“RF Seismograph” Improved to Better Reflect Band Activity

The Scanning RF Seismograph, a real-time HF propagation-monitoring tool developed by the MDSR Team and Alex Schwarz, VE7DXW, now can show both combined band noise and activity and just band activity. The RF Seismograph, which covers 80, 40, 30, 20, 15, and 10 meters, is a project of the North Shore Amateur Radio Club (NSARC).