24PROGRAMMABLE KEY FUNCTIONSProgrammable key functions (Continued)DTMF AUTODIALPush to enter the DTMF number selection mode,➥then select a DTMF number by pushing [CH Up] or[CH Down].After selecting the DTMF number, push again to➥transmit the selected DTMF code.RE-DIALPush to transmit the last-transmitted DTMF code.➥NOTE: TX memories are cleared after turning OFFthe transceiver.SURVEILLANCEPush to turn the Surveillance function ON or OFF.➥• When this function is ON and a signal is received, a beepdoes not sound and the LED does not light, even if youpush any key.SIRENHold down to sound a siren.➥• You may use this function for other than an emergencyalert. For example, use it as a security alarm.Turn OFF the transceiver power to stop the siren.➥SCRAMBLERPush to turn the Voice Scrambler function ON or➥OFF.COMPANDERPush to turn the Compander function ON or OFF.➥• The Compander function reduces noise componentsfrom the transmitted audio to provide clear communica-tion.USER SET MODEHold down to enter the User Set mode.➥• While in the User Set mode, push this key to select anitem, and then change the value or setting by pushing[CH Up] or [CH Down].Briefly hold down this key again to exit the User Set➥mode.ANNOUNCEPush to turn the Channel Announce function ON or➥OFF.NOTE: When the Beep function (p. 6) is OFF, theoperating channel is not announced, regardless ofthis setting.SHIFT1. Push to turn ON the Shift mode key functions.• “SHIFT ON” is briefly displayed.2. Push another key to activate its secondary function.3. Push [Shift] again to turn OFF the function.• “SHIFT OFF” is briefly displayed, and then the transceiverreturns to the Normal mode.• The Shift mode enables a programmable function key tohave two functions.