User Manual

13
GENERAL OPERATION
SECTION 3 GENERAL OPERATION
3.1 TURNING POWER ON AND SETTING
VOLUME
3.1.1 POWER UP
Power is turned on and off by the top panel On-
Off/Volume switch. When power is initially turned on,
the following events occur:
• The software version number is displayed.
• A self test is performed.
• The currently selected zone is displayed.
• If a conventional P25 channel is selected, the
Individual ID of the radio is displayed.
• If a SMARTNET/SmartZone or P25 Trunked
channel is selected, the Unit ID of the radio is
displayed.
• A tone sounds (if tones are enabled)
• The selected channel alias is displayed continuously
when power-up is complete.
Programming determines if the transceiver
powers up on the last selected zone or the pre-
programmed home zone. Refer to Section 3.3 for
information on the channel that is selected. The
minimum volume level may be set by programming.
This can prevent missed messages resulting from inad-
vertently turning the volume to an inaudible level.
3.1.2 STANDARD AND SOFT POWER DOWN
To turn power off, rotate the On-Off/Volume
control counterclockwise until a click occurs. Power
may remain on for an instant after turn-off occurs.
A soft power down feature* can be programmed
to prevent radio power from being turned off by acci-
dentally turning the on-off/volume control. Any side
button can be programmed for this function (in addi-
tion to the normal function). Then for power to turn
off, this button must be pressed during or after power
is turned off in the normal manner using the knob.
When this feature is programmed, turning the on-off/
volume knob to off has no affect.
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
occurs.
When the volume control buttons are used, the
number of steps (ticks) the volume changes from
minimum to maximum is programmable for 1-50. For
example, if “20” is programmed, there are 20 adjust-
ment 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 relative volume level can be determined by
the position of the index on the volume knob or by a
reference tone as follows:
• If a key press tone is enabled, a short tone sounds
when a key is pressed.
• 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 5.3). If a SMARTNET/Smart-
Zone or P25 Trunked channel is selected, the
receiver cannot be manually unsquelched.
3.2 POWER-UP PASSWORD
The power-up password feature prevents unau-
thorized use of the transceiver by locking the keypad
on power up until the proper password is entered. 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 then be entered as follows.
In addition, since the logic resets each time program-
* This feature requires 51xx operating (Flash) software
1.9.0 or later and PCConfigure 1.20 or later.
** This feature requires 51xx operating (Flash) soft-
ware 1.11.0 or later and PCConfigure 1.21 or later.