Signal strength, drift and recordings for the northern shortwave network. The band strip above is the live one; it is not a screenshot.
Three receivers cover the whole 49, 41 and 31 metre bands without gaps. Every second of every scheduled window is recorded, not polled.
Anything more than 15 dB over the local noise floor is flagged, retained indefinitely and shown on the propagation matrix within a minute.
Twenty-eight years of logs and eight years of audio. No key, no rate limit worth mentioning, and bulk archives by year.
If you are pulling the whole archive nightly, use the bulk file. It is cheaper for both of us and it is the same data.