RE: [Airo-linux-gen80211] Cisco Wireless Bridge in long (46km) link? and longer?

[Derek S. <de...@in...>]

Hi,
 distance achieved is also a height thing.

If both ends are 2 m above ground, and both ends are on a large flat area,
you will get a range of X km (don't know what X is, but,,,,)

Now, if there is a river running through that large flat area, range will
decrease from X km.

If one end is on a hill, range will go up quite a bit.

Now, if both ends are on top of a hill, range will double or triple.


it has something to do with fresnel and dispersion.....



Derek.
==========================================================================

On Tue, 13 Apr 2004, rick wrote:

> we use jusat cisco pci 4800 cards and veritech/seneo cards for our 57km link
> and anything over 30kms
> 
> this isnt a cisco thing its a recive sensitivity thing, maybe you should
> contact your local wireless installer for help
> 
> -----Original Message-----
> From: air...@li...
> [mailto:air...@li...]On Behalf Of
> Bruno Lopes F. Cabral
> Sent: Wednesday, 24 December 2003 11:43 PM
> To: air...@li...
> Subject: [Airo-linux-gen80211] Cisco Wireless Bridge in long (46km)
> link? and longer?
> 
> 
> Hello there
> 
> this is my first post to this list so please be gentle.
> 
> I'm evaluating Cisco Aironet gear to a long link and was
> told that a certain Cisco wireless bridge can get a
> distance value to adjust itself for a long link (>35km).
> 
> does any of you knows if it is true that you can make
> a link as long as 200km(!) using a Cisco 2.4GHz wireless
> bridge? which cisco model would it be?
> 
> I'm planning just 46km but was impressed with this info,
> so the question here, the only list about Cisco wireless
> that I can found of
> 
> (please don't bother the power/altitude/antennaes and
> other RF issues involved. my problem is more about the
> 802.11b timeouts/retransmissions above 35km distance)
> 
> TIA, !3runo
> 
> 
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