In a message dated 99-07-28 21:11:10 EDT, wa4dou@excite.com writes:
> I started digging the guy points manually because i wanted to use the
> holes as forms and i asked around here and the concensus was that i should
> dig them all the way to 4 ft. deep, even if i thought the amount of
concrete
> was overkill for a 53 ft. tower.
It's not "overkill" if that's what the manufacturer's spec is.
> Now i find myself thinking about grounding and breaking up the top guy
> wires into non-resonant lengths.
> How much real pattern distortion or influence is there likely to be
> because i didn't break up the top guys into non resonant lengths?
Hard to predict. It might be a little or it might be a lot - from
little influence to severe pattern skew and high swr. I think that one of the
current antenna modelling programs will calculate guywire interaction.
> There is a good chance i'll add many heavy radials at the base of the
> tower in due time to make it worthy of shunt feeding on lower bands. This
> should augment the d.c. ground system. I plan to attach those ground rods
to
> the tower with #2 stranded copper and will connect all 6 ground rods with
> same.
> I'm inclined to leave the top guy wires intact and ground each guy point
with an 8 ft. ground rod(copperplated).
> What do you all think?
Not much based on your statement about grounding the guys. You would be
essentially grounding your antenna. Not a good idea in my book.
> This thing is comming together and happening!!! I'm
> excited! :o)
That's great! Prior planning will prevent poor performance.
Cheers, Steve K7LXC
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