And the coax should come away from the feed point at 90 degrees for ~1/4
wave...
73'
Larry
W1DYJ
----- Original Message -----
From: "Alex Malyava" <alex.k2bb@gmail.com>
To: "Bob Maser" <bmaser@tampabay.rr.com>
Cc: <TowerTalk@contesting.com>; <ve3gsi@canada.com>
Sent: Tuesday, December 16, 2008 5:17 PM
Subject: Re: [TowerTalk] balloon supported antenna
> He will need to use BIG baloon then...
> In case of vertical the workload is the radiator wire only, when
> dipole needs to lift good length of coax as well.
>
> On Tue, Dec 16, 2008 at 5:04 PM, Bob Maser <bmaser@tampabay.rr.com> wrote:
>> A vertical dipole require no radials as it is center fed.
>>
>> Bob W6TR
>> ----- Original Message -----
>> From: "Eric - VE3GSI" <ve3gsi@sympatico.ca>
>> To: <TowerTalk@contesting.com>
>> Sent: Tuesday, December 16, 2008 10:00 PM
>> Subject: Re: [TowerTalk] balloon supported antenna
>>
>>
>>> Gregg,
>>> There is a article in this January QST using a balloon loop antenna, I
>>> see
>>> no reason it can't be resized and used on 160 meters. It might be worth
>>> a
>>> look at for your project. Also, a few years back in QST there was an
>>> interesting article on using a kite for a 160 meters with 1/2 vertical
>>> dipole antenna.
>>>
>>> I suspect you would need a pile of ground radial to be effective with a
>>> 1/4
>>> vertical, while the loop might be a more wire friendly way to go and
>>> possibly safer. Not being a 160 meter kind of guy, I suspect others will
>>> verify the number of radials required for balloon vertical antenna.
>>> 73 Eric - Ve3gsi.
>>>
>>>
>>>> -----Original Message-----
>>>> From: Gregg Seidl
>>>> Subject: [TowerTalk] ballon supported antenna
>>>>
>>>> Has anyone ever done this? I want to use a weather ballon to support a
>>>> vertical dipole for 160 during the upcoming contest. I have plenty of
>>>> room
>>>> with no chance of the antenna hitting or coming in contact with HV
>>>> power
>>>> lines. What size ballon,where did you get it from.......??I'd only have
>>>> it
>>>> up during the contest. Gregg K9KL
>>>
>>>
>>> _______________________________________________
>>>
>>>
>>>
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>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>> _______________________________________________
>>
>>
>>
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