Hi John,
Your note came just in time! I canceled the real estate deal to extend
my Bevs!!!
Actually this past winter I was able to extend a "worthless" broadside
pair of 720-footers on Europe, spaced only 200 feet, to 950 feet long
and they really started to play. It's now my best Rx antenna to Europe
-- beating out a stagger pair of 750-footers and the original stagger
pair of 535-footers. There are of course high-angle times when the
shorter ones are best.
Another broadside pair of 935-footers, spaced only 175 feet, has been a
killer to JA for several years.
73/Jon AA1K
On 7/15/2010 07:14 AM, john battin wrote:
> I put up the killer beverage to europe... two staggered 1500' phased with two
> more spaced 5/8 wave. It was useless .... I shortened them to about 700
> feet and it worked fine but not much better than my reference phased pair or
> 580 footers. Eventually I removed the staggered ones as they did nothing but
> improve f/b and did nothing for signal to noise. I still use a pair of 1500
> footers to Japan; a few times a year they are better than shorter ones. I am
> a believer in the vertical angle issue. Switching lengths is interesting if
> you were in a part of the world where there were areas of interest at vastly
> different distances.
>
> John
>
>
>> Date: Thu, 15 Jul 2010 02:19:33 +0000
>> From: k3bu@optimum.net
>> To: topband@contesting.com
>> Subject: Re: Topband: Beverages
>>
>>
>>> k3bu@optimum.net wrote:
>>>
>>>> I have seen situations when long Bev (1600') on a sloping
>>>>
>>> terrain was worse to Eu than Inv Vee. When shortened to about
>>> 600' it was a "killer".
>>>
>>>> Then long phased Bev at W8LRL were hearing JAs while short
>>>>
>>> ones were "dead".
>>>
>>>> Makes big difference in a contest.
>>>>
>>>>
>>>>
>>> This inspires me to a (perhaps under-educated) pitch for
>>> exploration of
>>> a novel antenna: An Adaptive Elevation Angle MEMS Beverage.
>>>
>>>
>>> Seriously, I wonder what challenges would be realized in trying
>>> to use a
>>> set of mechanical relays to incrementally lengthen or shorten a
>>> Beverage
>>> to sweep elevation angle, albeit while distorting F/B and
>>> beamwidth....
>>> I'd certainly purchase the journal that published such a paper.
>>>
>>>
>>>
>>>
>>> 73,
>>>
>>> - Josh / KF4YLM
>>>
>>>
>> This can be done by breaking say 1500 ft Beverage into 3 segments with two
>> relays inserted at 500 and 1000 ft points, switching between next wire
>> segment and termination resistance.
>>
>> Some pictures of W8LRL installation are at
>> http://www.teslaradio.org/w8lrl.htm
>> white posts support phased and staggered Beverages. Also pictures of RX
>> vertical 8 array.
>>
>> 73 Yuri K3BU.us
>> _______________________________________________
>> UR RST IS ... ... ..9 QSB QSB - hw? BK
>>
>
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
>
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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