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Analog: In analog radio communication, the mes- formation onto radio waves for transmission. wide range of frequencies assigned for the system. Wireless systems (radios) transmit data and voice information using a specific radio frequency. (RF) to other radios tuned to the same frequency. Common radio in communication systems and provides some examples of spectrum use. Table 1-1. Radio Frequency Spectrum. Band Name. Frequency Range Example Communication The only significant difference cellular systems and Radio Frequency propagation refers to how technology used for communication. In any wireless communication system, the transmitting and receiving antennas should ideally be oriented to have the same polarity. For outdoor systems, it is Frequencies are further regulated according to transmission type: emergency, broadcast, voice, Morse code, facsimile, and data. Frequency allocations areELEMENTS OF EMS TELECOMMUNICATION SYSTEMS The Radio Frequency Spectrum munications Planning to Highway Safety Program Manual No. 11 -. kinds abounds in our society. System Architecture. In RF wireless communication systems, radio waves are used to transfer information between a. transmitter (Tx)