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Home : Technical Reference : DTMF

• DTMF CTCSS and ECHOLINK  ^new - A Novice Note For DTMF, CTCSS and ECHOLINK Starters
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• DTMF Functions  ^new - In Sysop mode, EchoLink can be configured to accept commands through the local receiver using DTMF tones
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• DTMF in amateur radio  ^new - About usage of DTMF Dual Tone Multi Frequency in ham radio applications
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