Audiovox FR548-2CH - Manual (Page 11)

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USING YOUR FR548-2CH
Turning the Transceiver On and Off
Pressing the power button (1) for 2 seconds will activate the unit. The speaker
will sound a beep tone to confirm the transceiver’s activation. In addition, the
transceiver will perform a 1-second power-on self-test, whereby the LCD dis-
play will show all functional items, including a test of both the 2-digit channel
display ( ) and the CTCSS channel display ( ). To turn the unit off, simply press
and hold the power button for 2 seconds. The unit will confirm its shutdown with
a single beep tone.
Volume Level
Audio reception volume is controlled by the Up (
F ) and the Down ( G ) button.
Momentarily pressing either button will raise or lower the volume level in steps as
shown by 1
Uo through 8 Uo on the display. Pressing and holding either button will
adjust the volume rapidly.
Call Button (8)
When the call button is pressed, the call icon ( ) will appear on the display and
the FR-548-2CH will transmit a 2-second ringing sound to other transceiver’s
tuned to the same channel. This feature can be used to signal other parties that
voice communication is desired.
Low Battery Alert
When the batteries are in need of replacement or charging, the low battery icon
( ) will appear on the LCD display and the transceiver will sound a tone to alert
the user.
Monitor Button
You can monitor channel activity by pressing the Monitor (M) button (3). If pressed
and held for more than 2 seconds, you can continuously monitor channel activity.
Press again, momentarily, and monitoring is disabled. Pressing this button mo-
mentarily will cause the unit to beep and the LCD backlight function will be acti-
vated for 5 seconds.