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4 port PVC array rev 2 (tape measure dipoles) 4 port PVC array rev 2 (tape measure dipoles):


This is a hand-held portable doppler antenna, using a similar design to the classic tape-measure beam.

The combiner board is mounted on the boom. It's not really designed to be waterproof though.

It may be the only example of a truly portable, hand-held doppler.


  1 boom feed  
   11 antenna feed  
   11b antenna feed schematic  
   12a ready  
   12b ready  
   13a folded  
  1 boom feed     11 antenna feed     11b antenna feed schematic     12a ready     12b ready     13a folded  
  13b folded  
   13c folded closeup  
   13d folded closeup  
   13e folded closeep  
   2 box glued  
   3 box feed  
  13b folded     13c folded closeup     13d folded closeup     13e folded closeep     2 box glued     3 box feed  
  6 combiner antennas attached  
   7 combiner install  
   8 combiner install  
   9 control and radio attached  
  6 combiner antennas attached     7 combiner install     8 combiner install     9 control and radio attached  


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last updated 12/08/2023 at 23:31:35 by make_www_index.command version 2023.12.08.B