[Skimmertalk] Skimmer Data Load?

Steve London n2icarrl at gmail.com
Mon Aug 3 21:30:11 EDT 2015

On 08/03/2015 06:51 PM, Ron W7FIA wrote:
>> From: Gary K9GS <garyk9gs at wi.rr.com>
>> Date: Mon, 3 Aug 2015 19:41:17 -0500
>> Does anyone know what the data usage is from a skimmer source like VE7CC
>> on a heavy weekend like CQWW CW?  This is something I've always wanted
>> to ballpark but I always forget to look before/after the contest?
> Something to guess off of might be the size of the csv file from RBN
> on a contest day, for instance first day of CW WPX on 30 May is 187
> Meg in size and contains 2949875 lines.
> So multiply by some estimate of connected users getting that data and
> it easily can get to a few hundred Gig of network traffic.  Best to
> have a land line for that.

No, for the skimmer traffic to a single user from a single cluster, 
using the standard telnet message from the cluster, it would be, at 
worst, about 100 bytes per line, so that's 300 MB.

By applying proper filtering to filter duplicate spots, and only getting 
spots from skimmers that are in your proximity, you can reduce it to a 
fraction of that 300 MB.

Steve, N2IC

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