Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!decwrl!sgi!rpw3@rigden.wpd.sgi.com From: rpw3@rigden.wpd.sgi.com (Rob Warnock) Newsgroups: comp.dcom.lans Subject: Re: Wireless_Connectivity_Problem_&_A_Plea_For_Support Message-ID: <70728@sgi.sgi.com> Date: 30 Sep 90 08:27:30 GMT References: <141@organpipe.UUCP> Sender: guest@sgi.sgi.com Reply-To: rpw3@sgi.com (Rob Warnock) Organization: Silicon Graphics, Inc., Mountain View, CA Lines: 67 In article <141@organpipe.UUCP> royce@scor_az.resp-sci.arizona.edu (Royce Robbins) writes: +--------------- | I have a connectivity problem... One of products I found was a wireless | LAN made by a group in Canada... Telesystems SLW Inc... | Two products are available (but won't be shipping until "4th quarter"): | ARLAN 610 is a router that "ties into an Ethernet backbone LAN" | ARLAN 650 is a 8-bit PC/AT... card that provides a fully self-contained... +--------------- Back in April of this year, Dave Farber wrote in this forum: +--------------- | We, at UPenn, are in the final stages of putting our local magnet high school | of engineering and science -- the George Washington Carver High School in | Philadelphia onto the internet via a spread spectrum radio link operating | license free at 900 mh. +--------------- Inquiring, I got back mail from Al Broscius , who said: +--------------- | The current Spread Spectrum Packet Radio system being deployed is manufactured | by Telesystems SLW of Toronto, CA and complies with FCC 15.126 rules (now | moved to 15.247). The card, named the ARLAN 450, is a PC/XT adapter which | has a 902-928 MHz 230 kbps transceiver and a Z80 for on-board processing. | The outside world is connected via a "TNC"-style RF jack (similar to a | BNC but threaded). | | The antennas we're currently using ar 18.6 dBi 33-elt loop yagis from | Down East Microwave in Maine. Software is KA9Q NOS with a custom | packet driver built from the Clarkson kit plus the supplied Novell | driver and some UPenn-originated glue code. +--------------- And in later mail, Al said: +--------------- | The radio cards go for $1500 each in unit quantity. They have a 230 kbps | channel rate. | | The loop yagi beams cost $109 each and should give the system a range | in excess of our target 3 miles. I'd be a little hesitant about claiming | 20 miles (very hesitant, actually). +--------------- 1. I'd be very interested in hearing an update from the UPenn folk on how things are going, and whether the deployment of this system has been easy, hard, aborted, or whatever. 2. It looks like the ARLAN 600 series products are shooting for the more "productized" or "plug-n-play" market. The ARLAN 450 UPenn used might be more for the technically more adventuresome ["...UPenn-originated glue code..."]. But it sounds like it was available earlier. 3. Maybe Telesystems SLW Inc. just hasn't decided what market they want to be in. (?) -Rob ----- Rob Warnock, MS-9U/510 rpw3@sgi.com rpw3@pei.com Silicon Graphics, Inc. (415)335-1673 Protocol Engines, Inc. 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311