Topband: Beverages

[Jon Zaimes AA1K]

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 at optimum.net
>> To: topband at contesting.com
>> Subject: Re: Topband: Beverages
>>
>>      
>>> k3bu at 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
>
>