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#1
July 8th 07, 05:08 PM
posted to rec.radio.amateur.antenna
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Rohn 25G without guys, how high?
On Sun, 8 Jul 2007 08:51:57 -0400, Jimmie D wrote:
Strange thing, we took the tribander down first and the antenna swayed more after it was removed. ^^^^^^^ ITYM "tower" Mass... Inertia... Mass moment of inertia... Of course, if it ever starts swaying dramatically, the same factors come into play. Jonesy -- Marvin L Jones | jonz | W3DHJ | linux 38.24N 104.55W | @ config.com | Jonesy | OS/2 *** Killfiling google posts: http://jonz.net/ng.htm |
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#2
July 8th 07, 05:29 PM
posted to rec.radio.amateur.antenna
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Rohn 25G without guys, how high?
"Allodoxaphobia" wrote in message ... On Sun, 8 Jul 2007 08:51:57 -0400, Jimmie D wrote: Strange thing, we took the tribander down first and the antenna swayed more after it was removed. ^^^^^^^ ITYM "tower" Mass... Inertia... Mass moment of inertia... Of course, if it ever starts swaying dramatically, the same factors come into play. Jonesy -- Marvin L Jones | jonz | W3DHJ | linux 38.24N 104.55W | @ config.com | Jonesy | OS/2 *** Killfiling google posts: http://jonz.net/ng.htm Yes I meant "tower" |
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#3
July 8th 07, 08:14 PM
posted to rec.radio.amateur.antenna
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Rohn 25G without guys, how high?
Depending on how it is supported at the base and where it might be supported
somewhere in the middle - freestanding to 50 ft. Any other height needs to be guyed! "Jimmie D" wrote in message ... "Allodoxaphobia" wrote in message ... On Sun, 8 Jul 2007 08:51:57 -0400, Jimmie D wrote: Strange thing, we took the tribander down first and the antenna swayed more after it was removed. ^^^^^^^ ITYM "tower" Mass... Inertia... Mass moment of inertia... Of course, if it ever starts swaying dramatically, the same factors come into play. Jonesy -- Marvin L Jones | jonz | W3DHJ | linux 38.24N 104.55W | @ config.com | Jonesy | OS/2 *** Killfiling google posts: http://jonz.net/ng.htm Yes I meant "tower" |
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