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20-432.fm Page 37 Friday, July 14, 2000 11:30 AM
MONITORING IDS
You can use your scanner's display to
monitor the frequencies in a trunked
system for activity. You cannot hear
conversations in this mode, but this is
an excellent way to determine which
talk groups are the most active.
To set the scanner to monitor IDs,
hold down
SEARCH
beeps twice.
SEARCH
talk group IDs appear in succession.
To
stop
monitoring
again.
SEARCH
Note: When you monitor IDs, locked-
out IDs also appear.
CHANNEL ACTIVITY
INDICATORS
Your scanner has 20 channel activity
indicators (bars). The bars show that
transmissions are being received on a
trunked system.
You can use the bars to tell how many
frequencies are being used and gen-
erally monitor how much communica-
tion traffic is occurring on a trunked
system.
• A bar that remains on steadily
even when there are no current
transmissions represents the fre-
quency being used as the data
channel.
until the scanner
flashes, and all
IDs,
press
• The bar that flashes when an ID
appears represents the frequency
being used by the radio you are
currently hearing.
• If a bar turns on but you do not
hear a conversation, the channel
is probably being used for a tele-
phone interconnect call or a pri-
vate call, or the indicator might be
a locked-out ID. Your scanner
does not monitor these types of
calls.
• If the scanner is holding on an ID
which is not active, the other bars
turn on and off as other groups
use the system
A bar appears for each frequency you
store in a trunking bank.
SCAN LISTS
When you program trunked frequen-
cies into a bank (see "Programming
Trunked Frequencies" on Page 32),
your scanner sets up 5 scan lists into
which you can store your favorite IDs.
Each list can contain up to 10 IDs, so
you can store a total of 50 IDs for each
trunk scanning bank (1000 IDs if you
use all banks as trunking banks).
37
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