Knowledge Base:  
Frequency Mute

Last Updated: 12/05/2019
Many radios, especially those from the Chinese manufacturers and distributors, have a feature that is labeled in the programmer as Frequency Mute.

This feature is Sub-Band Mute with options of
  • Off (the mute never engages. Signals are heard on the sub-band regardless of the activity on the main band)
  • Tx (mute engages if you are transmitting on the main band)
  • Rx (mute engages if you are receiving on the main band)
  • Tx/Rx (mute engages if you are transmitting or receiving on the main band).
On a dual display radio, the sub band (that which is not marked "Main" will be silenced based on the option engaged.

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