[TowerTalk] Vertical Radials

[Dave_K9NX]

Rod

For three years I had the "luxury" of running my B'nut HF6 (with no wire
radials) on top of an all metal "out building" which was 30' x 40' with a
sloping all metal steel roof . I also had a full sized 80M vertical (wire
supported from a rope between two 100' tall pines) working against 30 wire
radials laying on top of the ground. In comparison the B'nut was always
(and only) 1 S unit (what ever that means on a TS-850)  down from the full
sized antenna. To my way of thinking this is a pretty good endorsement of
the metal roof as the B'nut is less than 1/8 wave tall on 80M and not the
most effecient radiator on that band (it really worked out well on 40M).
Dave
K9NX

At 05:54 AM 8/14/98 -0600, Rod Greene wrote:
>
>Dave, I have often wondered how a vertical would play if
>mounted on top of a metal roof. Could the metal roof 
>panels be used for the 'ground' instead of radials? It 
>would seem that the roof would actually be better than
>radials.  Any ideas?  I have a metal roof over my shack ..
>
>Rod
>
>At 10:02 PM 8/13/1998 -0500, Dave Nissen wrote:
>>Hello to all..
>>
>>I need your help with my new vertical anntenna..
>
>>Now to the problem.. I plan on installing the anntenna on a 30'X30' roof of
>a metal building.. Does anyone have a idea as to how to make/install the
>radials?? The anntenna will be mounted on a tri-pod, the roof is about 15'
>high, from ground level..
>>
>
>>TNX
>>73
>>Dave de W9COP
>
>
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