From fork-admin@xent.com Wed Oct 2 21:16:48 2002 Return-Path: Delivered-To: yyyy@localhost.example.com Received: from localhost (jalapeno [127.0.0.1]) by jmason.org (Postfix) with ESMTP id 84A4316F18 for ; Wed, 2 Oct 2002 21:16:23 +0100 (IST) Received: from jalapeno [127.0.0.1] by localhost with IMAP (fetchmail-5.9.0) for jm@localhost (single-drop); Wed, 02 Oct 2002 21:16:23 +0100 (IST) Received: from xent.com ([64.161.22.236]) by dogma.slashnull.org (8.11.6/8.11.6) with ESMTP id g92IfEK22005 for ; Wed, 2 Oct 2002 19:41:14 +0100 Received: from lair.xent.com (localhost [127.0.0.1]) by xent.com (Postfix) with ESMTP id 68B44294173; Wed, 2 Oct 2002 11:41:03 -0700 (PDT) Delivered-To: fork@example.com Received: from dream.darwin.nasa.gov (betlik.darwin.nasa.gov [198.123.160.11]) by xent.com (Postfix) with ESMTP id A119629409C for ; Wed, 2 Oct 2002 11:40:31 -0700 (PDT) Received: from cse.ucsc.edu (paperweight.darwin.nasa.gov [198.123.160.27]) by dream.darwin.nasa.gov ( -- Info omitted by ASANI Solutions, LLC.) with ESMTP id g92Iech26818 for ; Wed, 2 Oct 2002 11:40:40 -0700 (PDT) Message-Id: <3D9B3DA6.2090204@cse.ucsc.edu> From: Elias Sinderson Reply-To: fork@example.com User-Agent: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:0.9.4.1) Gecko/20020518 Netscape6/6.2.3 X-Accept-Language: en-us MIME-Version: 1.0 To: fork@example.com Subject: Re: Wifi query References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: fork-admin@xent.com Errors-To: fork-admin@xent.com X-Beenthere: fork@example.com X-Mailman-Version: 2.0.11 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Friends of Rohit Khare List-Unsubscribe: , List-Archive: Date: Wed, 02 Oct 2002 11:40:38 -0700 X-Spam-Status: No, hits=-0.7 required=5.0 tests=AWL,FORGED_RCVD_TRAIL,KNOWN_MAILING_LIST,REFERENCES, USER_AGENT,X_ACCEPT_LANG version=2.50-cvs X-Spam-Level: 802.11b - 11Mbps per channel over three channels in the 2.4GHz range (also shared with microwaves and cordless phones) at rages up to ~300 ft. 802.11a runs on 12 channels in the 5GHz range and up to around five times more bandwidth (~54Mbps or so) but has less range (60-100 ft). 8021.11a also adds Forward Error Correction into the scheme to allow for more reliable data transmission. Which to use really depends on what you're doing with it. Streaming video almost necessitates 802.11a, while streaming just audio can be comfortably done with 802.11b provided that there isn't much interference or too many clients. Prices? Don't know... Haven't done the research. For covering a large area 802.11a will be more expensive due to the need for more APs. If you want to reach the local coffee shop, however, you will need a directional antenna either way. Check out http://www.80211-planet.com, they've got some good articles on 802.11... Also, some of the best info on 802.11 security I've seen can be found at http://www.drizzle.com/~aboba/IEEE/. Give me bandwidth or give me death, Elias Tom wrote: >... I have one very pressing question.... Wifi ranges.. ... > >Do I got for 802.11b stuff or do I gold out for 802.11a ? Is the price >point break goign to warrant the differnce? >