TRANSCEIVER OPERATION
2-4
November 1999
Part No. 001-7780-500
BUSY -A busy system or transmit channel is being
detected by the Busy ChannelLockout feature (see
Section 2.4.5).
- The battery needs recharging (see Section
2.3.6).
- The keypad has been locked by pressingthe
Keypad Lock option switch (see Section 2.3.5).
2.3 GENERAL OPERATION
2.3.1 INTRODUCTION
This section (2.3) describes features available
with both trunked and conventionaloperation. For
information on features unique to conventional chan-
nels, refer to Section 2.4, and forinformation on
features unique to SMARTNET/SmartZonechannels,
refer to Section 2.5.
2.3.2 TURNING POWERON AND SETTING
VOLU ME
Power is turned on and off by the On-Off/Volume
switch on the top panel.W henpower is initially turned
on, an alert tone sounds and the radio software version
is momentarily displayed. If a SMARTNET/Smart-
Zone channel is selected, the zone alias is then
displayed followed by the unit ID (see page 13). The
selected channel is then indicated.
To turn power off,turn the On-Off/Volume knob
counterclockwise until a click occurs. The di splay may
remain on for a few seconds after po wer is turned off.
It is recommended that power not be turned back on
again until the display is blank.
The relative volume level can be determined by
noting the position of the indexon the On-Off/Volume
knob. To enablea r eferencetone for setting the
volume, proceed as follows:
•If key press tones are enabled (see Section 2.3 .10),
a short tone sounds when front panel keys are
pressed.
•If a conventional channel is selectedand the
Monitor option switch is programmed (see Section
2.4.4), pressing that switch unsquelches/squelches
the receiver and eithervoice or background noise is
heard. If a SMARTNET/SmartZone channelis
selected, the receiver cannot be manually
unsquelched.
2.3.3 BACKLIGHT
The backlight for the display and keypadcan be
manually turned on by pressing the Backlight option
switch if it is available. It ca na lso be dealer
programmed to automatically turnon when any key is
pressed. It then automatically turns offafter the
programmed delay so that batterydrain is minimized.
2.3.4 OPTION SWITCHES
The programmable option switches are as
follows, and the programmable functionsare shown in
Tabl e 2-1.
•F1, F2, F3
•,#(full keypad 15-key models only)
•AUX, FCN (on side)
If the radio is programmed withboth conven-
tional and SMARTNET/SmartZonechannels (see
Section 2.3.12), these option switchescan control a
different set of functions for each channeltype. For
example, the F1 switch could select Hi/Lo Power
when a conventional channel is selectedand Private
Calls when a SMARTNET/SmartZonechannel is
selected. If no option switchhas been programmed to
control a particular function, that functionmay not be
available or may be in a fixed mode.
2.3.5 KEYPAD LOCK
If the Keypad Lock option switch hasbeen
programmed, the keypad can be locked(disabled) to
prevent keys from being accidentallypressed. To lock
the keypad, press this switch anda locked keypad is
indicated by the icon in the display.To unlock the
keypad again, press and hold the Keypad Lock switch
until a tone sounds (approximately1 second). The
keypad can also be disabled by programming.It is
then permanently disabled andcannot be re-enabled
by the user.
*