The SR9 cards might be interesting for this app... chris
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jack Unger Sent: Monday, April 24, 2006 2:39 PM To: WISPA General List Subject: Re: [WISPA] Pioneering Wi-Fi City Sees Startup Woes OK Matt, being a creative person, you can then suggest the use of DSL for the backhaul... jack Matt Liotta wrote: > How do you raise the antennas above the trees without building really > tall poles? Trees around here are 60-70ft. > > City-owned fiber only exists in places with enough density that there > aren't any trees to begin with. Residential areas generally have lots of > trees and no reason for fiber runs. > > 900Mhz won't get you much throughput; certainly not enough to offer an > alternative to DSL. > > -Matt > > Jack Unger wrote: > >> Then the 5 GHz backhaul network must have antennas that are raised >> above the trees. Another option is to backhaul with city-owned fiber. >> Backhauling on 900 MHz is a possible third option. All it takes is rf >> knowledge, creativity, and cooperation. >> jack >> >> Matt Liotta wrote: >> >>> Jack Unger wrote: >>> >>>> A multi-band mesh node does the backhaul on 5 GHz (sometimes with >>>> more than one 5 GHz radio). This reduces (but certainly doesn't >>>> eliminate) the 2.4 GHz self-interference and >>>> other-network-interference level. >>>> >>> You can't use 5 Ghz to go through trees here in Atlanta, so that >>> won't help you. Multi-band mesh nodes simple don't work here. >>> >>> -Matt >>> >> > -- Jack Unger ([EMAIL PROTECTED]) - President, Ask-Wi.Com, Inc. Serving the License-Free Wireless Industry Since 1993 Author of the WISP Handbook - "Deploying License-Free Wireless WANs" True Vendor-Neutral WISP Consulting-Training-Troubleshooting Our next WISP Workshops are April 12-13 and April 26-27 Phone (VoIP Over Broadband Wireless) 818-227-4220 www.ask-wi.com -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.4.1/312 - Release Date: 4/14/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
