No, nothing so simple. Remember only a small group of RVers need it to be so automatic, the main customers set it up once in a fixed location. Also remember that most RVers are frugal so since adding the extra capability will make it more expensive and therefore it will not sell well. It is not difficult to deal with setting it for your location and if it seems too difficult you can do what most people do and not have a weather radio.

We use the Oregon Scientific WR-601 and have had no issues with it.  I've seen them advertised for less than $30. I don't know of any radio's that will alert without setting the SAME code.  I do know that you can enter partial SAME codes.  The codes are normally 6 digits long.  If the SAME code is 304003 the breakdown is:

3      04   003

|       |     |> Code for Cochise County

|       |> Code for Arizona

|> Code for northeast sub-section of Cochise County

You can enter just the first 3 digits and 000 for the county and the radio would alert for a the entire state of Arizona.  You can also use a 0 for the sub-county (position 1).

One thing you do have to check for is the NOAA receiving station.  There are 7 possible frequencies that the NOAA stations transmit on and they will change as you move around the country.  You need to ensure that your radio is set to receive the NOAA broadcast wherever you are located.  Some radio's may handle this for you automatically, but with mine I need to set the radio to receive the channel with the strongest signal.  If you are not receiving the 24/7/365 weather broadcast your radio will not activate on alerts from the SAME code.