Anderson, Harry R. H. R. Anderson and Associates, Inc., Consulting Engineers, Eugene, Oregon.
Last reviewed:January 2020
- AM Medium-Frequency Band
- AM transmission standards
- AM station allocation criteria
- Transmitting antennas
- Medium-frequency signal propagation
- Broadcast service area
- AM stereo
- FM VHF Band
- FM transmission standards
- FM station allocation criteria
- VHF signal propagation
- FM VHF service area
- Subcarrier transmission
- Shortwave Broadcasting
- Technical standards
- Frequency assignments
- Shortwave signal propagation
- Shortwave service areas
- Digital Audio Broadcasting
- Satellite Broadcasting
- Related Primary Literature
- Additional Reading
The transmission, via radio-frequency electromagnetic waves, of audible program material for direct reception by the general public. Electromagnetic waves can be made to travel or propagate from a transmitting antenna to a receiving antenna. By modifying the amplitude, frequency, or relative phase of the wave in response to some message signal (a process known as modulation), it is possible to convey information from the transmitter to the receiver. In radio broadcasting, this information usually takes the form of voice or music. See also: Electrical communications; Electromagnetic wave transmission; Modulation; Radio
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