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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