on_one_wheel wrote:I cant think of any use for FM ... so if I was looking at it id think its 50% useless, but it sure looks pretty and quite cheep.
FM refers to the type of modulation used by the radio in the same way a radio can be AM or SSB.
The radio is also capable of receiving the FM broadcast band. The normal FM you're probably used to listening to music on.
All UHF CB radios use FM.
Dual band refers to the radio covering both the VHF and UHF bands, you cannot legally use any part of the VHF band unless you hold a current Amateur license, even then you must use the allocated frequencies. You really can't use this radio for CB although it can be programmed for the CB channels, it isn't type approved, you risk interfering with essential emergency services as well as normal commercial users if you do use it to transmit on other than the 80 CB channels.
VHF = Very High Frequency.
UHF = Ultra High Frequency.
Listed below are some of the ways your voice can be used to influence the radio signal and turned back into the voice that's heard at a receiver.
AM = Amplitude Modulation.
FM = Frequency Modulation.
SSB = Single Side Band.
I've tried to keep things simple, I hope my post does more to explain than it does to confuse.
