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In use, ARRL Numbered Radiograms are messages encoded as one or two numbers. The numbers are always written down as words, and are always preceded by the procedure word "ARL". Throughout their transit in the Amateur radio National Traffic System, they retain this format and are only expanded to their plain-English meaning when delivered by a Ham.
An ARRL radiogram is an instance of formal written message traffic routed by a network of amateur radio operators through traffic nets, called the National Traffic System (NTS). It is a plaintext message, along with relevant metadata (headers), that is placed into a traffic net by an amateur radio operator.
An ARRL radiogram is an instance of formal written message traffic routed by a network of amateur radio operators through traffic nets, called the National Traffic System (NTS). It is a plaintext message, along with relevant metadata (headers), that is placed into a traffic net by an amateur radio operator.
For the special purpose of exchanging ARRL Radiograms during National Traffic System nets, the following prosigns and signals can be used, most of which are an exact match with ITU-R and Combined Communications Electronics Board (military) standards; a few have no equivalent in any other definition of Morse code procedure signals or abbreviations.
FCC amateur radio station license of Al Gross. In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations.
The ARRL publishes various technical books and online courses. Members of the organization also have access to a special Members Only section of the ARRL web site that includes technical documents, expanded product reviews of amateur radio equipment, expanded contesting information, and a searchable database of all league publications.
Data can include object Global Positioning System (GPS) coordinates, non-directional beacon, weather station telemetry, text messages, announcements, queries, and other telemetry. APRS data can be displayed on a map, which can show stations, objects, tracks of moving objects, weather stations, search and rescue data, and direction finding data.
WSPR (pronounced "whisper") is an acronym for Weak Signal Propagation Reporter.It is a protocol, implemented in a computer program, used for weak-signal radio communication between amateur radio operators.