[Antennas] 248ft dipole

2002年4月21日 05:24:18 -0500

Stay with your 248ft dipole...It looks like a double extended Zepp on 80
meters
and should show gain over a standard dipole. There is an old addage.."The
more wire the better the signal" stick with it.
At 06:11 AM 04/21/2002 -0400, Dave Shrader wrote:
>you have a non symmetrical pattern because of the 90 degree bend. the
>non symmetrical pattern induces currents on the feedline.
>>it is efficient!! your losses are in the tuner. radiated ref is radiated
>rf. losses are heat!
>>w1mce
>>n3drk wrote:
>>>> I dont know exactly what one would call this antenna but i have a 248ft
>> dipole which is about 20ft of the ground at the feedpoint and the ends are
>> 60 ft high. In addition to this, the angle of the ends is 90 degrees apart.
>> So you name what i have here. It is fed with 300 ohm tv twinlead. I
tune it
>> with a roller inductor tuner and use it on 160-10 meters.
>>>> I have heard that the feedline should and/or should not radiate. The length
>> of the present feedline is around 60 ft and it does radiate. So what is it?
>> Should or should not? How do i know the antenna is efficient? And the april
>> issue of Qst talked about horizontal loop antennas which got me to thinking
>> that maybe this is the way to go instead of this present antenna system.
>>>> Your comments would be appreciated. Thanks in advance and please post to
the
>> reflector along with personal emails.
>>>> john
>>>> - - -
>>>> Your moderator for this list is:
>> Larry Wilson KE1HZ [email protected]
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>- - - 
>>Your moderator for this list is:
>Larry Wilson KE1HZ [email protected]
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73
Bob Wilder, AF2HD / AFA2HD(USAF MARS)
TSgt, USAF (Retired)
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Theodore, Alabama 36582-4036
(251)653-5274
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