Bret, send me your data in a form I can look at, and we can have a
useful discussion. I can imagine several scenarios for what you
describe - harmonics, dueling CQs, keyclicks, and so on.
I'd love to see your data. Your assertion about 1-2 percent errors is
totally out of the ball park. The RBN made 3.7 million spots during ARRL
CW - are you really saying there were 37,000-74,000 erroneous spots?
Show me!
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.
On 2/25/2013 6:33 PM, VR2BrettGraham wrote:
Here is some more data. On 2012-09-21, there were 151 RBN spots of
the same call but on another frequency >3 kc away on the same band at
exactly the same time (to the second) as another skimmer spot. For
this query, I can avoid "dupes", so opening that up to spots of the
same call >3 kc apart on the same band within about 9 seconds of each
other finds 369.
That is just one mechanism. Spots of same call on different band on
the very same second look to have been 140. That's already 0.3% of
RBN spots that day & that will exclude a LOT of wrong-band spots. Add
busted call spots & who-knows-how-many busted call wrong-band or
wrong-freq spots & then scale all this up by some factor as activity
is much higher on weekends (I'm working with weekday data here, as it
makes it easier to find wrong-band spots as no multi-multis on then) -
I believe RBN could be blowing 1-2% of what it spots, perhaps more.
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