Sound samples of digital transmissions
- Sound samples of the transmission modes recorded at 11025 samples per second, mono and the message in all of the samples is the same: "the quick brown fox jumps over the lazy dog 1234567890".
K2NCC's YouTube Channel
- Video samples of amateur radio, military, government, domestic and international data transmissions. Covering such digital modes as ACARS, CHIP, DOMINO, JT65, MT63, NAVTEX, and many more by K2NCC Frank
Unusual HF Propagation Phenomena
- This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission.