11 Optional UT-105 installation. 12 4 OPTIONAL SmarTrunk IITM OPERATION. 13­15 s SmarTrunk IITM and conventional modes. 13 s SmarTrunk IITM operation. 13 For U. only CAUTION: Changes or modifications to this transceiver, not expressly approved by Icom Inc. , could void your authority to operate this transceiver under FCC regulations. 5 OPTIONS. 16 ii 1 PANEL DESCRIPTION s Front panel VOLUME CONTROL FUNCTION DISPLAY PROGRAMMABLE FUNCTION KEYS SPEAKER P0 P1 P2 P3 MICROPHONE CONNECTOR PROGRAMMABLE FUNCTION KEYS POWER SWITCH 1 PANEL DESCRIPTION VOLUME CONTROL Adjusts the audio output level. · Minimum audio level (when setting control at maximum counterclockwise) is pre-programmed. POWER SWITCH Turns the power ON and OFF. · The following functions are available at power ON as options: · Automatic scan start · Password prompt 1 s Programmable function keys The following functions can be assigned to programmable function keys. Assigned function names can be affixed to the LCD using supplied stickers. CHANNEL UP AND DOWN KEYS · Select an operating channel CH UP · Select a bank after pushing the [BANK S] key. CH DN · Select a DTMF channel after pushing the [DTMF] key. · Select a scan group after pushing and holding the [SCAN] key. BANK UP AND DOWN KEYS Select a bank (a group of 16 (or multiples of) chanBK UP nels). BK DN MICROPHONE CONNECTOR Connects the supplied microphone or optional DTMF microphone for SmarTrunk IITM operation here. NEVER connect other microphones. The pin assignments may be different and the transceiver may be damaged. MICROPHONE The supplied microphone has a PTT switch and a hanger hook...