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WDGC-FM
WDGC-FM is a high school radio station located in Downers Grove, Illinois. The station is shared between Downers Grove North and Downers Grove South high schools, with the transmitter residing at Downers Grove North. When student DJs are not on the air, a computer program that plays songs on shuffle and inserts station identifications and public service announcements is turned on. History WDGC-FM's origins lie in a carrier current station started in 1966. It was then known as WDGN and operated at 600 AM. WDGC-FM was granted a construction permit on November 25, 1968.History Cards for WDGC-FM fcc.gov. Retrieved May 18, 2020. On February 28, 1969, WDGC-FM began broadcasting with 10 watts of power on 88.3 FM. In 1974, the station's effective radiated power, ERP was increased to 250 watts, using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrier Current
Carrier current transmission, originally called wired wireless, employs guided low-power Radio frequency, radio-frequency signals, which are transmitted along electrical conductors. The transmissions are picked up by receivers that are either connected to the conductors, or a short distance from them. Carrier current transmission is used to send audio and telemetry to selected locations, and also for low-power broadcasting that covers a small geographical area, such as a college campus. The most common form of carrier current uses longwave or medium wave Amplitude modulation, AM radio signals that are sent through existing electrical wiring, although other conductors can be used, such as telephone lines. Technology Carrier current generally uses low-power transmissions. In cases where the signals are being carried over electrical wires, special preparations must be made for distant transmissions, as the signals cannot pass through standard utility transformers. Signals can bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |