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Summary

Continuous Tone-Coded Squelch System – CTCSS, Codes, & NAC Conversions Freq. (Hz) Motorola Code NAC Conv NIFC & CA Fire * Freq. (Hz) Motorola Code NAC Conv NIFC & CA Fire * Freq. (Hz) Motorola Code NAC Conv NIFC & CA Fire * 67.0 XZ $29E 17 107.2 1B $430 10 173.8 6A $6CA 29 69.3** WZ $2B5 ------ 110.9 2Z $455 1 179.9 6B $707 30 71.9 XA $2CF 18 114.8 2A $47C 11 186.2 7Z $746 31 74.4 WA $2E8 19 118.8 2B $4A4 28 192.8 7A $788 16 77.0 XB $302 20 123.0 3Z $4CE 2 203.5 M1 $7F3 32 79.7 WB $31D 21 127.3 3A $4F9 12 206.5 8Z $811 ------ 82.5 YZ $339 22 131.8 3B $526 3 210.7 M2 $83B ------ 85.4 YA $356 23 136.5 4Z $555 4 218.1 M3 $885 ------ 88.5 YB $375 24 141.3 4A $585 13 225.7 M4 $8D1 ------ 91.5 ZZ $393 25 146.2 4B $5B6 5 229.1 9Z $8F3 ------ 94.8 ZA $3B4 26 151.4 5Z $5EA 14 233.6 M5 $920 ------ 97.4 ZB $3CE 27 156.7 5A $61F 6 241.8 M6 $972 ------ 100.0 1Z $3E8 9 162.2 5B $656 15 250.3 M7 $9C7 ------ 103.5 1A $40B 8 167.9 6Z $68F 7 254.1 0Z $9ED ------ - NAC Conversion - “$” indicates hexadecimal value.

• California FIRESCOPE tone list, used by NIFC and CA Fire Agencies.

Reference: firescope.caloes.ca.gov/ICS%20Documents/2020%20MACS-441-1.pdf

• • 69.4 in some radios