[aprssig] Hamvention

[John Kraus]

At 06:09 AM 5/21/2005, you wrote:
>Robbie - WA9INF schreef:
>>What an impressive showing of APRS this morning. At 7:00 AM, there was a 
>>station count of over 100 in the immediate area of Hara Arena.
>
>Try this:
>
><http://mm.aprs.net/map.cgi?map=APRSworld&lat=39.79967&lon=-84.18833&call=*&range=1>
>
>Now what's Bob's ALOHA circle on that one...
>
>Kind regards,
>
>Henk.

I'm no math wiz. Can you define a negative circle? 
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