HEATKEYS

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DX Zone directory with 15000 Amateur Radio links, about Ham-Radio radio scanning, cb radio and shortwave listening, antenna homebrew projects and a complete radio software collection. Include a free classified ads, ham radio reviews and operators di...

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The American Radio Relay League (ARRL) is the national association for amateur radio, connecting to hams around the U.S. with news, information and resources.

Ham radio site with Amateur radio links and a collection of over 2800 Ham Radio sites services verified each week. Including DX band conditions(DX spots) for beginners and seasoned ham operators alike.

Information Related To Ham Radio Communications, Scanning, Shortwave And Electronics Gear

Wired and Wireless IP Communications

Redmine

Amateur radio & electromagnetic wave propagation by Serge Stroobandt, ON4AA.

AMSAT is a worldwide group of Amateur Radio Operators who share an active interest in building, launching and then communicating with each other through non-commercial Amateur Radio satellites. AMSAT designs, constructs and successfully launches comm...

Devoted entirely to amateur radio operators using macintosh

High Performance Software Defined Radio design group, open source design, uses FPGA