User Defined Fleet Maps
Type I Programming Information
When a Type I system is designed, the address information for all the IDs is divided into 8 equal
sized blocks, numbered 0–7. When you program your scanner to track a Type I system, you must
select a size code for each of these blocks. When you have assigned a size code to all 8 blocks,
you’ll have defined the Fleet Map for the system you’re tracking. Each size code determines the
number of Fleets, Subfleets, and IDs each block will have. For example, a size code of S-4 has one
Fleet, which is divided into 16 separate Subfleets, and it has a total of 512 individual IDs.
When a block is assigned a size code, the Fleet or Fleets created within the block are assigned a
Type I ID. The way these IDs display on your scanner depend on the block number and the block’s
size code. When a Type I ID displays, the leftmost digit represents the block which contains the ID.
The next two digits identify which Fleet is active, and the last digit(s) identifies the Subfleet.
The details concerning how the size codes are selected by a Type I System designer are highly
dependent on the specific needs of the system’s users. Some organizations may want many
subfleets with only a few radios each, while another organization may want only a few subfleets with
many radios each. Your task is to program your fleet map with the same size code assignments as
the trunked system. If you do this accurately, you’ll track all the Fleet-Subfleet combinations used by
the system. In other words, you’ll hear complete communications while monitoring a trunked system.
Preset Map E1P13
Size Code
S3
S3
S11
S4
S4
S0
S0
Block
1
0
2
3
4
5
6
7
S0
Preset Map E1P14
Size Code
S3
S4
S10
S4
S4
S4
S12
Block
1
0
2
3
4
5
6
7
--
Preset Map E1P15
Size Code
S4
S4
S4
S11
S11
S0
S12
Block
1
0
2
3
4
5
6
7
--
Preset Map E1P16
Size Code
S10
S3
S10
S11
S0
S0
S12
Block
1
0
2
3
4
5
6
7
--
4 05-1
2
Block
(1 digit)
Subfleet
(1 or 2 digits)
Which Fleet
within the Block
(2 digits)
58
