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To: Radio K0HB <kzerohb@gmail.com>
Subject: Re: [CQ-Contest] N6TJ AXIOMS OF LIFE
From: Bill Coleman <aa4lr@arrl.net>
Date: Wed, 21 Jul 2010 09:03:34 -0400
List-post: <cq-contest@contesting.com">mailto:cq-contest@contesting.com>
On Jul 20, 2010, at 11:46 PM, Radio K0HB wrote:

> But I've another kind of "mini-spike" like you describe.  I've noticed it 
> mostly during Sunday doldrums, but I think it may also occur at other times 
> but is masked by a higher run rate.  This seems to be a "pack" or "convoy" of 
> S&P guys moving up/down the band like you might see cars bunched up on a 
> rural interstate highway.  The "leading" station works you, your signal is 
> heard by "followers", and they each work you in turn as they pass down/up the 
> band.

I think if you model CQ respondents as a very simple stochastic process, where 
the arrival of a respondent is a random function of some probability p 
(basically, a Poisson process), you will find it is not uncommon to have clumps 
or two, three or more simultaneous respondents, even for very small values of 

So, it is not difficult to believe that groups just show up, without any prior 
arrangement or anything other than sheer randomness.

I have noticed, though, that some of these mini-spikes tend to be people from 
similar geographic areas. Having on-air leaders and followers seems like a good 

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901

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