GENERAL OPERATION
14
password must also be entered whenever program-
ming data is read or written using the PCConfigure
software. If this password is lost, all personality infor-
mation must be erased using the PCTune software and
the radio reprogrammed. Refer to Section 10 for more
information on passwords.
3.3 BACKLIGHT CONTROL AND DISPLAY
VIEWING ANGLE ADJUST
If the
BKLHT
option switch is programmed, it
can be used to select high, medium, or off backlight
modes. Otherwise, the keypad and display backlight is
fixed in one of these modes by programming. The
backlight is totally disabled when the Surveillance
mode is programmed (see Section 4.9).
If the display is difficult to read from the angle
you normally view it, the viewing angle can be
adjusted as follows: Press and hold the last option
switch above the display and then press the first option
switch above the display. Then release both switches
and turn the Select switch until the best contrast is
obtained. This function times out in 3-5 seconds.
NOTE: If the display appears blank or all icons are
continuously displayed, the viewing angle is probably
improperly adjusted.
3.4 ZONE/CHANNEL DISPLAY AND SELECT
3.4.1 ZONE/CHANNEL DISPLAY
The selected zone and channel numbers are
displayed by the zone and channel displays shown in
the following illustration. In addition, the selected
zone identification (alias) is displayed in the alphanu-
meric display area when the zone select mode is
enabled, and the channel alias is displayed when the
channel select mode is enabled (see following). With
conventional channels, the channel frequency may be
displayed instead of the alias if the Display Informa-
tion option switch is programmed (see Section 5.9).
A zone can include any mix of up to 16 channels,
and up to 16 zones can be programmed. Therefore, up
to 256 channels can be selected. One use for zones
may be for operation in different geographical areas.
3.4.2 ZONE/CHANNEL SELECT
The front panel Select switch is used to change
the zone and channel. Pressing this switch toggles
between the zone and channel select modes, and
rotating it changes the zone or channel.
The current mode is indicated by the bar over the
zone or channel display. For example, when the bar is
over the zone display (see following illustration), the
zone select mode is enabled.
Rotating the Select switch clockwise increases
the zone or channel and rotating it counterclockwise
decreases the zone or channel number. After the
highest zone or channel is displayed, wrap-around to
the lowest zone or channel occurs and vice versa. If an
unprogrammed channel is selected,
“UNPROGRAMD”
is displayed and a tone sounds. The radio may also be
programmed so that only programmed channels are
selected.
The radio can be programmed so that the bar
defaults to either the zone or channel display when
power is turned on and after a change is made. The
delay that occurs before it returns is programmed for
1-15 seconds. It can also be programmed to remain in
the last selected mode.
3.4.3 DIRECT CHANNEL SELECT
The direct Channel Select feature is available
with the HHC* (Handheld Control Unit) only, and if
the Channel Select option switch parameter is
programmed. This feature allows channels to be
directly selected using the HHC numeric keys or Up/
Down switch.
Zone
No.
Chnl
No.
Zone Select Indicator
Channel Select Indicator
*
Later models only
