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Glossary - ARRL
(3) A dot or dash in the Morse code. Elmer — A ham radio mentor or teacher. Emcomm — An abbreviation for emergency communications. Emergency — A situation where ... Learn More
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Code Practice Files - ARRL
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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Sweepstakes - ARRL
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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CW Mode - ARRL
Now simply called "CW", radio communication by Morse code was the only way to communicate for the first decade or more of Amateur Radio. Learn More
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Repeater Terminology/ Glossary - ARRL
DTMF — abbreviation for dual-tone multifrequency, the series of tones generated from a keypad on a ham radio transceiver (or a regular telephone). duplex or ... Learn More
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Contest Glossary - ARRL
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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ARRL International DX Contest Rules
In Single Operator, Unlimited Single‐Band categories, entrants are permitted to promote their activity using online and other non‐amateur radio platforms. Learn More
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Chapter Six: ARRL Precedences and Handling Instructions
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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R.1 NTS ROUTING TABLE BY POSTAL STATE ABBREVIATION (A-L)
Mar 28, 2014 ... R.1 NTS ROUTING TABLE BY POSTAL STATE ABBREVIATION (A-L). NOTE: Regions are not the same as call sign prefix numbers in all cases. Learn More
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ARRL November Sweepstakes Rules
Arranging, soliciting, or confirming any contacts during or after the contest by use of any non‐ amateur radio means. All required elements of a contact must be ... Learn More
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