Kenwood TH-F6A Instruction Manual

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Contents

28SELECTIVE CALLCTCSS and DCSYou may sometimes want to hear calls from onlyspecific persons or groups. In this case, use theselective call function. This transceiver is equippedwith CTCSS (Continuous Tone Coded SquelchSystem) and DCS (Digital Coded Squelch). Theseselective calls allow you to ignore (not hear)unwanted calls from other persons who are using thesame frequency. The transceiver unmutes only whenit receives the signal having the same CTCSS tone orDCS code.Note:uCTCSS and DCS do not cause your conversation to be private orscrambled. It only relieves you from listening to unwantedconversations.uCTCSS and DCS function in only FM mode.CTCSSA CTCSS tone is a sub-audible tone and is selectablefrom among the 42 tone frequencies listed in thetable on the following page. The list includes 37 EIAstandard tones and 5 non-standard tones. You canselect one of the tones to use as a CTCSS tone.USING CTCSSPress [TONE] until “CT” appears.• Each time you press [TONE], the icon cycles asfollows: “ ” (TONE) Þ “CT” (CTCSS) Þ “DCS”(DCS) Þ “ ” (OFF) Þ “ ” (TONE).When the CTCSS function is ON, you will hear callsonly when the selected CTCSS tone is received. Toanswer the call, press and hold the PTT switch, thenspeak into the microphone.Note:uYou cannot use the CTCSS and Tone/ DCS functionssimultaneously. Switching the CTCSS function ON after havingactivated the Tone/ DCS functions deactivates the Tone/ DCSfunctions.uIf you select a high CTCSS frequency, receiving audio or noisethat contains the same frequency portions may cause CTCSS tofunction incorrectly. To prevent noise from causing this problem,select an appropriate squelch level {page 6}.uWhile transmitting the 1750 Hz tone by pressing [CALL]{page 13} , the transceiver does not transmit the CTCSS tone.SELECTING A CTCSS FREQUENCY1 While in CTCSS mode {above}, press [F],[TONE].• The current CTCSS frequency appears.2 Turn the Tuning control or press [ ]/ [ ] to selectyour desired CTCSS frequency.• The selectable CTCSS frequencies are thesame as those for the Tone frequency. Refer tothe table on the following page for the availableCTCSS frequencies.3 Press [ ] or [MNU] to store the new setting.Otherwise, press [ ] or [PTT] to cancel.CTCSS frequency:88.5 HzCTCSS frequency:88.5 HzCTCSS frequency:100.0 HzCTCSS/ DCS:OFFReceivedNotReceivedNotReceived