5300 ES Series Mobile Radio Operating Manual
3-3
General Operation
3.2
Power-Up Password
The power-up password feature prevents unauthorized use of the radio by requiring that an
eight-digit password be entered to make it operational. This feature is enabled or disabled
by programming.
When it is enabled, “ENTER PSWD” is briefly displayed when power is turned on, the
eight-digit numeric password must be entered by pressing and rotating the Select switch.
If an incorrect password is entered, “INCORRECT” is displayed and it must be re-entered.
An enhanced password scheme allows up to four power-on (user) passwords, download
and upload passwords, and a master password to be programmed.
The current User password can be changed if the “PW CHG” option switch is
programmed. Selecting this function displays prompts for entering and confirming a new
password. Refer to Section 9 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 4.10).
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 F2 and F6 to enter angle change mode. If you
do not rotate the select switch for three seconds, it times out and goes back to zone or
channel change.
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
Zone / Channel Display and Select operate as follows:
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