The High Frequency Active Auroral Research Program

HAARP

 
 
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Spectrum Monitor Waterfall Chart


This chart is a waterfall plot of the readings taken by the Spectrum Monitor for the last 36 hours. The vertical axis is the frequency, ranging from 1 - 30 Mhz and the horizontal axis is the UTC time. Spectrum samples are taken every few minutes. The color indicates intensity of received signal at each frequency, ranging from deep blue for the weakest signals to red, yellow and white for the strongest signals.
Chart
Higher-Resolution 24-hour Chart:
Today's Chart

Chart Archives:
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