Communicating with Sound

Questions? Send email to klotz@graflex.org.

Whistled Languages

Listen to this show at NPR: http://tinyurl.com/yntpuo.

Morse Code Tutor

Download software: http://c2.com/morse

Oscilloscope software for Windows

Download from Indiana University: http://tinyurl.com/yg27ge

Make your own Morse Code Key

http://tinyurl.com/bsbx7

Build a radio receiver

http://www.qrpme.com Look for "Sudden Storm Kit"