Icom IC-R9500 Instruction Manual - Page 118

8 SCANS ■ Tone scan [F-1•Y] [F-2•Z] [F-4•DEF] [F-6•T-SCAN] [TONE] [FM] [EXIT/SET] The receiver can detect subaudible tones or the DTCS code in a received signal. By monitoring a signal that is being operated with tone or DTCS squelch function, you can determine the tone frequency or DTCS code necessary to open a squelch. q Set the desired frequency or memory channel to be checked for a tone frequency. w Push [FM] to select FM mode. e Push and hold [TONE] for 1 sec. to enter tone fre- quency screen. r Push [F-1•Y] or [F-2•Z] to check the tone squelch frequency or DTCS code, respectively. t Push [F-6•T-SCAN] to start the tone scan. • "SCAN" blinks while scanning. y When the tone frequency is detected, the tone scan pauses. • The tone frequency is set temporarily on a memory channel. Program into the memory channel to store the tone frequency permanently. • The decoded tone frequency is used for the tone squelch frequency or DTCS squelch code. u To stop the scan, push [F-6•T-SCAN]. • Push and hold [F-4•DEF] for 1 sec. to select the default frequency. i Push [EXIT/SET] to exit tone frequency screen. 8-16