Thanks... I guess.
I suppose the GMRS thing just confuses me. I thought those frequencies were open to anyone, just like CB radio. And as such I didn't understand why it was mixed in with public service/first responder frequencies in the database. So I assumed it must be something new that I wasn't up to speed on.
In that MyGMRS site it discusses getting a license from the FCC to use it. So apparently it's not the same thing as the 2-way radios you can buy from big box stores.
I'm not an expert, but I'll try to give you the quick and dirty explanation. This applies to the USA. I'm not familiar with the laws in other countries.
FRS (Family Radio Service) and GMRS (General Mobile Radio Service) are very similar. GMRS uses the same frequencies as FRS and a few additional ones. GMRS also allows more power, different antennas, repeaters, and a few more options.
FRS does not require a license. But it's pretty limited. The radios have a very short range.
GMRS requires a licence. It;s easy to get. You just go on the FCC website and pay for it. One license covers you and your immediate family. IT's great if your family wants to use radios and need the extra range. Some people even put up repeaters. They may allow anyone with a license to use it, or may require a fee or club membership.
Most of the bubble pack radios you find in stores are made to work with FRS and GMRS. They just trust you not to use the GMRS channels until you get the license.
GMRS and Amateur Radio are totally different things and different licenses.
The wiki has a lot of good information.
General Mobile Radio Service - The RadioReference Wiki