Icom IC-F3021 / F4021 Instruction Manual - Page 10

2 PANEL DESCRIPTION I Function display qw e r t y u i o !0 q TRANSMIT INDICATOR Appears while transmitting. w BUSY INDICATOR Appears while the channel is busy. e SIGNAL STRENGTH INDICATOR Indicates relative signal strength level. r LOW POWER INDICATOR Appears when low output power is selected. • When the battery power decreases to a specified level, low power is selected automatically. t AUDIBLE INDICATOR ➥ Appears when the channel is in the 'audible' (unmute) condition. ➥ Appears when the specified 2-tone code is received. y SCRAMBLER INDICATOR Appears when the voice scrambler function is activated. u BELL INDICATOR Appears/blinks when the specific 2-tone code is received, according to the pre-programming. i KEY LOCK INDICATOR Appears during the key lock function is ON. o BATTERY INDICATOR Appears or blinks when the battery power decreases to a specified level. !0 ALPHANUMERIC DISPLAY Displays an operating channel number, channel name, Set mode contents, DTMF code, etc. 6