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Trunk Scanning
To turn this function on or off:
1.
Press FUNC + MAN/MENU to open Menu Mode.
2. Select Trunk Option, then press ENT/PGM. Press
then press ENT/PGM.
3. Select MOT, then press ENT/PGM.
4. Select Set C-Ch Only, and press ENT/PGM.
5. Select On or Off and press ENT/PGM.
Setting the Status Bit Feature (S-Bit)
To control how the scanner interprets and displays talk group IDs, set status
bits (also called S-Bits), to Yes or Ignore. 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 (S-bit feature = Ignore). For example, when the
scanner receives the talk group ID 010111001110 0011, it reads the ID as
010111001110 0000 and converts the first 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.
Note: If you are scanning a Motorola Type I system and do not have a
fleet map for that system, you might have to set the status bit
feature to Ignore in order to determine the proper fleet map.
Important: If you are scanning any system other than a Motorola Type I
system, be sure the status bit feature is set to Yes or you will
miss some transmissions.
To set the status bit feature to yes or ignore.
1. Press FUNC + MAN/MENU to open Menu Mode.
2. Select Trunk Option, then press ENT/PGM. Press
then press ENT/PGM.
3. Select MOT, and press ENT/PGM.
4. Select Set Status Bit, and press ENT/PGM.
5. Select Yes or Ignore, and press ENT/PGM.
or
to select a bank,
or
to select a bank,
56
Setting the Disconnect Tone Detect Function
When the Motorola disconnect tone detect function is disabled, the scanner
looks for squelch before returning to the control channel instead of waiting
for the disconnect tone. Only in rare instances will you need to adjust the
default settings. The condition to return to control channels depends on
whether the signal is present or not.
1.
Press FUNC + MAN/MENU to open Menu Mode.
2. Select Trunk Option, then press ENT/PGM. Press
bank, then press ENT/PGM.
3. Select MOT, and press ENT/PGM.
4. Select Set End Code, and press ENT/PGM.
5. Select Yes or Ignore, and press ENT/PGM.
Note: If you set the squelch so you hear a hissing sound when you set
ignore, the scanner will remain on the voice channel, even when a
disconnect tone is transmitted or there is no signal at all.
EDACS Talk Groups
Selecting the EDACS Talk Group ID Format
Your scanner can enter or display EDACS talk groups in decimal format (1-2047).
1. Press FUNC + MAN/MENU to open Menu Mode.
2. Select Trunk Option, then press ENT/PGM. Press
then press ENT/PGM.
3. Select EDCS, and press ENT/PGM.
4. Select EDCS ID Format, and press ENT/PGM.
3. Select AFS Format or Decimal Format, and press ENT/PGM.
You can use this feature to translate decimal talk group lists to the much
more powerful AFS format. Become familiar with AFS partial entry, and your
scanning will become far more flexible and efficient.
Trunk Scanning
or
to select select a
or
to select a bank,
57
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