[Phoenix-pm] [job] Linux Admin w/ Perl/PHP Programming

[Metz, Bobby W, WWCS]

Sounds about right...I used to use DirecPC back in the day when fair use
policies were being challenged in court, uploads were terrestrial & you
could actually get unlimited nighttime access for a mere $30 and I
remember the delay was more like 450ms, but why guess.  Google calc
searches makes it easy.

Geosynch orbit is 35,786 kilometers = 22,236.3895 miles
speed of light in miles/ms = 186.282397 miles / millisecond
22,236.3895 miles / 186.282397 miles / millisecond = 119.3692 ms
Total one-way delay = 119.3692 ms * 2 = 238.7384 ms
Total two-way delay = 238.7384 * 2 = 477.4769 ms

I used to think the terrestrial upload and older equipment years ago
really took a toll on those round trip ping times but maybe it wasn't as
bad as I thought in comparison to above.  It'd be very interesting to
see someone's ping responses that has one of these services to see how
the estimates stack up.  I wonder if the gateways are in the satelites
now and not @ the ground station like in the 90's.  If so that could
provide really inaccurate ping times if testing to your gateway IP.

Bobby


-----Original Message-----
From: phoenix-pm-bounces+bwmetz=att.com at pm.org
[mailto:phoenix-pm-bounces+bwmetz=att.com at pm.org]On Behalf Of Benjamin
R. Ginter
Sent: Wednesday, August 09, 2006 4:36 PM
To: Brock
Cc: Phoenix.pm
Subject: Re: [Phoenix-pm] [job] Linux Admin w/ Perl/PHP Programming


Brock,

I've been looking at WildBlue who offers broadband speeds using two-way 
offset paraboloid satellite dishes.  Some forum posts have indicated
that 
the latency is still fairly poor, in the 200-250ms range.  I guess the 
satellite is at 22k miles or something for geosynchronous orbit and
light 
can only go so fast.

Near Colville, Qwest does offer DSL and another provider offers point to

point links via microwave with line of sight to their
antennas/repeaters. 
I've heard Hughes has a business-class satellite service that some
doctors 
are using for critical telepresence applications that would seem to 
require lower delays.

Since 200ms is fairly useless for interactive shells, any other
providers 
you or the other readers may be aware of would be of interest to me. 
Otherwise, I might have to start getting creative with passive
waveguides 
or smth.  Hell, maybe I should just launch some instrument laden weather

balloons and start my own ISP!  Who says the glory days are over? :)

Ben

On Wed, 9 Aug 2006, Brock wrote:

> Neat. If you have offgrid-internet feel free to drop us a line and
tell
> us how it's going :)
_______________________________________________
Phoenix-pm mailing list
Phoenix-pm at pm.org
http://mail.pm.org/mailman/listinfo/phoenix-pm