WA5ZNU
Tuesday, January 12, 2010 Zulu
 
Chinese OTH Radar

With the events in China, it seems likely that the interference on 40m and 60m is from either Chinese or Taiwanese Over-the-Horizon Radar.

Shown here are images from fldigi for the close-in spectrum and quisk with the 96 KHz spectrum, both from an Elecraft K3.

It definitely occurs in bands. There's a strong one in the 60m range, and another just below 40m (shown). It extends into the lower portion of 40m as well, though about 20dB less strong.

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- posted by Leigh @ 16:02 z
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