Might we want to let him know about VC3J?
> Gee, does this mean that folks will actually have to tune the radio,
> listen to the station, and copy the "ingenious" prefixes correctly
> rather than just clicking on a spot...:-)
> 73 - John, W4AU
>> On 4/18/2018 8:46 AM, N4ZR wrote:
>> This may be old news to many of us, but VE3NEA's CW Skimmer Server
>> determines how "skeptical" to be about a callsign, based on a file of
>> all expected callsign patterns. This assessment in turn affects how
>> many repetitions of a callsign it must "hear" before issuing a spot.
>> From time to time, this causes problems for contesters who have gone
>> out of their way to get a truly unique callsign for use in contests
>> like CQWPX.? For example, normal Belize callsigns are V31@@ (where @
>> is an alphabetic wild card), but I have recently been told about the
>> issuance of a V3@ callsign for contest use.
>> Revising the callsign pattern file in a truly systematic way involves
>> getting data from QRZ.COMon the number of "hits" for each callsign and
>> massaging the data with exotic techniques (exotic to me, anyway) to
>> turn callsigns into patterns and aggregate the numbers of hits to
>> determine how common the pattern is.? It's a lot of work.
>> With a little time remaining before CQWPXCW, I'm offering an interim
>> fix.? If you have received what you believe to be a unique prefix and
>> have not used it before March, 2017 (the last systematic overhaul of
>> the pattern file) e-mail me by May 1 and I will incorporate the new
>> pattern in the RBN's pattern file distribution, which will be made
>> available to all RBN nodes by May 10.? I can't promise you that all
>> node-ops will download the new file before the contest, but the server
>> will at least "nag" them to do so.
>> 73, Pete N4ZR
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