The TYT TH-9800 offers the standard CTCSS tones and User CTCSS. The value entered for User CTCSS replaces the standard CTCSS frequency value for the radio to use.
See it done in this video and learn the trick to setting up Tone Squelch so it works successfully.
TH-9800 User CTCSS and Tone Squelch Setup
03/26/2024
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