[Qcwa] Mounting dipole in attic

Mon, 7 Oct 2002 19:39:53 -0400

On Mon, 7 Oct 2002 16:23:54 -0400 "Keith Kotch" <[email protected]>
writes:
> I just mounted my first HF antenna in the attic...a dipole.  I've 
> run
> ladder line to my tuner and have the antenna, which is 18 gauge 
> stranded
> insulated wire, "hanging" using TV twinlead standoffs screwed into 
> the
> trusses.  Each leg is approximately 70' long and the antenna is bent 
> in order to fit it in.
> 
SOUNDS GREAT,  Keith.  It ought to work quite well.
>
> My question is the mounting procedure.  Since this antenna's 
> orientation
> is east-west, I'm thinking of putting another up north-south.  Could 
> the
> wire, since it is insulated, be stapled up to the roof trusses?
> Installation would go much quicker and easier since the north-south
> antenna would have to be bent back a forth a couple of times to get 
> the
> length up there.  I'm assuming it would not be a problem as I 
> understand
> you could just lay a wire antenna right on the roof shingles if
> necessary.
> 
There should be no problem with stapling the antenna wire to wooden 
supports,  be they roof trusses or studs.   However,  DO NOT staple 
your twinlead feedline to anything.  There MUST be at least 6 inches 
of clearance to any metal or conducting material around your twinlead.
Never nail or staple it to anything.
>
> The other possibility is running a loop around the entire attic or 
> the eaves outside.  Stapling would be so much quicker and easier.
> 
THAT WOULD also work fine,  fed with twinlead thru the antenna
tuner so that the wire each side of the antenna center is of equal
length.
>
> Keith, KF4BXT
> 
>    -- 73,  Alan,  KJ9N,  Tech Specialist,  Antennas and Feedlines. 
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