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Re: [CQ-Contest] Reverse Beacon Network Question

To: k1ttt@arrl.net
Subject: Re: [CQ-Contest] Reverse Beacon Network Question
From: Pete Smith <n4zr@contesting.com>
Reply-to: n4zr@contesting.com
Date: Tue, 15 Feb 2011 06:55:41 -0500
List-post: <cq-contest@contesting.com">mailto:cq-contest@contesting.com>
Indeed.  But why wouldn't you?

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at 
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000



On 2/14/2011 1:37 PM, David Robbins wrote:
> That is of course assuming you want the skimmers to spot you.
>
>
> Feb 14, 2011 01:28:31 PM, n4zr@contesting.com wrote:
>
> Thanks to an off-reflector message from KU5B (which I have somehow
> misplaced), I can confirm what I thought had happened. He did not use
> the key words "TEST" or "CQ" in his CQ message, so CW Skimmer did not
> recognize him to be calling CQ.
>
> There are some other key words that would have worked the same way, but
> Alex has asked me not to talk about CW Skimmer details. However, I
> don't believe "NA" is on the list, and it should be.
>
> As it is currently configured, the RBN Aggregator software, which each
> RBN station runs to send information to the server, does not forward
> non-CQ spots to the "mother ship". This is because to do so would badly
> overload the server. That precludes our doing any post-processing, to
> identify runners that Skimmer has missed.
>
> In coming months, we may be able to change this, but for ARRL DX, I
> suggest putting TEST in your CQ messages periodically to make sure
> you're recognized.
>
> 73, Pete N4ZR
>
> The World Contest Station Database, updated daily at www.conteststations.com
> The Reverse Beacon Network at http://reversebeacon.net, blog at 
> reversebeacon.blogspot.com,
> spots at telnet.reversebeacon.net, port 7000
>
>
>
> On 2/13/2011 7:55 PM, Dave/Sally Cockrum wrote:
>> With the news that the Russian DX Contest will want additional
>> information from QRP and LP entrants so that a comparison between
>> signals can be made using the Reverse Beacon Network, I decided to
>> compare the results for the recent Sprint CW contest. I compared the
>> top five LP stations in the 3830 results (in order: KU5B, K7BG, N9CK,
>> N5DO, and N7CW) for February 6 using the Signal Comparison Tool . I
>> selected the Reverse Beacon from K3LR because it had the most spots on
>> that day -- 11,011. Nothing dramatic jumped out at me from looking at
>> the graphs comparing the signals, except for one thing: The number of
>> times each station was spotted by the Reverse Beacon. Those were
>> surprising: KU5B was spotted 0 times, K7BG 58 times, N9CK 0 times, N5DO
>> 72 times, and N7CW 63 times.
>>
>> The leading station and number 3 were never spotted at all!
>>
>> I thought maybe it was a propagation issue, so I picked a leading
>> Reverse Beacon from the west coast, WA7LNW, with 6,038 total spots on
>> that day. The same pattern occurred: KU5B 0 spots, K7BG 46 spots, N9CK
>> 0 spots, N5DO 37 spots, and N7CW 12 spots.
>>
>>
>> Is this some artifact of the Sprint contest? Is there something in the
>> way KU5B and N9CK called CQ that led to them not being spotted? And is
>> there a secret to being spotted more often? How will results like this
>> effect the ability of the RBN to be an investigative tool?
>>
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>>
>>
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