Motorola 4550 用户手册
Advanced Features
English
27
Starting and Stopping Scan
Procedure:
Press the programmed Scan button to start or stop Scan. OR
Follow the procedure below.
Press the programmed Scan button to start or stop Scan. OR
Follow the procedure below.
1
Use the Channel Rocker to select a channel programmed
with a scan list.
with a scan list.
2
S
to access the menu.
3
P
or
Q
to Scan and press
N
to select.
4
The display shows Turn On if scan is disabled.
OR
The display shows Turn Off if scan is enabled.
OR
The display shows Turn Off if scan is enabled.
5
Press
N
to select.
6
The yellow LED blinks and the scan icon is displayed when
Scan is enabled.
OR
The LED turns off and the scan icon is not displayed when
Scan is disabled.
Scan is enabled.
OR
The LED turns off and the scan icon is not displayed when
Scan is disabled.
While scanning, the radio will only accept data (e.g. text
message, location, telemetry, or PC data) if received on its
Selected Channel.
message, location, telemetry, or PC data) if received on its
Selected Channel.
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”.
activity is detected. The radio stays on that channel for a
programmed time period known as “hang time”.
Procedure:
1
If the Channel Free Indication feature is enabled, you
will hear a short alert tone the moment the transmitting radio
releases the PTT button, indicating the channel is free for
you to respond.
releases the PTT button, indicating the channel is free for
you to respond.
2
Press the PTT button during hang time. The green LED
lights up.
lights up.
3
Wait for the Talk Permit Tone to finish (if enabled) and
speak clearly into the microphone.
OR
speak clearly into the microphone.
OR
Wait for the PTT Sidetone to finish (if enabled) and
speak clearly into the microphone.
4
Release the PTT button to listen.
5
If you do not respond within the hang time, the radio returns
to scanning other channels/groups.
to scanning other channels/groups.
NAG_6880309T15.book Page 27 Tuesday, March 9, 2010 11:47 AM