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 wave black out. 2. It increases to chance of a low latitude radio aurora. A radio aurora will cause disruption due to the reflective properties of the plasma curtain. Frequencies up to 1GHz can be reflected off these, or if the curtain is between the receiver and the transmitter the signal will become very distorted. A reflected signal on its own can be coped with, but a reflected signal off the auroral curtain will introduce doppler shift. As the curtain is not solid , but of charged particles and moving the rate of doppler shift is not constant and becomes the sum of all the shifts. AM based transmission are very susceptible to this this includes TV transmissions and AM radio. FM transmissions are less susceptible but are still effected. As the amont of doppler shift is randomised the tonal quality of speech on a AM transmission will sound like a whisper. TV pictures will be effected but not dramatically. As for mobile phones, no effect as these are all short range comms and are all above 800MHz and use either gMSK or WBCDMA. Right time to stop boring the list Richard On Fri, 2003-10-24 at 09:48, Seak, Teng-Fong wrote: > 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 > >the changed particles that make up the solar wind, which may be 'gusting'. > > > But Lyvim wrote "... we now have a massive wave of _electromagnetic_ > energy and > particles headed our way. It's due to hit tommorrow." And even > particles, they are usually relativistic, which means they would take at > most hours but not days to reach us. > > 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. > > > > ______________________________________________________________________ > Want to buy your Pack or Services from MandrakeSoft? > Go to http://www.mandrakestore.com -- Richard Bown <[EMAIL PROTECTED]>
Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
