E F Johnson Company 2425372 Benutzerhandbuch
Draft
December 2006
5300 ES Series Mobile Radio Operating Manual -3
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).
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.
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.
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 alphanumeric 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 Information option switch is programmed (see Section 5.8).
shown in the following illustration. In addition, the selected zone identification (alias) is
displayed in the alphanumeric 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 Information option switch is programmed (see Section 5.8).
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.
Therefore, up to 256 channels can be selected. One use for zones may be for operation in
different geographical areas.
Zone
No.
Chnl
No.
Zone Select Indicator
Channel Select Indicator