Motorola DP 4400 UHF - Manual (Page 32)

Advanced Features
English
24
Scan
When you start a scan, your radio cycles through the
programmed scan list for the current channel looking for voice
activity.
The LED blinks yellow.
During a dual mode scan, if you are on a digital channel, and
your radio locks onto an analog channel, it automatically
switches from digital mode to analog mode for the duration of
the call. This is also true for the reverse.
There are two types of scans:
• Main Channel Scan (Manual): Your radio scans all the
channels/groups in your scan list. On entering scan, your
radio may – depending on the settings – automatically start
on the last scanned “active” channel/group or on the channel
where scan was initiated.
• Auto Scan (Automatic): Your radio automatically starts
scanning when you select a channel/group that has Auto
Scan enabled.
NOTE: This feature is not applicable in Capacity Plus and
Linked Capacity Plus.
Starting and Stopping Scan
Procedure:
1 Press the programmed Scan button.
OR
Use the Channel Selector Knob to select a channel with
Auto Scan enabled.
2 When Scan is enabled, the LED blinks yellow and you hear
a positive indicator tone.
OR
When Scan is disabled, the LED turns off and you hear a
negative indicator tone.
Responding to a Transmission During a Scan
During scanning, your radio stops on a channel/group where
activity is detected. The radio stays on that channel for a
programmed time period known as “hang time”.
Procedure:
1 Hold the radio vertically 1 to 2 inches (2.5 to 5.0 cm) from
your mouth.
If the Channel Free Indication feature is enabled, you
hear a short alert tone the moment the transmitting radio
releases the PTT button, indicating the channel is free for
you to respond.
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