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Cabrillo Format & Tutorial
Cabrillo is the standard electronic format used to enter ARRL contests. Click here for an introduction to Cabrillo, Cabrillo templates, and detailed specifications.
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Operating Aids
Find out about ways to improve your operating and help you get better scores. Learn More
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Maps
Download and print out maps that will help you with your contesting. Learn More
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Affiliated Club Competition
Contests are a great way for clubs to encourage activity by the members. Join the fun and compete on a national level... Learn More
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About Grid Squares
Locate your grid square right where you're operating and find your competitors. Learn More
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HF Contesting Guidelines
Learn more about common situations encountered in HF contesting. Learn More
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Operating Resources
Get information on everything from band plans, to the grid locator and propagation and more. Learn More