Citizens Band Radios, or CB for short, is a convenient public, two-way personal radio service communications that truck camper (TC) can use when traveling together (such as in a caravan) or when passing other TCs going the other direction. Because of the CB radio’s limited signal range, a conversation is usually brief when inquiring about weather, traffic, road conditions, accidents, possible detour routes, etc.
You do not need a license to use a CB radio. However, TCers need to abide by some regulations. For example, the user must always give the first concern to emergency communication messages regarding immediate life safety situations and refrain from using that channel until the emergency has ended. Although you can use any channel for conversation,
channel 9 
is reserved for emergencies or asking for traveler assistance,
and channel 11 
is for calling other CBers.
Channel 19 is the trucker’s channel in most areas of the country.
What is the range of a CB radio – What can you expect for CB radio distance? Those are excellent questions, and considering various variables, they are challenging to answer. Generally, CB radios have a range of around 4-7 miles vehicle-to-vehicle, depending on the model, antenna, and external factors that may affect the range. For example, the antenna quality generally determines the CB radio’s average range.
Standard features in many makes and models of consumer CB radios have access to National Oceanic and Atmospheric Administration (NOAA) weather channels and weather alerts.
There are seven radio frequencies designated specifically for NOAA weather broadcasts. These frequencies are used by a network of transmitters across the US to broadcast weather information, warnings, and alerts 24 hours a day, 7 days a week, 365 days a year.