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| Waterfall plot of readings taken from the last 36 hours and color indicates intensity of received signals at each frequency from deep blue (weakest) to red, yellow, white, for the strongest signals. |
The
HAARP Spectrum Monitor is an automated data collection system with two different antenna systems used to pick up background radio frequency. A discone antenna system is used for frequencies between 30 MHz and 1 GHz in addition to a pair of orthogonal dipoles used for reception below 30 MHz.
Please note HAARP Spectrum Monitoring collects propagated signals from all directions toward Alaska.
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