User Tools

Site Tools


howto:stationcoax

This is an old revision of the document!


Station Coax

This is how VA7FI manages his coax runs into the house. It's meant as an example to help people get started, not as a definitive authority on the subject. Feedback is always welcome.

Outside

outside.jpg On the coax side:1)

  • LMR400 is used for most antennas to the transition box.
  • The box shown here is 9“×9”×4½“, but I would probably use the next size up if I did it again: there's never enough antennas!
  • Two pieces of flattened copper pipe are used as bus bars.
  • The coax from the antennas connects into the coaxial lightning protectors (also referred to by one of the brand names: Polyphaser), which are mounted on the bus bars, which are grounded.
  • From there, RG-8X coax is used to go inside the house.

On the grounding side:

  • The antennas up the tree are grounded to a few ground rods and a ground plate.
  • Those are bonded to the ground plate that connects to the transition box.
  • That is also bonded to the utility ground of the house.
  • And is bounded to a central grounding point inside the house.

Inside

inside.jpg

1)
Click on any of the pictures to zoom in.
howto/stationcoax.1625968986.txt.gz · Last modified: 2021/07/10 19:03 by va7fi