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seems. Select a size code for a block, and then press
Scan. Now listen to the communications. If you decide
you are receiving most of the replies to the
conversations with ID’s assigned to the block you just
programmed, then you’ve probably selected the right
size code and can work on the next block of the map.
Finally, for most public safety systems there are some
size codes which are more common. S-3 and S-4 are
probably the most common, followed by S-10, S-11,
and S-12.
Size Code Restrictions
If you select size code S-12, S-13, or S-14, there are
some restrictions as to which blocks can be used for
these codes.
S-12 can only be assigned to Blocks 0, 2, 4, or 6.
S-13 can only be assigned to Blocks 0 and 4.
S-14 can only be assigned to Block 0.
Since these size codes require multiple blocks, you
will be prompted for the next available block when
programming a fleet map. For example, if you assign
Block 0 as an S-12, you will be prompted for b2, the
next block available, instead of b1. And if you assign
Block 0 as an S-14, you would not see another prompt
because it uses all available blocks.