[BC] Long Wire

[Andy Linton]

Interesting, will try those recommendations!

Thanks,

------------------------

Andy Linton
Kilkenny, Ireland.
 

From:Cowboy <curt at spam-o-matic.net>
Organization:Self

On Thursday 18 February 2010 05:49 pm, Andy Linton wrote:
>  The power lines would be in the 'fall-zone' of a pure vertical quarter
>  wave, and would get in the way of the stays.

 That could be an issue.

>  The wind-up however needs no stays.

 That could be a plus !

>  Can't really load into it, as its on a trailer and has outriggers etc, but
>  I guess I could suspend a vertical wire/pair of wires from it. It'd be
>  electrically short, but I wonder how it would radiate once ATU'd?  

 I'd shunt feed it, preferably a slant wire feed if legal for you.
 That way, you "find" an R match point if one exists, and cancel
 whatever j with an appropriate series reactance. Done !
 Essentially no ATU at all. No complex adjustments, minimal
 engineering. It "just works."

 Failing that, out-rig a drop wire from the top, evenly spaced to the
 base of the stick, and match with whatever ATU. Done.

 Of course, as much ground system as you can manage.
 The closer you can get to a full radial system the better.
 Securely bond the stick itself, including the trailer, to the
 ground system.

 Check your coverage. You should be pleasantly surprised.

--
Cowboy