Audiovox FR-531-2 - Manual (Page 7)

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LCD DISPLAY AND OPERATION
The FR-531-2 is equipped with an LCD
display to indicate its settings and
functions.
Transmission Indicator
Low Battery Alert
FRS Channel Indicator (1–14). Appears each
time power is turned on during a power-on self-
test of the unit.
appears each time power is turned on during
a power-on self-test of the unit to check integrity
of LCD.
Key Lock Indicator. Appears for 2 seconds when
Function (F) button is pressed and held to
disable unit key functions (except PTT).
Busy Channel Indicator. Displays when
Monitor button is pressed.
VOX Function Indicator
VOX
BUSY
VOX