Unknown Radar

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Unknown Radar
Screen Shot 2015-10-02 at 6.56.53 PM.png
Frequencies 4.41 MHz
Frequency Range 4.41 MHz - 4.41 MHz
Mode AM
Modulation FSK
Bandwidth 7 kHz
Location Oregon City, Oregon, USA
Short Description I often see this signal, and it lasts for literal hours. It sounds very similar to a microwave running, and looks as if Kontayner had a little brother. It's a strong signal, but not as strong as the PLUTO radar.
I/Q Raw Recording
Audio Sample


This radar signal I see is form the University of Twente's shortwave remote receiver. This radar signal has been going on for the day, starting at 14:00 (2:00 PM) and ending at around 20:00 (10:00 PM) It has a very monotone sound, and is a pretty strong signal. I haven't seen another Unidentified Signal page with it, unless i'm missing something. As for the waterfall, it has around 8 channels and looks like a smaller, more condensed version of the OTHR Pluto. Here's another picture of it, but from farther away. It's the signal that I have the yellow frequency scroller on.