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Anytone 1750Hz Tone AnyTone AT-D578UV

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Apr 12, 2020
Hello together,

I bought an AnyTone At-D578UV and I am unable to activate the 1750Hz tone. I read the operating instructions and programmed the code plug. TBST 1750Hz should be sent with "Hold pressing PTT key, at the same time press UP or DN key on microphone".
However, a DTMF tone is always sent.
Maybe someone can help me.
Thank you very much!


Apr 12, 2012
Works for me, but only with the DN key. That's the left button on top of the microphone.
Two things you'll need to do first though:
1) make sure the slider switch on the side of the microphone is up. That's a key lock selector, in the down position the top mounted mic buttons are inhibited.
2) in the CPS software, you need to make sure TBST is selected to the right tone. Its under Optional Settings > Other > TBST.
Of course, this only works on analogue / FM channels.
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