Icom IC-F4230D Instruction Manual - Page 12

2 PANEL DESCRIPTION ■■ Programmable function keys (Continued) SIREN Hold down for 1 second to sound the siren. This function can be used for situations other than an emergency alert, such as a security alarm for example. • The siren can be stopped only by turning OFF the transceiver power. USER SET MODE ➥➥Hold down for 1 second to enter the User Set mode. • While in the User Set mode, push this key to select an item*, and change the value or setting by pushing [CH Up] or [CH Down]. *Selectable items may differ, depending on the preprogramming. ➥➥Hold down this key for 1 second again to exit the User Set mode. ANNOUNCE Push to turn the Channel Announce function ON or OFF. When this function is turned ON, the transceiver announces the channel number when it is selected. RESET ➥➥Push to return to the normal operating mode. ➥➥While in the audible mode, push to return to the inaudible mode. NOTE: See the operating guide for the [Reset] key operation in the digital mode. SHIFT Push to toggle the Normal mode key functions and the Shift mode key functions. • When the Shift mode is selected, the display briefly shows "SHIFT ON." When the Normal mode is selected, the display briefly shows "SHIFT OFF." 7