Excellent suggestion Dave...
Just added 1272, Santee California to active stations on
the Region 3 Signal Tools page....
http://frankfortweather.us/BoStaSig/This might help in tracking down 'signal noise', etc....
Right now, if you're generating more than about a thousand, you're running too high, or you've got excessive noise.
Now, note that not all of your signals are in error.... some ARE sferics, they just are very far away, perhaps, and not detected by other stations... particularly you folks on the coasts...
I monitored your station, Dave, in a window next to mine for several hours the other day... amazing how many signals you and I both had that were NOT, apparently, strokes as recognized, but could NOT have been 'local' interference. Folks oughta try that... open 2 windows on the 'signals' page, and compare your signals with those of someone at 50-150 miles of your location, for e.g. ... you may get a surprise especially if you're trying to track 'noise'.
There will be some differences between stations, for display, because of the 'sampling' times of the page server, but after a bit, especially if your controller is nearby and you can see the 'signal' orange light flash.... you can correlate....
If you can't follow me on this, I'm sorry... If you can, you'll learn some things that will make you feel better, and help you optimize your settings....
Mike