96Com monitor the specific towers you wish to monitor, and make a note of
which identifiers are in use on those particular towers. You would then calculate
the values needed for the tables.
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