site:www.edaboard.com rf ground

HI ALL!
I need information about the construction of a very good rf grounding system for a radio system that works on HF bands (2-30 MHz).

Any reference, info or everything you think should help would be very much
appreciated.

Thanks,
hello

Is this for the antenna efficiency or protection from lightning and mains faults?

In order of simplicity, the mains fault protection is specified by the laws in your country. Follow them and all will work properly.

For lightning protection, the wire from the lightning rod to the ground system should be straight with no inductive type bends or coiling. The ground system can be a set of buried wires below the surface of the earth.

For the antenna efficiency, it is the sheet resistance of the surface of the earth that must be reduced. First choice is a metal grid like metal fences covering the whole area within several wavelengths of the antenna. Next best is wires going out in all directions from directly under the antenna.

i try to explain...
the rf ground is needed to put all the radio to gnd as requested from their specification.

The system consists of a hf transceiver, a matcher and a linear amplifier feedline and antenna.
All the first 3 component should be grounded.
Antennas are 40 meters apart.

Thanks

This might help

http://w*w.radioworks.com/nbgnd.html

Typically in the past I have used the common point ground system (without the line isolators) as seen in Figure 5. I sometimes used three ground rods if the soil conductivity is poor. The rods are 10 feet long and driven into the ground in a triangle pattern. Everything is then tied together with wide copper strap.

you can goto rf-microwave.com