Propagation: Trans-equatorial scatter (TE)

   
 
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24 April 2017, 4:35 UTC 


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Propagation:
  Sporadic E skip (Es)
  Backscatter
  Tropo
  Meteor Scatter (MS)
  F2 Skip
  Aurora
  Trans-equatorial scatter (TE)
  Lightning scatter (LS)

Propagation
by Glenn Hauser 
News

Trans-equatorial scatter (TE)
TE seldom reaches very far north of the Tropic of Cancer, but it may link up with Es or tropo as previously explained. DX'ers in the southern tier of states from Texas to Florida should be on the lookout for TE in the spring and fall; September 1 is the traditional start of the fall TE season.

Video is more disturbed and useless in TE than in any other propagation mode, since the MUF flutters with extreme rapidity. Audio channels may be readable, however, TE usually builds up after sunset, peaking around 2000 local time; it may bring in the same station for hours at a time, night after night. Distances of several thousand miles are not unusual, and even stations not strictly on the other side of the equator may come in by this method, if they're beyond 1800 miles or so. TE can reach as high as about 65 mHz, i.e., channels 2 and 3 in the American system.

 


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