User's Manual

82
Notes
• Trunking group frequencies are included in the supplied Trunking Guide. Frequency
fleet map and talkgroup information are also widely available on the Internet, for
example, at www.trunkscanner.com.
Setting Squelch for Trunking
For optimal receiver performance when scanning both trunked and conventional
systems, we recommend that you set the squelch close to threshold. Navigate to a
programmed channel in manual mode. While the channel is idle, turn the squelch control
fully counterclockwise. You will hear a loud rushing noise from the speaker. Turn the
squelch control clockwise until the noise stops. You may find it necessary to set the
control a bit further in the clockwise direction to prevent very weak signals or interference
from stopping the scan operation.
Talkgroup ID Hold
You can set your scanner to follow a trunking signal that you want to track during
scanning.
While the scanner is stopped on a voice channel (VC appears next to the frequency in
the display), hold down TRUNK until ID hold ON appears in the scanner’s display.
To manually activate ID hold mode on a selected ID, enter the ID list, scroll to the desired
ID, then press FUNC TRUNK. The scanner will initiate ID hold operation on the selected
talkgroup.
When ID hold is activated and the scanner receives a voice channel, the scan indication
S at the first digit in the top line changes to H to indicate that the call is being monitored
while the scanner is in ID hold.
To release ID hold, press SCAN or TRUNK.
Turning an ID Sub-Bank On or Off
Follow these steps to turn the ID sub-bank on or off during the program mode:
1. Press TRUNK repeatedly to select the desired sub-bank.