Links

 https://github.com/CGrassin/hairpin_filter
Repeaters
 http://anglelinear.com/repeaters/repeaters.html

The hairpin in air.
Must be enclosed in a Faraday cage to eliminate radiation losses.

  • 1st try, very broadband

  • Better

  • scan of Better

The hairpin, good but difficult to adjust
I'm suspecting my box is being a cavity.

  • 1st try, 3.4GHz

  • SAAv2 scan cover on