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58
Beyond the Basics
skipping a trunked bank
You can scan conventional frequencies
programmed in the same bank by holding
down S for about 1 second. If there is no
conventional frequency, the scanner scans
the next bank.
turning the status bit ignore
(s-bit) on or off
You can set how your scanner works
with status bits (also called S-Bits), letting
you control how the scanner interprets
and displays talk group IDs. The last four
bits of a Motorola Type II talk group ID (a
binary 16-bit code) are the status bits. In
some systems, status bits identify special
situations (such as an emergency status).
Your scanner is preset to assume that the
status bits in a talk group ID are set to 0
and ignores them. For example, when
the scanner receives the talk group ID
010111001110 0011, it reads the ID as
010111001110 0000 and converts the fi rst
12 bits of the ID to 23776 (the talk group
ID). However, since the status bit value is 3
(0011 converted to decimal equals 3), the
ID is actually 23779.
If you are scanning a Motorola Type I
system and do not have a fl eet map for that
system, you might have to turn off status
bit ignore in order to determine the proper
fl eet map.