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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.
CHQT was an AM radio station in Edmonton, Alberta.Owned by Corus Entertainment, the station first launched in August 1965.In June 2008, after having broadcast various music-based formats, CHQT flipped to an all-news format as a counterpart to sister news/talk station CHED.
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
CHED has been operating a news/talk/sports format since 1993. [5] The station's current morning show is hosted by Stacey Brotzel and Daryl McIntyre. [13] Former morning hosts have included Ryan Jespersen, who was fired in September 2020 after comments he made regarding a city councillor's staff, [14] and Shaye Ganam, who began hosting a 9 a.m. show simulcast with Calgary sister station CHQR on ...
The 630 kHz frequency is perhaps best known as the longtime home of KDWB from 1959 until 1986. For almost two decades, KDWB was a heated rival of the original WDGY , located at 1130 kHz. When WDGY dropped its call letters in 1991 to become KFAN, KDWB's owner adopted the abandoned WDGY call sign for 630 kHz, where it remained until 2008.
Among the plans for ABS-CBN and Prime Media's joint venture is the possible revival of DZMM on its frequency 630 kHz. [4] [5] Logo in 2023. On June 26, 2023, 630 kHz conducted a test broadcast under the DWPM callsign. [6] [2] The station made its soft launch on June 30, 2023, as Radyo 630. [7]
The 2 200 metre band is available for use in several countries, and the 2007 World Radiocommunication Conference (WRC-07) recommended it as a worldwide amateur allocation. Before the introduction of the 2 200 metre band in the U.K. in 1998, operation on the even lower frequency of 73 kHz, in the LF time signal band, was allowed from 1996–2003.
A test setup suitable for testing receivers at microwave frequencies is shown in the figure. The two signal generators, F1 and F2, are combined using a directional coupler in reverse. That is, the two generators are connected to what would normally be the coupled and transmitted output ports respectively.