[TowerTalk] Metal roof

Chris Burger ChrisB@prism.co.za
Mon, 11 Jun 2001 09:26:35 +0200


Some anecdotal evidence that could be useful.  In 1988, I operated as
3DA0/ZS6BCR.  I used a Butternut HF2V on 160, in the middle of a corrugated
iron barn roof, perhaps 20 x 40 m in size and peaked.  

The SWR was very close to what I would have expected for a perfect ground.
The amp wouldn't load, and the exciter cut back to less than 50 W to protect
itself.  Yet, I managed to work 35 US stations at sunrise on the first
morning, in about 17 minutes!

Purely anecdotal, but it appears that a metal roof does have some redeeming
features.

Chris R. Burger
ZS6EZ


PS:  If you don't do metric units, that barn was about 40 x 80 cubits, or 10
x 20 spans...   ;^>

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