Doug Crompton on Wed, 24 Apr 2002 22:32:42 -0400


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Re: [PLUG] PLUG Wireless/ Co-op?


On Wed, 24 Apr 2002, Noah silva wrote:

> 
> 
> > 
> > Well- if you're interested that makes three. From my understanding,
> > depending on the antenna and amplification, 15 blocks would be cake
> > (although the buildings would be an obstacle).
> 
> If you use the "right" antenna, it would then be very directional, so you
> would need to get quite a few 802.11 bases for each base-station you
> wanted to set up camp.  The "right" amplification probably wouldn't be
> legal ;).  Why do you think I use the ricochet modems?  They have much
> greater range (with an omni antenna, no less) than most current 802.11
> hardware.
> 

It is line of sight and antennas (for fixed broadband wireless) can be
whatever you want to satisfy your coverage area. Omni or directional. Omni
would give you 360 degree coverage out to about 5-7 miles depending on
height. The client would use a high-gain  direction antenna pointed at
the base. A High gain narrow beamwidth antenna could go to 20 miles plus
point to point.

Sprint has a system on the Sears tower in chicago that covers out to 25-30
miles I believe.

Doug  

****************************
*  Doug Crompton	   *
*  Richboro, PA 18954	   *
*  215-431-6307		   *
*		  	   *
* doug@crompton.com        *
* wa3dsp@wa3dsp.ampr.org   *
* http://www.crompton.com  *
****************************



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