Some articles on carrier frequencies, frequencies:
... Carrier frequencies are exact multiples of 9 kHz ranging from 153 to 279 kHz, except for two stations in Germany on 177 kHz and 183 kHz ... Until the 1970s, some longwave stations in the Soviet Union operated on frequencies as high as 400 kHz, and there was even a station on 433 kHz in Finland ... Some stations, for instance Droitwich in the UK, derive their carrier frequencies from an atomic clock ...
Famous quotes containing the word carrier:
“We know what the animals do, what are the needs of the beaver, the bear, the salmon, and other creatures, because long ago men married them and acquired this knowledge from their animal wives. Today the priests say we lie, but we know better.”
—native American belief, quoted by D. Jenness in The Carrier Indians of the Bulkley River, Bulletin no. 133, Bureau of American Ethnology (1943)