Rick,
Don't think you are going to home brew any kind of self supporting mast to
get the center up to the 30-35 foot level, which is a good height to shoot
for. Whether using metal, fiberglass, pvc, or wood, they will all need
some guying.
Also not sure I understand your dimensions, but if you only have 79 feet,
that will be tight to get a 102 foot antenna into, although it can be done.
Yes, the ladder line or twin lead should be kept away from metal, so if
using a metal mast, use pvc standoffs to keep it a few inches away from the
mast.
Since it's your first wire antenna install, be very, very, sure you know
where the power lines are, and keep far away. Baked ham is nice, but not
when it is a sizzling pile in the back yard.
Perhaps a sighted ham in your area could scout out your QTH. Someone with a
little experience could possibly give you some ideas on attachment points
or guying suggestions not obvious to you or your helper. It might save you
some time, effort, money, and give you a better performing antenna in the
end.
73, Steve KW3A
----- Original Message -----
From: "Rick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, May 06, 2010 3:22 PM
Subject: G5RV installation questions.
> Hi list.
> I just ordered a G5Rv, and would like to ask you all for advice on how =
> to install it.
> I've never put up a wire antenna before, and my help has never put up =
> any kind of antenna, so I'll have to provide the know how.
> Here's my situation.
> I plan to put it up as an inverted V.
> I have 79 feet by no more than 20 feet to put it in.
> I didn't measure the width.
> I cant attach anything to the house, so it will have to be a free =
> standing mast.
> I don't have room to put in guywires.
> My shack is on the second floor.
> Now for my questions.
> How much free standing mast can I safely use?
> What do I do with the ladder line?
> If I understand right there is 33 feet of ladder line, and it's not a =
> good idea to have it near metal.
> Thanks in advance for any help, and 7 3.
>
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