Re: Re: Radio networking...

["Musashi" <simonr@xxxxxxx>]

This maybe of interest to you, these guys pushed 802.11b over 5 miles and
are now trying for 21 !!

http://www.oreillynet.com/pub/a/wireless/2001/05/03/longshot.html
Simon


----- Original Message -----


From: Brian G. Reynolds
To: ukha_d@xxxxxxx
Sent: Tuesday, May 06, 2003 10:58 PM
Subject: RE: [ukha_d] Re: Radio networking...


Sounds interesting...if interesting is the correct word to use...

The School in question is a public school, is this any different?

I will be passing this onto the boss tomorrow.....

Thanks,

B.

-----Original Message-----
From: james_dunn67 [mailto:james.dunn@xxxxxxx]
Sent: 06 May 2003 22:33
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: Radio networking...


Brian,

Since it looks like you're doing this for a public body, you should
be aware that you need to keep within 100mW (20dBm) EIRP (effective
isotropic radiant power).

To reach 2km with a good signal level, you are very likely going to
break the UK maximum permited RF power levels unless you buy some
very fancy high gain aerials.

See:

http://www.cisco.com/warp/public/102/wlan/faq-hardware-us-calc.xls

For a good design reference.  (Don't forget to set the regulatory
domain to ETSI)

Other manufacturers may have slightly more sensitive radio kit than
Cisco to improve the range but I doubt if they'll be significantly
different.

Sorry to be a spoil sport.

Regards,

James

--- In ukha_d@xxxxxxx, "Brian G. Reynolds"
<brian.g.reynolds@n...> wrote:
> I have been asked to sort a wireless connection to a School just
under 2km away.
>
> I know some people a while back suggested various kit and supplier,
could someone enlighten me please?
>
> Not sure if a "Pringles" can will look too
professional......
>
> Thanks,
>
> B.



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