![4: The High Frequency Transmitter and Antenna Array in HAARP, Gakona, AK | Download Scientific Diagram 4: The High Frequency Transmitter and Antenna Array in HAARP, Gakona, AK | Download Scientific Diagram](https://www.researchgate.net/publication/241063421/figure/fig4/AS:298554989006870@1448192464967/The-High-Frequency-Transmitter-and-Antenna-Array-in-HAARP-Gakona-AK.png)
4: The High Frequency Transmitter and Antenna Array in HAARP, Gakona, AK | Download Scientific Diagram
Aircraft alert radar | aircraft, sky | To ensure aircraft safety, this alert radar is used anytime the ionospheric research instrument (IRI) is operating. In addition to a temporary flight... | By
![NWS Sacramento on Twitter: "715 AM Radar Update 📡 Moderate to heavy rain continues this morning across much of NorCal. If you encounter flooded roadways: turn around, don't drown! #CAwx https://t.co/JudIHPrLgI" / NWS Sacramento on Twitter: "715 AM Radar Update 📡 Moderate to heavy rain continues this morning across much of NorCal. If you encounter flooded roadways: turn around, don't drown! #CAwx https://t.co/JudIHPrLgI" /](https://pbs.twimg.com/tweet_video_thumb/FlUOQl0acAY0V4J.jpg:large)