and 4L. The complete structure of a call sign depends on the class (purpose) of a station and differs for broadcasting, official, and amateur radio stations. Call signs for amateur radio stations have a complicated makeup and contain the most information. They often indicate through a code ...
In 1983 the FCC ended its supervision of call letter disputes, and two years later the Patent and Trademark Office gave broadcasters the right to protect their call letters. Since then, several radio stations have gone to court, claiming trademark infringement by competing stations on call letters...
Call signs actually originated before there was radio. Telegraph offices along a telegraph line would be assigned one- or two-letter call signs by the railroad or telegraph company that owned them. For example, VI was the call sign for the Vincennes, IN telegraph office. HF was the call sig...
Radio stations identify on-air with four letter call signs, begining with "JO", plus -FM suffix where applicable (eg. JOAK-FM). Primary language on radio is Japanese. Area: 377 930 km²; Population: 123 million; ITU country code: J; callsign prefix: 7J~7N, 8J~8N, JA~JS; RDS ...
Callsigns – allows you to practice receiving random amateur radio callsigns, a mixture of letters and numbers (eg AA9PW, G1SNT, G5RV) that often prove troublesome when copying code on the air. HamMorse creates a wide variety of international callsigns using the standard ITU prefixes to pr...
Mystique of the Three-Letter Callsigns- By Thomas H. White History of American Broadcasting-- From Jeff Miler Even More Radio History Links Hammond Museum of Radio Broadcasting History Links- Excellent - ByElizabeth McLeod Man's Encounter with the Electron- Lots of History ...
摘要:Amateur radio station callsigns continue by far to be the number-one subject of questions from readers, especially callsigns that may be chosen by the licensee. We constantly get mail and inquiries from radio amateurs asking why they didn't get a particular station callsign. This month,...
Aircraft Call Signs When identifying yourself, always provide: Aircraft type, model, or manufacturer Your aircraft registration number Registration Number: The first letter of your tail number indicates the country prefix (typically leave this letter out of the call sign in your registered country) ...
an elusive endorsement that at one time was provided by the awards department of the ARRL –“Worked All States with Two-Letter callsigns in the Extra Class portion of 75 Meters” – Otherwise known as the Geratol Award, or as they call it, the “Unbelievable Operating Achievement Award“....
WPIR was seen as an important communications tool. A letter in student newspaperThe Prattler, following student activism efforts and turmoil in 1969, states, “The utilization of radio, WPIR, posters and flyers through quantity and quality, can also aid in securing an informal, involved student ...