No, radio communications are not only used with 2 way radios. They can be picked up on many frequencies, that are not necessarily considered to be 2 way radios.
CB stands for Citizen's Band, which is a band (11Meters) on the radio spectrum dedicated to use by the general public who are forbidden by law from radio transmission elsewhere.It was established by, and is monitored by the Federal Communications Commission (FCC.)
The word radio is both a noun (radio, radios) and a verb (radio, radios, radioing, radioed). Examples:Noun: My radio looks like a model from the fifties but it has a CD player.Verb: The sergeant ordered Sparky to radio headquarters for more ammunition.
Marine band radios are two-way radios which are used either in a military setting or by officers for easy communication. The purpose of these radios is to get a greater range of communcation.
They are not always different. If the communication is between two radios directly, only one frequency is used. This is called simplex operation. It works fine because only one radio is transmitting at a time. When two radios communicate through a repeater to increase the distance, the repeater must simultaneously receive from one radio while retransmitting the signal to the other radio. A single frequency would not work because the repeater would only hear its own output. So, two frequencies are used. This is called duplex operation. The above information is partially incorrect. Simplex and duplex do not refer to how many frequencies are used. They refer to the way traffic (data and voice) are sent and received. The reason for different receive and transmit frequencies is for retransmitting (like stated above) and for satellite communications. Satellites receive on one frequency, then modify, amplify, and retransmit the signal on a different frequency to prevent bleedover.
One can purchase used transmission radios from many different sources. If one is looking for an online source, ebay and amazon provide excellent used wares. Stores such as radio shack and auto zone may also selled used transmission radios.
UHF radios are handheld radios. They are a great 2 way radio that are used by police, children, and hikers. They can be used by anyone needing to communicate via 2 way radio in the outdoors or indoors.
CB stands for Citizen's Band, which is a band (11Meters) on the radio spectrum dedicated to use by the general public who are forbidden by law from radio transmission elsewhere.It was established by, and is monitored by the Federal Communications Commission (FCC.)
The sun's corona and chromosphere can interfere with our radios. These regions of the sun emit radio waves that can sometimes overlap with the frequencies used by radio communication on Earth, causing disruptions and static in radio signals.
It appears that a marine band radio would work on land but is not supposed to be used for only inland communications. Marine to inland or mobile vehicles can use these but it can be illegal to use them inland. See http://en.wikipedia.org/wiki/Marine_VHF_radio
Cellular Radio
Radios are radios . . . some are used by broadcasters, some are used by the military, some are used by ordinary people, and some are used by amateur radio operators (Hams). Guglielmo Marconi invented the radio. (Goo-LYEL-moe marr-CONE-ee)
Radios are radios . . . some are used by broadcasters, some are used by the military, some are used by ordinary people, and some are used by amateur radio operators (Hams). Guglielmo Marconi invented the radio. (Goo-LYEL-moe marr-CONE-ee)
The word radio is both a noun (radio, radios) and a verb (radio, radios, radioing, radioed). Examples:Noun: My radio looks like a model from the fifties but it has a CD player.Verb: The sergeant ordered Sparky to radio headquarters for more ammunition.
Listen In (intercept radio communication)
During World War II, the Germans used various radio communication systems, including the FuG (Funkgerät) series of radios, which were designed for both ground and air operations. The Wehrmacht employed portable and vehicle-mounted radios for coordination among troops, while the Luftwaffe utilized airborne radios for communication between aircraft and command centers. Additionally, the Enigma machine was used for encrypting messages to secure communications against interception.
Marine band radios are two-way radios which are used either in a military setting or by officers for easy communication. The purpose of these radios is to get a greater range of communcation.
There are a few types of waterproof marine radios. There are radios which are used to communicate in case of emergency or need and there are radios which are used to play local radio stations for listening pleasure. They come in the waterproof variety to ensure proper functionality when out on the water. They are designed to function in wet conditions.