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Freeware to generate DTMF, CTCSS, 1750 and other audio tones.
OS : Windows XP and later, 32 & 64 bits.
Language : English.
The Linux/Ubuntu/Androïd users may use TONE_Encoder via WINE 1.0 or CROSSOVER.

TONE_Encoder was created to test the settings of the SIMPLEX repeater software but it can obviously be used for any activity requiring audio tones.

To download, go directly to the

Here after are screenshots of the main window : (not active ! Download and install to try it)