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Image FM 97.9 (Nepali: इमेज एफ.एम. ९७.९) is a Nepalese FM radio station, established on January 7, 1999. [1] Initially Image FM 97.9 was known as KATH FM 97.9 and was started out with a few hours of test transmission.
Image News FM (Nepali: इमेज न्युज एफ.एम.) is the first and only 24-hour all-news radio channel in Nepal, broadcasting on 103.6 FM in Kathmandu. It was established in September 14, 2008. [1] It is owned by the Image Group of Companies, which also runs Image Channel, Image FM 97.9 and Image Khabar.
Most amateur digital modes are transmitted by inserting audio into the microphone input of a radio and using an analog scheme, such as amplitude modulation (AM), frequency modulation (FM), or single-sideband modulation (SSB). Amateur teleprinting over radio (AMTOR) D-STAR (Digital Data) a high speed (128 kbit/s), data-only mode.
Image response (or more correctly, image response rejection ratio, or IMRR) is a measure of performance of a radio receiver that operates on the superheterodyne principle. [1] In such a radio receiver, a local oscillator (LO) is used to heterodyne or "beat" against the incoming radio frequency (RF), generating sum and difference frequencies.
With the growth and development of the Nepali music industry, different award ceremonies are held in different parts of the country, some focusing local talents. Awards of national level are held each year by some media houses, namely Hits FM, [30] Image FM, [31] Radio Kantipur Music Awards., [32] Music Khabar Music Award. [33]
An American FM radio transmitter in Buffalo, NY at WEDG. Edwin Howard Armstrong (1890–1954) was an American electrical engineer who invented wideband frequency modulation (FM) radio. [12] He patented the regenerative circuit in 1914, the superheterodyne receiver in 1918 and the super-regenerative circuit in 1922. [13]
The power of an AM radio signal plotted against frequency. fc is the carrier frequency, fm is the maximum modulation frequency. In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, that are the result of the modulation process. The sidebands carry the information transmitted by the radio ...
A dual-conversion receiver may have two intermediate frequencies, a higher one to improve image rejection and a second, lower one, for desired selectivity. A first intermediate frequency may even be higher than the input signal, so that all undesired responses can be easily filtered out by a fixed-tuned RF stage.