Profile
docwebster
Page Summary
otherbill.livejournal.com - (no subject)
dethinwntr.livejournal.com - (no subject)
midnightmadness.livejournal.com - (no subject)
jarlsberg71.livejournal.com - (no subject)
yobadself.livejournal.com - (no subject)
greyman.livejournal.com - (no subject)
javagoth.livejournal.com - (no subject)
bunyip.livejournal.com - (no subject)
femakita.livejournal.com - (no subject)
Style Credit
- Style: by
Expand Cut Tags
No cut tags
no subject
Date: 2004-03-03 02:50 am (UTC)no subject
Date: 2004-03-03 03:48 am (UTC)no subject
Date: 2004-03-03 03:23 am (UTC)OMG!! that's sick and wrong
no subject
no subject
Date: 2004-03-03 04:42 am (UTC)no subject
Date: 2004-03-03 04:30 am (UTC)fun with uptime
Date: 2004-03-03 08:01 am (UTC)At the time I was running off a bank of Trojan golf cart batteries which would hold the PC, monitor, stereo and answering machine up for about a 24 hour DAY in the event of power failure.
no subject
Date: 2004-03-03 04:47 am (UTC)no subject
Date: 2004-03-03 05:33 am (UTC)http://www.arrl.org/tis/info/HTML/plc/
FEMA is also quite concerned:
http://www.arrl.org/news/stories/2003/12/08/1/?nc=1
Basically, not only does Broadband over Power Lines cause significant interference to services up to 80 MHz (all AM, shortwave, and lower VHF such as low television channels, including amateur radio, CB, and many legacy mobile communications systems in older services) but the normal operations *of* those HF and VHF services can cause interference back into the BPL. A 100W HF transmitter operated a few hundred feet from a BPL line can cause noise leading to many dropped packets.
The only argument they ever had which was interesting was that it would be cheaper to deploy broadband to rural communities using BPL than cable or DSL, and this is belied by the fact that BPL requires repeater stations every so often. BPL will be deployed to the cities first in direct competition to existing adequate services.
During wide-spread emergencies such as Hurricane Isabel, there was widespread telephone outages. HF and VHF communications was used to a great extent to coordinate resources such as shelters, kitchens, and medical assistance. Although the BPL might very well be down in the directly affected area, noise from BPL would prevent reception of HF and VHF communcations in areas which retained power... the places where help is coming *from*. In addition, practice training such as drills would not be possible during times when BPL was still functional.
John Trindle KG4RZH, certified Amateur Radio Emergency Service communicator.
no subject
Date: 2004-03-03 08:06 am (UTC)"I can't deal with something like this before coffee..."
no subject
Date: 2004-03-04 12:00 am (UTC)no subject
Date: 2004-03-04 05:17 am (UTC)no subject
Date: 2004-03-03 08:40 am (UTC)no subject
Date: 2004-03-08 02:59 pm (UTC)