Earth’s Frequency Just Locked onto Something Strange

A strange signal has been dominating the Schumann Resonance chart for nearly 36 hours straight.
Unlike the normal spikes and pulses we typically see, this appears as a long-duration horizontal signature stretching across the graph hour after hour.
What’s making this so unusual is that horizontal signals are not considered part of normal lightning-generated Schumann activity.
Whether it’s a man-made source, an instrumentation anomaly, or something else entirely, one thing is clear:
The signal isn’t going away.