Re: [expert] Geomagnetic storm alert

2003-10-25 Thread James Sparenberg
On Thu, 2003-10-23 at 23:36, John Wilson wrote: On October 23, 2003 07:17 pm, Lyvim Xaphir wrote: I just heard on Fox news that a pseudo-solar flare has erupted on the sun, and we now have a massive wave of electromagnetic energy and particles headed our way. It's due to hit tommorrow. No

Re: [expert] Geomagnetic storm alert

2003-10-25 Thread James Sparenberg
On Fri, 2003-10-24 at 01:11, Seak, Teng-Fong wrote: By tomorrow means 24 October? Strange that EM wave from the Sun would take days to reach the Earth instead of 8 minutes :-D Not really the flares visible portion is traveling at the speed of light yes, but the flare itself is

Re: [expert] Geomagnetic storm alert

2003-10-25 Thread James Sparenberg
On Fri, 2003-10-24 at 07:30, Lyvim Xaphir wrote: On Fri, 2003-10-24 at 02:36, John Wilson wrote: On October 23, 2003 07:17 pm, Lyvim Xaphir wrote: I just heard on Fox news that a pseudo-solar flare has erupted on the sun, and we now have a massive wave of electromagnetic energy and

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread KevinO
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John Wilson wrote: Dunno what Fox was on about but you can no more get a voltage spike from solar flares than you can from making tea. :-) The 6 million customers of the Hydro-Quebec power system in Canada that lost their power in March of 1989

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread Seak, Teng-Fong
By tomorrow means 24 October? Strange that EM wave from the Sun would take days to reach the Earth instead of 8 minutes :-D John Wilson wrote: On October 23, 2003 07:17 pm, Lyvim Xaphir wrote: I just heard on Fox news that a pseudo-solar flare has erupted on the sun, and we now have a

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread KevinO
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Seak, Teng-Fong wrote: By tomorrow means 24 October? Strange that EM wave from the Sun would take days to reach the Earth instead of 8 minutes :-D It is not the electromagnetic radiation that causes the major problems. It is the changed

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread Seak, Teng-Fong
KevinO wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Seak, Teng-Fong wrote: By tomorrow means 24 October? Strange that EM wave from the Sun would take days to reach the Earth instead of 8 minutes :-D It is not the electromagnetic radiation that causes the major problems. It is

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread Richard Bown
these are the logged wwv values for the last 24 hrs. comms below 30 MHz are short range at the moment. The A index indicates a large aurora is imminent. DateHour SFI A K Forecast 24-Oct-2003 06 183 10 2 R=122 Str,R3=Str,G3,R1

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread KevinO
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Seak, Teng-Fong wrote: On the other hand, it's rather EM wave which is more harmful to satellites rather than particulars because charged particles are mostly deviated by terrestrial magnetic field whereas em wave is unaffected. A great

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread HaywireMac
On Fri, 24 Oct 2003 10:11:03 +0200 Seak, Teng-Fong [EMAIL PROTECTED] uttered: By tomorrow means 24 October? Strange that EM wave from the Sun would take days to reach the Earth instead of 8 minutes :-D Well, the Sun is being considerate this time and slowing down c for us. --

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread KevinO
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 HaywireMac wrote: Well, the Sun is being considerate this time and slowing down c for us. Yeh, I guess it is smiling at us after spitting in our general direction ;-) It is all relative anyway :-p - -- KevinO If Microsoft built cars, If you

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread Richard Bown
Time to stick my oar in ! A few facts as satellite coms are above 1 GHz, there will be no effect on them I'll explain why the increase in magnetic flux caused by a solar flare has several effect 1. it changes the properties of the ionosphere, which short wave comms relies on , hence the short

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread HaywireMac
On Fri, 24 Oct 2003 02:14:59 -0700 KevinO [EMAIL PROTECTED] uttered: It is all relative anyway :-p I was gonna use that one, but I thought I'd leave it for someone else ;-) Anyhow, it does turn out we have a case of mismatched terminology here, the *charged particles* in the solar wind can

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread KevinO
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Richard Bown wrote: Time to stick my oar in ! A few facts as satellite coms are above 1 GHz, there will be no effect on them In a large solar event that was pointing directly 'at' us, it could destroy satellites and kill astronauts but these are

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread KevinO
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 HaywireMac wrote: On Fri, 24 Oct 2003 02:14:59 -0700 KevinO [EMAIL PROTECTED] uttered: It is all relative anyway :-p I was gonna use that one, but I thought I'd leave it for someone else ;-) Thanks! - -- KevinO If Microsoft built cars, If

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread Richard Bown
I was trying to keep it simple, so it was understandable by those without any RF experience. As for AMSAT most uplinks are now above 430 MHz, and those with downlinks below 430MHz are old/obsolete ie AO10. If you want to take it further , either off list , or on air or if you must echolink Richard

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread John Wilson
On October 24, 2003 12:43 am, KevinO wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John Wilson wrote: Dunno what Fox was on about but you can no more get a voltage spike from solar flares than you can from making tea. :-) The 6 million customers of the Hydro-Quebec power system in

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread Lyvim Xaphir
On Fri, 2003-10-24 at 02:36, John Wilson wrote: On October 23, 2003 07:17 pm, Lyvim Xaphir wrote: I just heard on Fox news that a pseudo-solar flare has erupted on the sun, and we now have a massive wave of electromagnetic energy and particles headed our way. It's due to hit tommorrow. No

Re: [expert] Geomagnetic storm alert

2003-10-24 Thread Daniel Anderson
Could the em wave have a lot of energy at 2.4ghz? My wireless connection was almost unusable most of wednesday and thursday, but is back to normal now. Dan On Fri, 2003-10-24 at 10:30, Lyvim Xaphir wrote: On Fri, 2003-10-24 at 02:36, John Wilson wrote: On October 23, 2003 07:17 pm, Lyvim Xaphir

[expert] Geomagnetic storm alert

2003-10-23 Thread Lyvim Xaphir
I just heard on Fox news that a pseudo-solar flare has erupted on the sun, and we now have a massive wave of electromagnetic energy and particles headed our way. It's due to hit tommorrow. No kidding. Supposedly the max rating for such a storm is G5, this storm is supposed to be G3 or so.