Motorola fleet maps

Preset Fleet Maps

The scanner contains 16 pre-programmed fleet maps you can select. The table below gives the size code for each block of the preset fleet maps:

Block number 0 1 2 3 4 5 6 7
Preset 1 11 11 11 11 11 11 11 11
Preset 2 4 4 4 4 4 4 4 4
Preset 3 4 4 4 4 4 4 12
Preset 4 12 4 4 4 4 4 4
Preset 5 4 4 12 4 4 4 4
Preset 6 3 10 4 4 12 12
Preset 7 10 10 11 4 4 4 4 4
Preset 8 1 1 2 2 3 3 4 4
Preset 9 4 4 0 0 0 0 0 0
Preset 10 0 0 0 0 0 0 4 4
Preset 11 4 0 0 0 0 0 0 0
Preset 12 0 0 0 0 0 0 0 4
Preset 13 3 3 11 4 4 0 0 0
Preset 14 4 3 10 4 4 4 12
Preset 15 4 4 4 11 11 0 12
Preset 16 3 10 10 11 0 0 12

Custom Fleet Maps

To program a custom fleet map, select Custom under the Edit Fleet Map option. Then, select the appropriate size code for each block. Remember, not all size codes are available for all blocks:

Block Valid Size Codes
Block 0 0 - 14
Block 1 0 - 13 (14 not valid)
Block 2 0 - 13 (14 not valid)
Block 3 0 - 13 (14 not valid)
Block 4 0 - 13 (14 not valid)
Block 5 0 - 12 (13, 14 not valid)
Block 6 0 - 12 (13, 14 not valid)
Block 7 0 - 11 (12, 13, 14 not valid)

How Fleet Maps Work

Blocks

Talk Group IDs can range from 0 to 65,535. To make it easier to handle this many IDs, the system divides the TGID range into 8 equal blocks :

Block Starting ID Ending ID
Block 0 0 8191
Block 1 8192 16383
Block 2 16384 24575
Block 3 24576 32767
Block 4 32768 40959
Block 5 40960 49151
Block 6 49152 57343
Block 7 57344 65535

Size Codes

Each block is assigned a size code based on the way the control channel sends the TGID data. Note that codes 12, 13, and 14 take up more than one block:

Size Code Fleet / SubFleet / ID Number of Blocks Needed
0 (as Type II ID) 1
1 128 / 4 / 16 1
2 16 / 8 / 64 1
3 8 / 8 / 128 1
4 1 / 16 / 512 1
5 64 / 4 / 32 1
6 32 / 8 / 32 1
7 32 / 4 / 64 1
8 16 / 4 / 128 1
9 8 / 4 / 256 1
10 4 / 8 / 256 1
11 2 / 16 / 256 1
12 1 / 16 / 1024 2
13 1 / 16 / 2048 4
14 1 / 16 / 4096 8

This page applies to the following scanner(s): BCD996XT BCT15X BCD396XT BC346XT BC346XTC Users Guide