Sunday, March 9, 2014

Very strong QRM/interference on the 12 metre band

I recorded this awful noise on 12 metres this morning. It was obliterating all but the strongest signals in the CW portion of the 24 Mhz band. I wonder does anyone know what the likely source of this interference is? I have heard/seen it before, I think on 17 metres. It is not local. I have brought the interference to the attention of the Irish representative for the IARU Monitoring Service.

Update: I had a quick reply from the IARUMS. Apparently this interference is Over The Horizon (OTH) radar. 

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