Since you have already ordered the G5RV, I guess you are committed to going 
that way. But just for the heck of it:  How tall is the tower, what is on 
top of it, and what is the greatest distance from the tower to the end of 
your property?   There may be options here, including slopers, or sloping 
dipoles, or some other configuration of the G5RV using the tower.

It's always nice to put the dipole up just like in the book, with  proper 
angle, nice straight wires and feed point at the highest point.   Many of us 
do just fine with less than textbook installations: wires going off at odd 
angles and taking a few bends along the way.   More than one way to skin a 
cat, so think it through and consider all possibilities.

BTW Since I know you have an amp, I hope  that you have a high power 
external tuner in the shack.   The G5RV needs a tuner to work all bands with 
the possible exception of 20 meters, and the tuner needs to handle  all the 
power your amp can put out.


73, Steve KW3A
----- Original Message ----- 
From: "Rick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, May 07, 2010 9:20 AM
Subject: Re: G5RV installation questions.


> The only power line is the one that comes into the house, and its in the
> backyard.
> I'm putting the antenna along side the house.
> If I used my tower for a center support, the wire would have to go over or
> under the power line, and that's not a good idea.
> ----- Original Message ----- 
> From: "Steve Forst" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, May 06, 2010 9:39 PM
> Subject: Re: G5RV installation questions.
>
>
>> 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.
>>>
>