[Lowfer] Doppler spread to AK

[JD]

I wonder if there could be any connection to the proton arc aurora the night 
before.

Speaking of Doppler effects, Garry, you may recall the 1 to 2 Hz bifurcation 
of QRSS traces I've encountered at times on 22 meters (once in a while, 
trifurcation).  Usually it's on EH, sometimes briefly on USC, NC, etc, but 
it had only shown up one time on the shorter path from SIW thus far.

Well, the past several weeks that I've been monitoring your slowed-down SIW 
slash mode signal, I've discovered that the bifurcation phenomenon is not 
exactly rare over the shorter path...it's merely a narrower shift, and it 
seems to endure over similar or slightly longer time frames.  I'm preparing 
a significantly longer post for the LW Message Board comparing Monday 
afternoon's results at QRSS3, 20, and 30, but I thought you might like to 
see a preview:

http://lwca.org/mbarchiv/pix/2015/17augac0019.gif

I've seen the trace fatten during the ramps before, and even widen and 
narrow forming something that looks like hysteresis loops, but this is the 
first time I've seen the second trace dip in frequency then rise above the 
original carrier again and settle back so gracefully.

BTW, the dual sinusoid is NC's upper and lower frequencies doing their late 
afternoon thermal dance.  The more or less straight lines are CODAR 
sidebands.  (Times are CDT. The frequency scale is not calibrated on this 
run, but it appeared you were centered just a smidgen below 13555.438 kHz.)

John