[Skimmertalk] NA5NN and CW Skimmer

Pete Smith N4ZR n4zr at contesting.com
Mon Nov 9 12:37:58 EST 2015


Plausible, Bob - waiting to hear definitively from Alex, but that'll do

73, Pete N4ZR
Download the new N1MM Logger+ at
<http://N1MM.hamdocs.com>. Check
out the Reverse Beacon Network at
<http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 11/9/2015 11:46 AM, Bob Wilson, N6TV wrote:
> I know that CW Skimmer listens for the pattern 5NN thinking it is part of a
> typical contest exchange.  So perhaps this callsign is fooling Skimmer into
> thinking that the call being sent was actually giving an exchange on that
> frequency?
>
> K6LL 123 A NA*5NN* 10 MS
>
> ?
>
> 73,
> Bob, N6TV
>
> On Mon, Nov 9, 2015 at 7:16 AM, Dave Hachadorian <k6ll.dave at gmail.com>
> wrote:
>
>> I noticed during the CW Sweepstakes Contest that a number of different
>> call signs were being posted by CW Skimmers on NA5NN's CQ frequency.  These
>> were definitely Skimmer posts, and not some kind of inadvertent self-post
>> by NA5NN.  I had spotter state filter set to UT, AZ, NV, and CA, and
>> various skimmers in these states were making the posts.  I listened to
>> NA5NN's macros for a while, and didn't see anything unusual.
>>
>> Is there some way to run a retro analysis to see what was going on there,
>> or any other thoughts?  Is there something unusual in the dot/dash pattern
>> of NA5NN that might confuse a skimmer?
>>
>> By the way, the Skimmers generally worked beautifully in SS. Thanks to all
>> for all the hard work.
>>
>> Dave Hachadorian, K6LL
>> Yuma, AZ
>>
>> _______________________________________________
>> Skimmertalk mailing list
>> Skimmertalk at contesting.com
>> http://dayton.contesting.com/mailman/listinfo/skimmertalk
>>
> _______________________________________________
> Skimmertalk mailing list
> Skimmertalk at contesting.com
> http://dayton.contesting.com/mailman/listinfo/skimmertalk
>



More information about the Skimmertalk mailing list