Hello,
We have a TS480SAT remote setup that has the units 700 miles apart at times. For extra protection you can set MENU #22 Time Out Timer on the 480 to “3”, “5”, “10”, “20”, or “30” minutes. This should shut down the station from transmitting if something gets locked up.
We have had the RRC devices working now for years and never had a problem so far.
73, Joe, K1ike