Now I've read the link.
There is some good information on it, but not much. As they said the output power is pretty low and the antenna is a vital component. When you buy one of these they should tell you that you are required to have a GMRS license from the FCC to operate on every channel. Without a license you are only legal to use the FRS channels which are restricted to 1/2 watt. (While this is what a lot of cell phones operate at, they are a whole different system and can't be used for comparison.) Most people who own these operate them illegally by the way and don't get the license, that is up to the user and that's all I'm going to say about it.
As the link said, the GMRS frequencies will operate at a higher output power, and not that big of an increase, but their downfall is the antenna. To be legally sold they must have a FRS compliant antenna which is permanantly attached and most of them are pretty poor excuses for an antenna to start with. If you buy them, make sure you compare output powers listed on the package before you do.
Many of them are advertising more than 22 channels which is a lie, they are restricted on what they can use.
MURS compliant. MURS, Multiple Use Radio Service, is five channels that can be used by anyone with radios that comply with the FCC regulations. It has a maximum output limit of 2 watts but does allow removeable antennas. For some reason MURS hasn't caught on like FRS/GMRS, probably due to the advertising that made everyone think you need a lot of channels. There are a few radios being made now that are compliant in that they were made specifficly to operate on this service. Before you had to use business radios and cut the power down. These radios seem to be of better quality and cost about the middle of the FRS/GMRS price range. At least they did when I bout mine.
CB handhelds can use the full legal limit of 4watts of output power and are the best choice if power is what you want, especially with their 40 channels and removeable antennas, but they use a lot of battery power too.
