# Addressing poor Earth resistance on hill top

I work in a radio station situated on a hill top. The Earth resistance measured at this location is quite high, measuring around 9 Ω. There is no deep gorge nearby to make a fresh Earth Pit. How can I reduce the Earth resistance in my station?

• @Andyaka Lightning is damaging my expensive eqpt. Sep 2, 2022 at 8:13
• @seccpur... About the best you can do is dig out an area in which to lay down criss-crossed 1/2" rebar rods, tied together with ground-rod clamps like these -- not just wire-wrap, and poured over with a slab of concrete. Make sure one of the rebar rods is bent upwards and out of the concrete so you can clamp directly to it. You won't get better. It's called a Ufer ground after the professor who analyzed it. Resistance into Earth will be about as low as it can get. Do not use copper wire in the mix!
– jonk
Sep 2, 2022 at 8:14
• @DDuck Thanks. Agreed. The problem is that that OP has a separate question about lightning protection. The Ufer ground can only be one part of a well-designed system. I don't want to write an answer here knowing full well that the OP is also dealing with a serious problem regarding lightning strikes, as well. There's a full design required. And I'm not prepared for that. (For example, the rise time for the initial current can be as short as $10\:\text{ns}$! And any good design accounts for both inductance and resistance, as just one part of much else.)
– jonk
Sep 2, 2022 at 9:18
• @seccpur to measure resistance you need to have a reference point and a measurement point. What/where were those two points? Sep 2, 2022 at 9:48
• @seccpur In the meantime, have a look at this link regarding the Ufer ground. It is very much worth a read. I don't use wire-ties. Instead, I use something like these very cheap brass screw-ties to couple the rebar together. It's very tight, solid, and works very well. ( I get them for about US\$1 each.) But use what you can. Regardless, the Ufer ground is the best you can get.
– jonk
Sep 2, 2022 at 9:50