Radio Hobbies Radio Hobbies In the radio industry, an aircheck is generally a demonstration recording, often intended to show off the talent of an announcer or radio disk jockey to a prospective future employer. A scoped aircheck contains only segments where the announcer is actually talking. An unscoped aircheck is simply where all programming is left intact, including music, commercials, newscasts, or whatever happened to be on the air at the time the recording was made. ...more on Wikipedia about "Aircheck"
Amateur radio, often called ham radio, is a hobby enjoyed by many people throughout the world. An amateur radio operator, ham, or radio amateur uses two-way radio to communicate with other radio amateurs for public service, recreation and self-improvement. ...more on Wikipedia about "Amateur radio"
In times of crisis and natural disasters, Amateur radio is often used as a means of emergency communication when wireline and other conventional means of communications fail. Recent examples include the 2001 attacks on the World Trade Center in Manhattan, the 2003 North America blackout and Hurricane Katrina in September, 2005, where amateur radio was used to coordinate disaster relief activities when other systems failed. ...more on Wikipedia about "Amateur radio emergency communications"
Citizens' band radio (CB) is, in the United States, a system of short distance radio communication between individuals on a selection of 40 channels within the single 27 MHz (11 meter) band. The CB radio service should not be confused with FRS, GMRS or amateur radio. CB does not require a license and unlike amateur radio, CB may be used for commercial communication. ...more on Wikipedia about "Citizens' band radio"
DXing is the hobby of tuning in and identifying distant radio signals. Many DXers also attempt to receive written verifications of reception (sometimes referred to as " QSL's" or "veries") from the stations heard. The name of the hobby comes from DX, telegraphic shorthand for "distance" or "distant". ...more on Wikipedia about "DXing"
The Family Radio Service is an improved walkie talkie system authorized in the United States. This personal radio service uses frequencies in the UHF band, and so does not suffer the interference effects found on Citizens Band (CB) at 27 MHz, or the 49 MHz band also used by cordless phones, toys, and baby monitors. FRS uses FM instead of AM, and has a greater reliable range than license-free radios operating in the CB or 49 MHz bands. ...more on Wikipedia about "Family Radio Service"
The General Mobile Radio Service (GMRS) is a land-mobile UHF radio service in the United States available for short-distance two-way communications to facilitate the activities of an adult individual and his or her immediate family members, including a spouse, children, parents, grandparents, aunts, uncles, nephews, nieces, and in-laws (47 CFR 95.179). ...more on Wikipedia about "General Mobile Radio Service"
MW DX, short for mediumwave DXing, is the hobby of receiving, or simply the reception of distant mediumwave (known outside radio circles as "AM radio" in North America) radio stations. MW DX is similar to TV and FM DX in that broadcast band (BCB) stations are the reception targets. However, the nature of the lower frequencies (530 - 1700 kHz) used by mediumwave radio stations is very much different from that of the VHF and UHF bands used by FM and TV broadcast stations, and therefore involves different receiving equipment, signal propagation, and reception techniques. ...more on Wikipedia about "MW DX"
PMR446 (Personal Mobile Radio, 446 MHz) is a radio frequency part of the UHF range that is open without licensing for personal usage in most members of the European Union. It has roughly the same use as FRS in the United States. Depending on surrounding terrain range can vary from a few hundred meters (in a city) to a few kilometers (flat coutryside). ...more on Wikipedia about "PMR446"
A radio-controlled model (or RC model) is a model that is steerable with the use of radio control. All types of vehicles imaginable have had RC systems installed in them, including cars, boats, and planes. ...more on Wikipedia about "Radio-controlled model"
A scanner is a radio receiver that automatically tunes, or scans, 2 or more discrete frequencies. Generally, scanners cover the non-broadcast radio bands between 30 and 950 MHz using FM, although there are models that cover more of the radio spectrum and use other modulation types. ...more on Wikipedia about "Scanner (radio)"
TV DX and FM DX are two terms, customarily grouped together, that refer to long-distance reception of TV and FM radio stations, respectively. The term DX is an old telegraph term meaning "long distance." These terms refer to the active search for distant radio or television stations received during unusual tropospheric lower atmospheric weather-related, or E-layer and F2-layer upper atmospheric ionospheric conditions. ...more on Wikipedia about "TV-FM DX"
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