[BC] Sat Internet Service

Chris Gebhardt chris at virtbiz.com
Fri Oct 16 09:41:55 CDT 2009


towers at mre.com wrote:
> Something is not right in that system.  If 2.48Ghz has such terrible path
> loss characteristics as a result of simple fog, it wouldn't be as widely
> used on paths as much a 10 times that length with 99.9999% realibility.
> 
> Even 23 Ghz systems don't experience such terrible fade issues except in
> heavy snow. And ENG systems which operate adjacent to or IN that spectrum
> (ENG channel 8 is at the low end of the Part 15 802.11 band) has zero
> issues.  While ENG is 20dB or more potent iERP as Part 15, they run paths
> up to 30 miles in raging snow storms where path loss is FAR worse than
> simple fog.

But if we're comparing $300 wifi kits to the kind of gear you're 
describing... well isn't that kind of like comparing an outboard boat 
motor to a tugboat?   Sure, they both power vessels on the water, but 
you'd no more tow a big barge with your Evinrude than you would waterski 
behind your tug!

With most unlicensed gear that I've run across, you're going to run into 
some fairly severe limitations with distance and environmental 
conditions.   It takes a pretty decent investment in equipment to buy 
your way around those issues.  I just keep going back to if T1 is 
available for Kevin's case, and the project is anything other than 
tinkering or hobby, that is the way I would go.

Oh, and I was really looking for an excuse to say Evinrude today.  It's 
fun to say.

PS: I know you just silently said Evinrude in your head.

Chris Gebhardt
VIRTBIZ Internet Services
chris at virtbiz.com | (972) 485-4125



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