AM radio


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AM radio

[¦ā¦em ′rād·ē‚ō]
(communications)

AM radio

(Amplitude Modulation radio) Radio broadcasting in the 540-1610 kHz frequency band (in the Americas) with 10 kHz spacing between channels. AM technology modulates a carrier by varying the signal strength, not by frequency as with FM. For 30 years starting in the 1920s, AM flourished in the so-called "Golden Age of Radio." However, starting around the late 1950s, FM's higher fidelity became popular for music listening. Most AM radio stations today broadcast news, talk, traffic and weather. See FM radio and shortwave radio.
References in periodicals archive ?
A partnership led by Arte Moreno, owner of The Angels, today agreed to purchase and assume the operations of Radio 830 KMXE, the nation's largest Spanish language AM radio station.
The Company owns and operates 159 FM and 60 AM radio stations in 49 markets, located in 24 states across the country.
Summary: It has been announced Dave Lee Travis has been taken off his Magic AM radio show.
What could possibly persuade the owner of a local AM radio station to buy another AM radio station, this one with very low power?
The company owns and operates 177 FM and 66 AM radio stations, with formats that span the spectrum.
I've found calling into AM radio talk shows to be an effective way to pass along information to large, politically active audiences, and to suggest alternative sources of information like World Watch.
Sir Alan saysIN the days when AM radio was very popular, you worked on a special receiving aerial, so much so that you have been able to pick up AM radio stations from as far afield as Holland and even listened to very weak signalled stations such as those transmitting from hospitals.
Anyone on the George Eliot Hospital site with an AM radio can hear broadcasts on 1386 AM.
13 /PRNewswire/ -- Mikros Systems Corporation (OTC Bulletin Board: MKRS) has been testing its proprietary AM Radio Transmission technology in the Denver, Colorado, area to demonstrate the effectiveness of Data Transmission on the AM radio in a mountainous environment.
In Colorado Springs the station broadcasts on AM radio.
A new study addressing the quality of AM broadcasts when stations reduce the bandwidth of their transmitted signals to below 10 kHz is providing the National Radio Systems Committee (NRSC) with valuable information on possible ways to improve the listener experience with AM radio.
For example, AM radio uses frequencies from 535 to 1605 kilohertz, but frequencies from 1800 to 29,700 kilohertz are available for amateur use.