Let’s say I’m on a repeater channel 18 with an uplink of 141.3 to activate the repeater and i have a home base radio that i want to leave on most of the time but dont want to hear all communications. I then set receive tone to say 67.0 or whatever i decide so i only hear transmissions from my mobile radio that is set to same down frequency. Correct? And yes I realize there is no “privacy”.