User Manual

RADIO-WIDE FEATURES
21
in the on or off mode by programming. If the Surveil-
lance mode is programmed (see following), tones are
totally disabled.
The Alert Tone volume** can be adjusted relative
to the volume control setting. This is done by
programming and also by the user if the Tone Volume
Adjust option button or menu parameter is
programmed. Relative levels of –170 to +170 can be
set with “0” the default setting. A minus value
decreases the tone volume and a plus value increases
it. The user adjusted level permanently overrides the
programmed level if applicable.
4.7 SURVEILLANCE MODE
If the Surveillance mode* is programmed, the
backlight, all alert tones, and front panel LED indi-
cator are totally disabled in all operating modes. This
feature can be turned on and off** by the user if the
Surveillance Mode option button or menu parameter
are programmed. The user selected mode permanently
overrides the programmed mode if applicable.
4.8 SCANNING
4.8.1 INTRODUCTION
Scanning monitors the channels in the scan list
for messages that the transceiver 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).
There are two basic scan modes available: Stan-
dard and Radio Wide. The operation of the standard
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 standard scanning is
enabled and radio wide scanning is selected, standard
scanning is automatically disabled and vice versa.
More information on these types of scanning follows.
4.8.2 STANDARD SCANNING
Standard scanning 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 standard scan-
ning operates in these modes is located in the
following sections:
Conventional Mode - Section 5.11
Other Modes - Section 6.12
Standard 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,
standard scanning is not available.
• Enable scanning using the Scan option switch or
menu parameter. Scanning is enabled when the
icon is displayed.
• To turn scanning off, press the Scan option switch
again or select “Off” in the scan menu. Scanning is
disabled when the icon is no longer displayed.
• If the zone or channel is changed while scanning is
selected, scanning continues on the same or a
different scan list (see “Standard Mode Scan Lists”
on page 22).
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 types of
channels need to be scanned at the same time such as
conventional and SMARTNET/SmartZone. Otherwise,
use the more efficient standard 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 “Radio Wide Scan List” on page 22).
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 scanning is not available.
* This feature requires 51xx operating (Flash) software
1.5.0 or later and PCConfigure 1.17 or later.
** This feature requires 51xx operating (Flash) software
1.9.0 or later and PCConfigure 1.20 or later.