[BC] Ground system

[Milton Holladay]

FYI, the radials in William's test site were #6 hard drawn copper power 
line wire; I don't know what the licensed sites use. It would be my 
inclination to use half inch or so galvanized guy wire.
If you wish to reduce the end voltage, use longer radials (in the last 
spate of discussion of this subject, there was some data on this.)
As with buried radials, the point of diminishing returns is probably 
around a half  wavelength.; we know it to be four tenths for buried 
radials.......
M

On 2/11/2012 10:27: VIRUS ALERT!, Tom Spencer wrote:
> Why not just use a larger conductor for the four radials?  For example,
> if you were to use #6 cable, switching to #4 - or just running a second
> length of #6 - would double the cross-section, and at MW frequencies,
> skin effect is a lesser concern than at higher frequencies, right?  Or
> use 1" rigid conduit...
>
> As to having a high potential at the far end of the elevated radials...
> wouldn't that be a good thing?  Makes one heck of an anti-theft device,
> and as long as you've exercised due precautions (fences around the
> support poles, warning signage), you should be OK.
>
> Craig Healy wrote:
>>    But I'm also aware that the voltage at the
>> ends is a problem for higher powered stations.

-- 
Milton R. Holladay Jr. / miltron at att.net
Columbia, S. C. / 803-331-8059
RF Measurements / Planning&  Installation / Emergency Service&  Parts