iiiChapter 4. - Working the menu system 30Basic use 30Using short-cuts 31Chapter 5. - Scanning 33Scanning modes 33Time operation 34Carrier operation 34Search operation 34Tone Scanning 34Scanning for CTCSS and DCS Tones/Codes 34Chapter 6. - Dual Watch 37Chapter 7. - DTMF 39Chapter 8. - Selective calling 41CTCSS 42DCS 441000Hz, 1450Hz, 1750Hz Tone-burst 45Chapter 9. - Customization 46