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RADIO-WIDE FEATURES
23
4.8 SCANNING
4.8.1  INTRODUCTION
Scanning monitors the channels in the scan list 
for messages that the radio is programmed to receive. 
When a message is detected, scanning stops and the 
message is received. Shortly after the message is 
complete, scanning resumes (unless it has been 
disabled). When a call is received in the scan mode, 
the alias of the channel on which a call is received 
(and any other display parameters that may be 
programmed) are displayed until scanning resumes. 
The selected channel alias is then displayed if 
applicable. 
There are two basic scan modes available: 
Priority (Standard) and Radio Wide. The operation of 
the priority type is unique to the type of channel 
selected, and the operation of Radio Wide type is the 
same regardless of the type of channel selected. Only 
one type can be enabled at a time. For example, if 
priority scanning is enabled and radio wide scanning is 
selected, priority scanning is automatically disabled 
and vice versa. More information on these types of 
scanning follows.
4.8.2  PRIORITY SCANNING
Priority scanning (also referred to as standard 
scan) monitors only channels that are the same type as 
that currently selected. For example, if a conventional 
channel is selected, only conventional channels are 
scanned and likewise for SMARTNET/SmartZone and 
Project 25 Trunked channels. 
More information on how priority scanning oper-
ates in the Conventional Mode is located in Section 
5.11
, and for the other modes in Section 6.12. Priority 
scanning is turned on and off by the Scan option 
switch or menu parameter as follows. If this switch or 
menu parameter is not programmed, Priority scanning 
is not available.
Enable scanning using the Scan option switch or 
menu parameter. Scanning is enabled when “Scan 
On” is briefly displayed and the 
 icon is 
indicated. 
To turn scanning off, press the Scan option switch 
again or select “Off” in the scan menu. Scanning is 
disabled when “Scan Off” is briefly displayed and 
the 
 icon is no longer indicated. 
If the zone or channel is changed while scanning is 
selected, scanning continues on the same or a 
different scan list (see Section 4.9.1). 
NOTE: Each SMARTNET/SmartZone and P25 trunked 
channel can be programmed so that scanning is auto-
matically enabled when the channel is selected.
4.8.3  RADIO WIDE SCANNING 
NOTE: Use radio wide scanning only if two different 
channel types need to be scanned at the same time 
such as conventional and SMARTNET/SmartZone. 
Otherwise, use the more efficient priority scanning 
because there is less chance of missed calls.
Radio wide scanning monitors the channels in the 
preprogrammed radio-wide scan list. This scan list can 
include up to 16 channels of any type and assigned to 
any zone (see Section 4.9.2). Radio wide scanning is 
turned on and off by the Radio Wide Scan option 
switch or menu parameter as follows. If this switch or 
menu parameter is not programmed, radio wide scan-
ning is not available. 
Enable Radio Wide Scanning using the Radio Wide 
Scan option switch or menu parameter. Radio wide 
scanning is enabled when “RW Scn On” is briefly 
displayed and the 
 icon is indicated. 
To turn radio wide scanning off, press the Radio 
Wide Scan option switch again or select “Off” in the 
menu. Scanning is disabled when “RW Scn Off” is 
briefly displayed and the 
 icon is no longer 
indicated.
If the zone or channel is changed while radio wide 
scanning, scanning continues normally.
4.8.4  SCAN HOLD TIME
When a message is received or transmitted while 
scanning, there is a delay before scanning resumes. 
The delay after receiving a call prevents another 
message from being received before a response can be 
made. The delay after transmitting a call ensures that a 
response is heard instead of another message occurring 
on some other channel.