[MLB-WIRELESS] longest link?

[paul van den bergen]

On Tue, 28 Oct 2003 03:11 pm, vk3jma at net2000.com.au wrote:
> Quoting Craig Mead <craig at australianwireless.org>:
> > Yes, C. I'd like to lock in C thanks Eddie. 103km.
>
> Would you like to ping a friend?

:-)

ROC of the earth tends to cut into the freznel zone so your end points need to 
be WAY up in the air for these sort of links... On flat ground with about 15 
foot ground clearance (antenna height), 5-8km would be about the limit... 
(IIRC)

ofcourse, if it is straight up you can go forever[1][2]... or at least until 
the ethernet timeout limits are approached.

[1] where forever is a mighty long way.
[2] given a sufficiently high gain antenna. say, several times the diameter of 
the solar system....

-- 
Dr Paul van den Bergen
Centre for Advanced Internet Architectures
caia.swin.edu.au
pvandenbergen at swin.edu.au
IM:bulwynkl2002
"And some run up hill and down dale, knapping the chucky stones 
to pieces wi' hammers, like so many road makers run daft. 
They say it is to see how the world was made."
Sir Walter Scott, St. Ronan's Well 1824 


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