TXTSQSCNDUPGSCALHOLDMONPRISRCSQTINSTMEMCB POLICEVOXCTCSSBCLDCSUNIDEN Model uh015sx UHF CB RadioIndicatorsIndicatorsRef. Item Page Ref. Item Page16 SCN - Scan 11 29 BCL - Busy Channel Lockout 1617 TSQ - Tone Squelch 18 30 DCS - Digital Coded Squelch 1718 TX - Transmit 10 31 S/RF - RF Strength Meter -19 GS - Group Scan 12 32 DCS/CTCSS Code Indicator 1720 DUP - Duplex 10 33 Channel Number Indicator 921 HOLD - Hold 11 - 15 34 MEM - Memory 11,1322 CAL - Tone Call 20 35 SRC - Search 1323 MON - Monitor 9 36 POLICE - Police channel 924 PRI - Priority 12 37 CB - CB channel 925 SQT - Squelch 9 38 Frequency Indicator 926 INST - Instant Channel 1627 CTCSS - Continuous Tone 17Coded Squelch System28 VOX - Voice Activation 16537 3638