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Re: Topband: Hindering factors in the science of back yard 160m vertical

To: topband@contesting.com
Subject: Re: Topband: Hindering factors in the science of back yard 160m vertical inst...
From: Merv Schweigert <k9fd@flex.com>
Date: Sun, 06 Nov 2011 05:17:08 -1000
List-post: <topband@contesting.com">mailto:topband@contesting.com>
One caveat with the RBN and monitoring two signals etc.  Be sure that you
know the fellows you are monitoring so to speak,  during contests and
DX chasing there are many using Eimac antenna tuners,  so 3DB from one
station to the neighbors is not a sure sign of antenna efficiency.
Its a lot more common than you may wish to think.
Merv  K9FD/KH6
> On Sat, Nov 5, 2011 at 1:42 PM,<PaulKB8N@aol.com>  wrote:
>    
>> RBN is a useful tool, and I'm a "junkie" for it, but it, too, has some
>> anomalies and limittions.
>>      
> The very best RBN comparisons are for an entire contest, between two
> stations in the same metro area, or same part of a state, in the same
> general geographic category.  There is an RBN beta graph function that
> will allow you to pick an RBN station and then the call signs for
> comparison on the graph.  You can then see a day's worth of signal
> readings on two different color graph lines. You can discern even 2 dB
> of difference quite reliably.  It doesn't tell you why of course.  But
> it does a really good job of how much.  You can also download a whole
> day's worth of readings and import them into Excel for further
> analysis. If you can get yourself within a few dB of a good performing
> station, you will do well.   If there are time of day dependent
> differences, those will show up too.
>
> 73, Guy
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
>    

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UR RST IS ... ... ..9 QSB QSB - hw? BK

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