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The following radio stations broadcast on AM frequency 630 kHz: 630 AM is a regional U.S. broadcast frequency. [ 1 ] 630 kHz is a Philippine clear-channel frequency used by NTC. DZMM share Class A status at 630 kHz and being defunctional because of legislative franchise lapsed
On May 14, 1963, at 6:30 am, CHED switched to 630 kHz. Beginning in 1959, CHED aired a Top 40/CHR format. [1] Jerry Forbes ran the first 630 CHED Santas Anonymous in 1955. The charity provided 600 toys to children in its first year and is still run annually as of 2020. In the latest edition, the toy drive provided toys to over 20,000 children. [2]
The 630-meter (or 600-meter) amateur radio band is a frequency band allocated by the International Telecommunication Union (ITU) to amateur radio operators, and it ranges from 472–479 kHz, or equivalently 625.9–635.1 meters wavelength.
630 metres – 472–479 kHz; Just below the commercial AM broadcast band and the maritime radio band. 160 metres – 1 800–2 000 kHz (1.800–2.000 MHz) Just above the commercial AM broadcast band. Allocations in this band vary widely from country to country; it was formerly shared with the largely defunct Loran-A radionavigation system.
AM station classes were previously assigned Roman numerals from I to IV in the US, with subclasses indicated by a letter suffix. Current class A is equivalent to the old class I; class B is the old classes II and III, with class D being the II-D, II-S, and III-S subclasses; and class C is the old class IV.
In the Americas (defined as International Telecommunication Union (ITU) region 2), the FM broadcast band consists of 101 channels, each 200 kHz wide, in the frequency range from 87.8 to 108.0 MHz, with "center frequencies" running from 87.9 MHz to 107.9 MHz. For most purposes an FM station is associated with its center frequency.
WSBN (630 kHz) is a commercial AM sports radio station licensed to Washington, D.C., and serving the Washington metro area. It operates with 10,000 watts in the daytime and 2,700 watts at night using a directional antenna around the clock. WSBN's studios are on Jenifer Street in Northwest Washington. [2]
A radio band is a small frequency band (a contiguous section of the range of the radio spectrum) in which channels are usually used or set aside for the same purpose. To prevent interference and allow for efficient use of the radio spectrum, similar services are allocated in bands.