Davies, Doug A FOR:EX wrote:

> We need to get VHF signals to and from an area about 40 miles south of us
> through a mountain valley.  For this particular repeater, that is the only
> area it will serve in addition to us locally.  Someone suggested using two
> stacked Yagi's pointed directly down the valley.  I've never seen Yagi's
> used in repeater service.  Will this scheme work?  Are there any pifalls to
> be aware of?  Any and all comments are welcome.
> 
> Doug  VA7DD
> 

Yup-it'll work. A group here tried it back in the 70's. They had two 
4-element cushcrafts pointed E/W along Lake Erie. It was solid 10W 
mobile coverage for 50-60 mi along the lake (or more), but less then 10 
mi to the south was gone. Unusable.
I would say take your existing omni, and with a power splitter, split a 
4-element pointed the way you want and see if it does what you want 
without sacrificing too much locally. Play with separation a little, 
too. Phasing will likely be an issue.

-- 
Jim Barbour
WD8CHL





 
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