I'm not copying that, but south of the border traffic on the whole UHF band is one of the reasons the County went to 800 MHz in the mid-1990s. There is no sharing agreement between the US and Mexico for 136-174 and 450-470.
Thanks Don; yes I am aware of the challenges between the two countries. A few years ago, I recall hearing a frantic USFS dispatcher ushering a pilot off a 166.XXXX frequency because of the terrible interference.