That (anchor radius = 80% of tower height) is the standard
Rohn recommendation. Closer spacing is viable for shorter
towers and / or smaller antenna loads. For a 130 ft 160M
vertical with NO top load, closer spacing 'may' be OK.
I would use 4 sets (levels) of guys.
I know of two 130 ft R25 towers that have been up in Michigan
for over 30 years with the anchors spaced 35 ft (and 5 sets of
guys). Only wire antennas are supported by the towers
except for a Telrex 3L20 on one of them for a few years.
Tom N4KG
On Mon, 28 Oct 2002 07:59:42 -0800 mwdink@eskimo.com writes:
> Am I reading something wrong here?
>
> For a 130' tower, shouldn't the guys be no
> closer than 104' (80%).
>
> dink, n7wa
>
>
>
> At 08:54 AM 10/28/2002 -0600, tombaugh wrote:
> I'm interested in guys lengths as well. If one were to use 130 feet
> of rohn 25 for 160M or 80M. The nearest other tower is about 300 feet
> away. The guy anchors are about 60' from the base and I plan on guying
> at approx 30, 60, 90 feet. The guy's calculate at approx 67', 84',
and 108'. Looks like we may want to avoid 67', are the other lengths OK
what are the recommendations?
>
> Tom Baugh
> AE9B
>
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