[time-nuts] Difference in GPS antennas

[Hal Murray]

> Can you take some photographs ?  It would be intersting to see it.  It
> sounds like some dipoles with phasing lines under them possibly. 

Bruce's call of quadrifilar helix antenna matches what I found via google.

I didn't get a good shot looking down inside the cylinder.  Here is the 
outside view:
  http://www.megapathdsl.net/~hmurray/time-nuts/Lucent-Antenna.jpg


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