[TowerTalk] Earth Ground: How good is good enough

[Grant Saviers]

https://dh1tw.de/how-to-measure-ground-conductivity/

RE "good enough" depends on the antenna plus a lot more.

Grant KZ1W

On 9/9/2021 09:41, Artek Manuals wrote:
> I 've read a lot of articles over the years about ground systems and how 
> to build a good one. Most of them ignore actual soil conditions and few 
> talk about the differences between "DC/AC (Low Freq)/Lightning" and RF 
> ground vs frequency
> 
> But how do I actually measure it ?  And once I have this number how good 
> is "good enough"
> 
> Take my situation I live on ancient sandbar 65' above sea level In 
> Florida . Now this is practically a mountain in Florida and the soil is 
> so poor that below about 6" nothing but granular quartz exists, mostly 
> not even roots, a desert with a lot a rainfall.  The soil is so soft 
> that I can push the first 5' of a 10' ground rod in by hand. I often 
> wonder why my house doesn't sink into it and from a phenomena called 
> "sink holes" a  few house do.
> 
> So to coin a take on the old light bulb joke " How many engineers with 
> 10' ground rods does it take to make a good  ground (RF ground in this 
> case@ 1.8 Mhz) and how will they know when they have enough 10' rods"
> 
> Dave
> NR1DX
> 
>