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Old 18th Jun 2019, 9:38 pm   #54
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,558
Default Re: Save our 2 Metre Band.

The 'cure' for the 'how to go back to an unknown CTCSS equipped repeater' problem is for CTCSS equipped radios to have a 'CTCSS Capture' mode, which would work like this:

-If the last transmission received on the currently selected frequency had a CTCSS tone embedded on it, the radio stores the value of the CTCSS tone.

-The next time the radio is keyed up it will automatically transmit the same CTCSS tone.

The 'Auto CTCSS tone memory' will be cleared if:
-A transmission is subsequently received on the same frequency with no CTCSS tone.
-The operating frequency is changed.
-If another transmission is received on the same frequency but with a different CTCSS tone, the new CTCSS tone will be auto-adopted.

All of the above has one crucial requirement, that the repeater or gateway should transmit its CTCSS tone as well as receive it. I'm not sure if that is the case.
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