I never considered using the WEATHER RADIO with smart modes. It has to be setup for every county you end up in.
I permanently installed the inexpensive RADIO SHACK WX RADIO Model 12-260. I removed the batteries and use the multi-set DC-DC converter power cord with proper DC Adapter and have this WX Radio plugged into 12VDC. The only smarts this WX RADIO has is it will search for the NOAH WX channel when you first turn it on. This solves my problem of having to setup anything as I travel from place to place. It is nice and loud and has served me well over the past 5-years of having my OFF-ROAD POPUP.
This WX RADIO is mounted to back side of the sink assembly that has to be folded up in place when we setup so everytime we stop to setup the POPUP I reset the 12VDC power for the WX RADIO. It finds the working WX Channel and all is ready to go for that area.
When I get my first WX RADIO alert of something coming at us then I fire up the HDTV using the OTA BATWING antenna and look for the local digtal high def NATL BROADCAST TV station that has a 24-hour WX channel going. Being caught out in the POPUP with high winds is unnerving...
Having a good working WX RADIO setup is a must have item IMO if you are camping in a OFF-ROAD POPUP camper.
Here at the house I have the smart mode WX RADIO which only monitors my county for WX Alerts.
Roy Ken