[CQ-Contest] Spots and Success in the WRTC - a little data for discussion

[Pete Smith]

One likely explanation, which Steve and a couple of others have posited, 
is that Skimmer doesn't "like" significant change in speed between CQ, 
TEST or QRZ and the callsign - my guess is that it thinks the faster or 
slower characters are coming from someone else, who just happened to get 
on frequency within 50 Hz.  Perhaps unless/until Alex finds a way to 
improve that, it will be an incentive for people not to indulge in this 
ridiculous practice of speed shifting within a CQ, or, indeed, anywhere 
in a contest QSO

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 7/19/2010 9:13 AM, Steve London wrote:
> A question that I have is...what were R32K, R31X, R36O, R34D, R37P, R39A and
> R39R doing differently that caused them to be infrequently picked up by a skimmer ?
>
> On the suggestion of my teammate, N6TV, our CQ was "TEST R39M R39M". All
> characters were sent at the same speed - usually at 36 or 38 WPM. That seems to
> have resulted in the 6th highest skimmer capture rate.
>
> 73,
> Steve, N2IC
>
> Pete Smith wrote:
>    
>> The following table lists the contestants in WRTC by finish order and
>> callsign, and then shows the number of spots recorded in the Reverse
>> Beacon Network database.  Reverse beacons don't cheerlead or select
>> which stations to spot.  You can draw your own conclusions.  Perhaps
>> there is a statistician among us who can derive further enlightenment by
>> analyzing these numbers, together with others released by the organizers.
>>
>> Call 	Place 	 Spots
>> R32F 	1 	182
>> R33A 	2 	109
>> R33M 	3 	316
>> R39D 	4 	172
>> R34P 	5 	156
>> R32K 	6 	0
>> R32R 	7 	106
>> R31X 	8 	21
>> R37M 	9 	189
>> R36C 	10 	166
>> R33L 	11 	132
>> R38F 	12 	232
>> R33G 	13 	163
>> R31U 	14 	62
>> R34O 	15 	122
>> R36Y 	16 	59
>> R34W 	17 	197
>> R39M 	18 	222
>> R32C 	19 	115
>> R37L 	20 	139
>> R37Q 	21 	247
>> R34C 	22 	184
>> R36O 	23 	17
>> R38O 	24 	116
>> R31A 	25 	302
>> R36F 	26 	41
>> R38K 	27 	187
>> R38X 	28 	79
>> R31D 	29 	111
>> R34D 	30 	14
>> R32Z 	31 	252
>> R32O 	32 	111
>> R37A 	33 	184
>> R32W 	34 	142
>> R31N 	35 	140
>> R36Z 	36 	100
>> R38N 	37 	50
>> R36K 	38 	91
>> R38W 	39 	79
>> R37P 	40 	10
>> R39A 	41 	25
>> R37U 	42 	191
>> R34X 	43 	76
>> R39R 	44 	12
>> R34Z 	45 	133
>> R33U 	46 	96
>> R36W 	47 	152
>> R33Q 	48 	85
>>
>>
>> When I first saw this, I questioned how it was possible that a station
>> could finish sixth and yet not be spotted even once, but the scientist
>> on our team tells me it is not only possible, but statistically likely.
>> In any case, that's what the database says.
>>
>>      
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