K3ZS
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« on: May 13, 2013, 12:18:42 PM » |
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Seems like the X flare has killed the HF bands, just checked to see if the antenna is still up.
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W1AEX
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« Reply #1 on: May 13, 2013, 12:30:03 PM » |
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Yes indeed. The plug has been pulled it would seem. About 30 minutes ago all I could hear was WWV @ 20 MHz with a signal strength around S-3. Currently it's rolling in at S-9 and I can now also hear CHU on 7.850 at S-7. I suppose we'll just have to wait and see how fast things recover.
Rob W1AEX
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One thing I'm certain of is that there is too much certainty in the world.
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WA3VJB
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« Reply #2 on: May 13, 2013, 12:37:42 PM » |
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A good day to key the transmitter and leave for work.
Come back later.
The power might jump-start propagation.
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KC2TAU
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« Reply #3 on: May 13, 2013, 12:39:06 PM » |
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I did the same thing with regards to seeing if my antenna was still there. Not a peep on the bands.
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KB2WIG
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« Reply #4 on: May 13, 2013, 12:57:55 PM » |
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There's a bit of activity around here. SSB 7255 net. Noo one on .290.
klc
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What? Me worry?
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K1JJ
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"Let's go kayaking, Tommy!" - Yaz
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« Reply #5 on: May 13, 2013, 01:07:25 PM » |
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Interesting that last night around 11 PM we had the usual warning. There was raspy 25 dB over S9 "frying eggs" static on 75M that all the guys were hearing.
The blackout seems to follow later on when the plasma particles hit Earth. It's not the speed of light (8.33 minutes) but rather much slower for these particles.
Being near the solar peak, it's business as usual.
T
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Use an "AM Courtesy Filter" to limit transmit audio bandwidth +-4.5 KHz, +-6.0 KHz or +-8.0 KHz when needed. Easily done in DSP.
Wise Words : "I'm as old as I've ever been... and I'm as young as I'll ever be."
There's nothing like an old dog.
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kb3ouk
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« Reply #6 on: May 13, 2013, 01:12:54 PM » |
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Tuned around a little on my little Eton portable shortwave receiver I have and didn't hear anything except for CHU on 7850, so it sounds like 40 meters might still be a little useable as long as you can put out enough power.
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Clarke's Second Law: The only way of discovering the limits of the possible is by venturing a little past them into the impossible
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Pete, WA2CWA
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« Reply #7 on: May 13, 2013, 01:13:27 PM » |
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You guys should learn to adapt if you want activity. Check the VHF bands; activity there and even some band openings on 6 and 2 meters.
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
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WA3VJB
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« Reply #8 on: May 13, 2013, 01:41:25 PM » |
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Frequencies that high hurt my ears. . Check the VHF bands
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kb3rdt
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poop cup
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« Reply #9 on: May 13, 2013, 01:44:24 PM » |
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2 meter cb?
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Pete, WA2CWA
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« Reply #10 on: May 13, 2013, 03:17:11 PM » |
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2 meter cb?
Low end. I never go above 144.3 MHz. |
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
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Pete, WA2CWA
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« Reply #11 on: May 13, 2013, 03:19:57 PM » |
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Frequencies that high hurt my ears. . Check the VHF bands
Sometimes it does hurt the older fellows.  |
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
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KD0HUX
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« Reply #12 on: May 13, 2013, 06:56:41 PM » |
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Steve - K4HX
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« Reply #13 on: May 13, 2013, 08:37:06 PM » |
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It was an R3 Blackout (I'm blackout!!!!)
From NOAA:
2013-05-13 16:16 UTC Another Strong Radio Blackout, May 13
A hot active region, still barely on the visible disk, erupted with an R3 (Strong) Radio Blackout around 1600 UTC (noon EDT) today, May 13. This is the same region that produced an R3 (Strong) event about 12 hours ago. Given its location well off the Sun-Earth line, no Geomagnetic Storm activity is anticipated should a CME be launched. These recent x-ray flares are the strongest so far this year.
R 3: Strong
HF Radio: Wide area blackout of HF radio communication, loss of radio contact for about an hour on sunlit side of Earth.
Navigation: Low-frequency navigation signals degraded for about an hour.
Two big peaks on the X-ray plots.
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