I usually RV travel in a group of 1 to 2 other RV's. While traveling, we hang out on FRS 3 or 5 and quite often end up in conversation with other travelers. Ch 3 seems to be very popular along 99, Hwy 395, 14 & 15 in Calif, Nev & Ariz. Pretty much everything east from Ariz to Kentuck/Tenn is very quite with exception to the Repeater Channels, which will drive you crazy, lots of cross talk..