has been exploring the sounds beyond what we can hear, recording ultrasound and pitching it down. He made a short...
ultrasonic
North America's Premiere Amateur Radio News Magazine
TWIAR
Headline News
via Hackaday: Rare IBM PC Brought Back To Life
Radio Asheville launches an emergency alert network built to survive a total blackout, like occurred with Hurricane Helene (North Carolina)
Via the RSGB: Learn about HF propagation studies at the RSGB Convention
Via the RSGB: WRTC 2026 results have been rescored
Via the RSGB: GB2RS News Script for 6 September 2026
