Audiovox FR-230 Owner's Manual page 7

LED DISPLAY AND OPERATION
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The FR-230 is equipped with an LED display to indicate its
settings and functions. Pressing the P (Push-to-Talk), monitor,
function select or call buttons, will illuminate the display. The dis-
play will remain lit for 5 seconds after any of these buttons is
pressed.
1 Illuminates red when transmitting
2 Illuminates green when the battery power is low.
3 Displays the current channel number (1 to 14).
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