Thanks Stefan - Yes interesting Flare - I changed the Alaska gains and saw that DHO38 popped out of the noise for 30 mins after the flare hit too - looking at the paths you can "mostly" see the ones in daylight and thus "mostly" affected, but NWC was a surprise as its off the side of the beam. Need to review the captures more, but Eu paths were and have been attenuated by a few dBs over the period.
At that same time the flare hit Wd2xsh/7 on 495.034 appeared over the ESE 5000Kms path . Could be a coincidence as the path has been opening up around that time - signal was clean to start with - then after about 1 hour doppler/scintillation became large with up to 1.5Hz deviation - mostly LF.... signal is just fading now as Louisiana sees dawn. Im still scratching my head but looks like the E/ESE paths from Alaska produce attenuated but there results thru mild proton events too - save the spreading etc.
Laurence KL7UK
remotely operated from somewhere where it doesnt rain a lot.
Date: Tue, 9 Aug 2011 12:31:38 +0200
From:
[email protected]To:
[email protected]Subject: Re: LF: X7_SOLAR_FLARE
Hello Lubos,
Aaah tnx info! I've been confused what there was such a sudden change
in the view on my wideband window. Haven't got the idea to take a look
on other grabbers...
Very clearly visible, that change, on your grabber! On mine too. But
litte changes at TF3HZ. But a strong enhancement of the signals at
KL7UK... Interesting.
73, Stefan/DK7FC
Am 09.08.2011 12:08, schrieb Lubos OK2BVG:
Hello OM�s!
There was big solar flare today at 08.05UT. I had a look on my
Apollo grabber and I noticed, that VLF band was "switched off" from
08:05 to 08:20 UT.
Lubos, OK2BVG
