QRM on 20m - 09/08/2022

I activated G/DC-007 today and 20m was working very well into Europe. However, from 14.282 to 14.308 there was serious QRM (strong, “da-da-da-da” type noise). This made this portion of the band totally unusable. Anyone any ideas what would be causing this?
Alastair, M0TYM

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Did it sound like this? Radar, CODAR in 20M ham band, May 27, 2012, 1436 UTC - YouTube

John, VK4TJ

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Yes. It could well be RADAR. There is a radio station at St Just not far away so they may have added new RADAR equipment.