The Simple Antenna Grounding System by K3DAV
The following three photos are of the new grounding system I built. I installed it on April 1, 2012 in preperation for the two new antennas. The first pic shows the box mounted over where the 4 coax lines enter the dwelling. The box is made of a polypropylene material, and the box is called a SockIt-Box.
It is designed to insulate multiple AC outlet extention cord connections in a sealed waterproof box when working near water or outside if it begins to rain.
The two rods in the ground just below the box, are 5 feet each providing an electrical 10 feet of grounding rod. 10 gauge solid copper wire is used to ground the antennas.
The LMR-400 coax lines that run from the radio bench, exit the wall directly into this box and connect to the barrels. When the lid is attached, the contents of the box are sealed from the outside weather year-round. Not even bees and wasps can get in to make their whopper nests. The yellow tape on each wire is to label them from 1 through 4.
This angle shows the 4 antenna feeds connecting to the box. From top to bottom they are…
- Solarcon I-MAX 2000.
- Comet CHA250B HF Vertical.
- The Dominator 6M.
- Comet GP-9.
Are those ground rods tied into your main feed, so that you have what is called an ‘SPG’ arrangement, aka Single Point Ground ?
If not, have you had any issues with ground loops or rf in the shack at all ?
Just curious, because I have seen ground systems configured in so many different ways, that it almost makes me wonder if you really need your antennas grounded at all, unless you ARE experiencing rf in the shack.
Vince – NN5AA