Icom F9011 / F9021 Instruction Manual - Page 14
Talk Around Key, Lock Key, Light Key, High/low Key, Surveillance Key, Compander Key, User Set Mode Key
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2 PANEL DESCRIPTION TALK AROUND KEY "TA" (Conventional operation only) Push to turn the talk around function ON and OFF. • The talk around function equalizes the transmit frequency to the receive frequency for transceiver-to-transceiver communication. LOCK KEY "LOCK" ➥ P ush and hold for 1 sec. to electronically lock all program- mable keys except the following: [PTT], [Moni], [Light], [Lock], [Emergency Single], [Emergency Repeat], [Surveillance] and [OPT 1/2/3]. ➥ P ush and hold for 1 sec. again to turn the lock function OFF. LIGHT KEY "LIGT" Push to turn the transceiver's backlight ON for about 5 sec. when the backlight function is turned OFF in user set mode. (p. 14) HIGH/LOW KEY "H/L" Push to select the transmit output power temporarily or permanently, depending on the pre-setting. • Ask your dealer for the output power level for each selection. SURVEILLANCE KEY "SURV" Push to turn the surveillance function ON and OFF. When this function is turned ON, the beep is not emitted and the LCD backlight does not light when a signal is received or a key is pushed, etc. COMPANDER KEY "COMP" Push to toggle the compander function ON and OFF. The compander function reduces noise components from the transmitted audio to provide clear communication. USER SET MODE KEY "SET" ➥ Push and hold for 1 sec. to enter user set mode. • During in the user set mode, push this key to select an item that is enabled by your dealer, and change the value or condition by pushing [CH Up] or [CH Down]. ➥ Push and hold this key for 1 sec. again to exit user set mode. User set mode is also available via the 'Power ON function.' Refer to page 14 also. OPT OUT KEYS "OP1" "OP2" "OP3" Push to control the output signal level from the optional unit connector. OPT MOMENTARY KEYS "O1M" "O2M" "O3M" Push to control the output signal level from the optional unit connector. CLOCK KEY "CLCK" Push to indicate the current time on the LCD. (p. 15) • While the current time is indicated, push and hold this key for 1 sec. to enter the time data edit mode.