[MLB-WIRELESS] Re: Microwave links (fwd)

[sanbar]

Is this claim right?
It's from another mailing list ... bit at the bottom too about a 30km 
link.
- Barry 

-- 
barry park
http://wireless.bur.st/ ||| community wireless project
http://wireless.org.au/ ||| melbourne wireless node bca
-=all your http_get are belong to us=-

---------- Forwarded message ----------
Date: Mon, 02 Sep 2002 20:51:34 +0800
Subject: Re: Microwave links

Microwave links would only interfeer with eachother if they are running
on the same freqency(channel). with 802.11b, you have 11 channels to chose
from. Only 3 of these are truly individual due to the overlap. Ch 1, 6 and 11.
However, on ch 11, if you output 4W EIRP(legal limit) you are actually
putting out more power than is legal due to the overlap into ch 12+ which AFAIK
isn't legal to transmit on.

Speaking of microwave links, we have just established a link that stretches just
under 30km here in WA. It goes from the 'HillsHub' to a site i manage (DVNet) in
Doubleview. presently we are having a few small problems due to a firmware on the
card at HillsHub, but other than that, we have a very usable link (at 5.5Mbit)
This is using an 18dBi Galaxy dish and a 35mW Cabletron card at HH, and a Cisco 352 series
card (100mW) and a 24dBi Galaxy dish at DVNet(with a long cable run, so its just under 4W EIRP).



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