KKTL is a commercial radio station licensed to Casper, Wyoming, United States. KKTL airs a classic country music format. KKTL previously carried Coast to Coast AM before it was picked up by sister sta
KKTL AM1400ESPN logo
FM broadcasting is a radio broadcasting method that uses frequency modulation transmissions. In November 1919, Hans Idzerda began broadcasts, using narrow-band FM, over station PCGG, located at The Ha
KKTL
…watts in 1959. It was sold in 1963 to Casper Family Radio Inc. and again later to Mod-com Broadcasting. The debut of a new station KTRS-FM, then on 95.5 FM, created heavy competition for the AM signal, and in 1987 the station signed off. KATI had lost revenue due to a softening local economy, and major…
A commercial 35 kW FM radio transmitter built in the late 1980s. It belongs to FM radio station KWNR, in Henderson, Nevada, and broadcasts on 95.5 MHz.
FM has better rejection of static (RFI) than AM. This was shown in a dramatic demonstration by General Electric at its New York lab in 1940. The radio had both AM and FM receivers. With a million-volt arc as a source of interference, the AM receiver produced a roar of static, while the FM receiver clearly reproduced a music program from Armstrong's experimental FM transmitter in New Jersey.
Crossed-dipole antenna array of station KENZ's 94.9 MHz, 48 kW transmitter on Lake Mountain, Utah. It radiates circularly polarized radio waves.
Armstrong's first prototype FM broadcast transmitter, located in the Empire State Building, New York City, which he used for secret tests of his system between 1934 and 1935. Licensed as experimental station W2XDG, it transmitted on 41 MHz at a power of 2 kW.