Operating Manual

March 2008 5100 ES Models II/III Portable Radio Operating Manual 3-3
General Operation
3.1.3 Setting Volume Level
The volume level is adjusted by the top panel volume control knob or by option buttons
programmed for the Up/Down volume function. When the buttons are used, the volume
control function of the knob is disabled (it is still used to switch power). Volume buttons
may be used instead of the knob, for example, if accidental turning of the volume knob is
a problem.
When the volume control buttons are used, the number of steps (ticks) required to change
the volume from the minimum level to maximum level is programmable for 1-50. For
example, if “20” is programmed, there are 20 adjustment steps from minimum to
maximum volume. Only one volume control button can be programmed if desired and
wrap-around then occurs after the maximum or minimum level is selected.
The radio can also be programmed so that volume control is also be disabled by the
Keypad Lock feature.
The minimum volume level that the volume control can select can be programmed. This
can be used to prevent missed messages caused by unintentionally turning the volume
down too far. Relative levels of 0-255 can be set in steps of 1 (“0” sets the lowest
minimum volume).
Note This setting is applicable to 51xx and Ascend portable radios.
The relative volume level can be determined by the position of the index on the volume
knob or by a reference signal as follows:
• If a key press tone is enabled, a short tone sounds when a key is pressed. Tones and
audio can differ depending on how it is set in PC Configure.
• If a conventional channel is selected and the Monitor option switch or menu parameter
is programmed, pressing that switch unsquelches the receiver and either voice or
background noise is heard (see Section 5.2). If a SMARTNET/SmartZone or P25
Trunked channel is selected, the receiver cannot be manually unsquelched.
3.2 Power-Up Password
The power-up password feature prevents unauthorized use of the radio by disabling it
when power is turned on until the proper password is entered. This feature is enabled or
disabled by programming.
When this feature is enabled, “Enter Pswd” is briefly displayed when power is turned on.
The password can be 1-8 digits in length, and consists of digits 0-9. It is entered as
follows. If an incorrect password is entered, “Incorrect” is displayed and it must be re-
entered.