Satellite based internet providers may also have performance degredations in a high-utilization period -- while they're not cellular, they do utilize spot beams, which segments their services. I'll leave it to others more familiar with this technology to elaborate; I don't know enough about their pre-emption abilities to say how impactful this would be. On Thu, Dec 22, 2016 at 10:44 PM, Nigel Vander Houwen <nigel@nigelvh.com> wrote:
John,
I think any option you listed is susceptible. HamWAN is designed to be as robust as possible with multiple paths to most everything. But it can conceivably fail for parts or all of the network. It’s another option. There’s a finite chance that service X will fail in the earthquake, the more services you have available to you, the more chances one will still work.
Your ground based Hughes dish is just as vulnerable to earthquake shaking as your HamWAN client dish would be, and I have to believe given the history in earthquakes, that the cell networks will be entirely overloaded and useless, assuming you get a signal at all.
Also note that HamWAN isn’t supposed to be an “internet replacement”, it does have connectivity to the internet, and if that still works in the case of the big one, great! Consider HamWAN closer to an island, like yourself. There’s all sorts of connectivity within the island. (EOC/DEM, Hospitals, etc.), and it has links to the internet for greater access.
Nigel
On Dec 22, 2016, at 19:49, John V. Cornelison <john@VashonSoftware.com> wrote:
A couple of tech savvy folks on Vashon are recommending against HamWan for emergency Internet access if Vashon’s sole fiber optic connection to the mainland gets severed. Apparently the problem is that the nodes wouldn’t survive an earthquake ‘reorienting’ the antennas. Can anyone confirm the validity of this?
Given that HamWan seems to have been created about 2005-2007, are there any more modern alternatives for robust internet to Vashon Island?
We’re currently leaning toward (the much pricier) Hughes or other satellite dish connection.
I know of the incoming/potential www.onenet.wa.gov for public service agencies – which should be available to us. We had considered a microwave hookup to the South King County data center near Tukwila or to a commercial provider such as www.accelnet.net/www.cortland.com. Some cell towers from the mainland reach parts of Vashon too, enabling a hot spot approach.
Any other ideas?
Thanks & happy holidays,
John Cornelison KE7KDQ VashonBePrepared.org <http://www.vashonbeprepared.org/> VashonEOC.org <http://www.vashoneoc.org/> _______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.net/mailman/listinfo/psdr
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