If tough, dried-out roast beef haunts you in your dreams, you know the importance of not overcooking meat. The more beef cooks, the less succulent it becomes; quality declines most quickly past medium, or an internal temperature of 145 degrees Fahrenheit. That's the temperature recommended by the U.S. Department of Agriculture, but for juicy, rare roast beef, you can't cook it that much.
Automatic Packet Reporting System (APRS) is a digital communications system that uses packet radio technology to transmit information and text messages over amateur radio.
Founded in 1914, the American Radio Relay League is the national association for amateur radio in the US. Today, with more than 161,000 members, ARRL is the largest organization of radio amateurs in the United States and the primary source of information about what is going on in the ham radio world.