The Icom IC-51E PLUS2 but not the American version will emit a 1750Hz tone burst when you push the PTT briefly and then hold it down.
What is this for?
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asked Sep 29 '17 at 17:20
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The 1750 tone burst is widely used in European the same way that CTCSS/PL and DCS is used for repeater access in the US. I used tone burst exclusively when living in Germany. Tone burst never caught on in the US.
