User Defined Fleet Maps

Type I Programming Information

When a Type I system is designed, the address
information for all the IDs is dividedinto 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’llhave 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, andit 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’lltrack all the
Fleet-Subfleet combinations used by the system. In other
words, you’ll hear complete communications while
monitoring a trunked system.
405-12
Block
(1 digit) Subfleet
(1 or 2 digits)
Which Fleet
within the Block
(2 digits)
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