Hi all,
I have a G 5 R v here that I purchased from W 8 A M Z up there in Michigan.
The vertical window line is 450 ohm and requires at least 70 feet of 50-52
ohm coax between the window line and the radio in order to work properly.
No baluns are required.
The G 5 R V's of today are a bit different to work with today's radios as
Butch stated.
73
Howard #3
----- Original Message -----
From: "Butch Bussen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, August 14, 2012 8:20 AM
Subject: Re: G5RV and RFI/TVI?
> If you'll check my message, I said what we buy today and use today is
> not the original design. Today's design used with coax works with
> todays radios with builtin tuners. I know full well what the original
> was, I've read articles, what I'm talking about is the antenna most of
> build or buy today. One commercial one I bought and used for many years
> used a current balon at the point where the ladder line hooked to the
> coax. They suggested at least fifty feet of coax and I used this thing
> at college with great success. Although it differs from the original,
> we unfortunately still call this antenn a g5rv.
> 73
> Butch
> WA0VJR
> Node 3148
> Wallace, ks.
>
>
> On Tue, 14 Aug 2012, David
> W Wood (G3YXX) wrote:
>
>> Wrong wrong wrong
>>
>> When Lou designed the G5RV coaxial cable wasn't available to the =
>> amateur.
>> His system was designed to work on the then six major ham bands, in =
>> conjunction with a particular LC network for tuning.
>> The introduction of coax at a later stage introduced a level of =
>> imbalance.
>> He came to our local radio club some years ago where he went through the
>> =
>> design process and practical implementation of his design.
>>
>>
>> David W Wood
>>
>> Ham call - G3YXX
>> FOC # - 1685
>> Licensed - 1969
>> =20
>> -----Original Message-----
>> From: For blind ham radio operators =
>> [mailto:[log in to unmask]] On Behalf Of Butch Bussen
>> Sent: Tuesday, August 14, 2012 1:27 PM
>> To: [log in to unmask]
>> Subject: Re: G5RV and RFI/TVI?
>>
>> Not necessarily true. Strictly speaking, a half wave dipole is a=20
>> ballanced antenna. Although somewhat a different design than the=20
>> original g5rv, those you buy today use the ballanced line as a sort of=20
>> tuning stub, and most state you should run at least 50 feet of 50 ohm=20
>> coax to the radio. I ran one like that for years and it worked great.=20
>> I also once ran a double sized one that worked fine on 160 Antenna=20
>> lengths were doubled as well as the tuning stub.
>> 73
>> Butch
>> WA0VJR
>> Node 3148
>> Wallace, ks.
>>
>>
>> On Tue, 14 Aug 2012,=20
>> David W Wood (G3YXX) wrote:
>>
>>> The G5RV is a balanced antenna, hence coax really shouldn't be part of =
>> =3D
>>> the system. Probably high currents on the braid of the coax.
>>>
>>> 73
>>>
>>> David W Wood
>>>
>>> Ham call - G3YXX
>>> FOC # - 1685
>>> Licensed - 1969
>>> =3D20
>>> -----Original Message-----
>>> From: For blind ham radio operators =3D
>>> [mailto:[log in to unmask]] On Behalf Of Tom Brennan
>>> Sent: Tuesday, August 14, 2012 3:00 AM
>>> To: [log in to unmask]
>>> Subject: Re: G5RV and RFI/TVI?
>>>
>>> Tom, I've never had any rfi/tvi with my G5RV even in very close =3D
>>> quarters.
>>> However, you need to make sure all connections are good and have a =
>> good =3D
>>> rf
>>> ground on your rig. Also, I've fround less problem using a coax G5RV =
>> =3D
>>> rather
>>> than a plain wire one.
>>>
>>> Tom
>>>
>>>
>>> Tom Brennan KD5VIJ, CCC-A/SLP
>>> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
>>>
>>> --
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>>
>>
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