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Phil Scovell <[log in to unmask]>
Sat, 8 May 2010 10:51:02 -0600
text/plain (158 lines)
How tall is the mast at the top of the 30 foot tower?  If you can get a 11 
foot or 16 foot mast on top, it will make a big difference in fitting the 
G5RV into the smaller space you have available.

Phil.
[log in to unmask]
WWW.RedWhiteAndBlue.ORG


----- Original Message ----- 
From: "Rick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, May 08, 2010 9:04 AM
Subject: Re: G5RV installation questions.


> The tower is 30 feet, and I think it's like 25 feet from the back porch to
> the back fence.
> Not much room at all.
> Like I said along side the house its 79 feet from the front sidewalk to 
> the
> back fence.
> The backyard is maybe 40 feet wide, and the side yard is maybe 20, but 
> then
> you have the power line coming into the house in the backyard so that cuts
> the room I can use in the back by half.
> On top the tower is an old Antron 99 that's broke and will be coming down.
> Also there is a dual band mag mount for my TmV-7A up there.
> I have an old MFJ 989 Versa tuner I use for the amp.
> ----- Original Message ----- 
> From: "Steve Forst" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, May 07, 2010 10:04 AM
> Subject: Re: G5RV installation questions.
>
>
>> 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.
>>>>>
>>> 

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