Icom IC-F4230D Instruction Manual - Page 11

PANEL DESCRIPTION 2 PRIORITY A CHANNEL, PRIORITY B CHANNEL LOCK 2 Push to select the Priority A or Priority B channel. ➥➥Hold down this key until "LOCK ON" is displayed to elec- tronically lock all programmable keys except the following: PRIORITY A CHANNEL (REWRITE), [Moni], [Lock], [Emergency]*, [Surveillance], [Siren], [Lone PRIORITY B CHANNEL (REWRITE) Worker]*, [Light] and [Shift]. ➥➥Push to select the Priority A or Priority B channel. *For digital operation. See the operating guide for details ➥➥Hold down [Prio A (Rewrite)] or [Prio B (Rewrite)] for ➥➥To turn OFF the Key Lock function, hold down this key until 1 second to assign the operating channel to Priority A or "LOCK OFF" is displayed. Priority B channel, respectively. HIGH/LOW MEMORY CHANNELS 1, 2, 3, 4 Push to select the transmit output power temporarily or per- Push to directly select memory channel 1, 2, 3 or 4, if pro- manently, depending on the preprogramming. grammed. • Ask your dealer for the output power level for each selection. Consult your dealer for details. TALK AROUND MONITOR Push to turn the Talk Around function ON or OFF. Push to turn the CTCSS (DTCS) squelch mute ON or OFF. • The Talk Around function equalizes the transmit frequency to the receive frequency for transceiver-to-transceiver communication. LIGHT Push to turn ON the backlight for about 5 seconds, when the backlight function is set to "OFF" in the User Set mode. WIDE/NARROW Push to toggle the IF bandwidth between wide and narrow. SURVEILLANCE Push to turn the surveillance function ON or OFF. When this function is turned ON and a signal is received, the beep is not heard and the LED does not light, even if a key is pushed. 6