From owner-freebsd-isp Thu Oct 30 14:11:18 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id OAA14684 for isp-outgoing; Thu, 30 Oct 1997 14:11:18 -0800 (PST) (envelope-from owner-freebsd-isp) Received: from guardian.fortress.org (fortress.org [199.202.137.242]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id OAA14664 for ; Thu, 30 Oct 1997 14:11:07 -0800 (PST) (envelope-from andrew@guardian.fortress.org) Received: from localhost (andrew@localhost) by guardian.fortress.org (8.8.5/8.6.12) with SMTP id RAA23181; Thu, 30 Oct 1997 17:08:34 -0500 (EST) Date: Thu, 30 Oct 1997 17:08:34 -0500 (EST) From: Andrew Webster Reply-To: andrew@pubnix.net To: Kevin Brown cc: "Tom T. Thai" , Dru Nelson , "Rodney W. Grimes" , Bernie Doehner , danny@panda.hilink.com.au, freebsd-isp@FreeBSD.ORG Subject: Re: Wireless Services In-Reply-To: <3458FD5C.DA5CF7C@primelink.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Thu, 30 Oct 1997, Kevin Brown wrote: > Tom T. Thai wrote: > > > am in MN and sometimes the snow is really bad! how do we take care of > > > > the outdoor antena? line of site would be pretty bad during a snow > > storm. > > As with practically any RF-based application, normal weathering presents > no significant defects in the radio spectrum. Obviously an El-Ninio > snowstorm *might* cause some detrimental effects. I would suggest as > with any antenna which has "hollow" radials ( yagi-type ) to put a piece > of nylon rope in each of the radials and seal them with a silicon > epoxy. This will significantly reduce the stress on the antenna due to > "singing". > > Radio stations, television stations, et al use wireless technology in > bad weather everyday and normally don't experience problems. I highly > doubt the average snow storm would cause any problems. The wind should > be your biggest concern, and using the rope/epoxy should assist you in > curing that problem. > Excuse the interruption in your conversation. Actually at 2.4Ghz, you are nearing the excitation frequency of water (2.5Ghz if your average Microwave oven), you may see quite a bit of signal attenuation if there is snow/rain. Of course if your transmitter is powerful enough, you can just punch a hole in the weather. > > > > > > On Thu, 30 Oct 1997, Dru Nelson wrote: > > > > > > Rod, > > > > How did your test go with that 12mile? Also, what units from > > > > Breezecom did you test with? What did you pay for it? I have a > > building > > > > about 1/4 of a mile away that needs a connection.. I was thinking > > of doing > > > > this.. > > > > > > > > Hi Bernie! > > > > > > > > > > Make sure you have decent line of sight. The spread spectrum stuff > > is > > > supposed to deal with that, but it doesn't always work so good. > > > > > > > > > > > > > > > > .............. .................................... > > Thomas T. Thai Infomedia Interactive Communications > > tom@iic.net TEL 612.376.9090 * FAX 612.376.9087 > > > > -- > ////////////////////////////////////////////////////////////////////// > Kevin Brown WAN Specialist http://mystic.primelink.com > kbrown@primelink.com > > > Huber and Associates http://www.primelink.com > IBM Business Partner 573.634.5000 > > PrimeLink.Com Web Hosting By Design > FrontPage Presence Provider http://frontpage.primelink.com > ////////////////////////////////////////////////////////////////////// > ------------------------------------------------------------------ > Pursuate to US Code, Title 47, Chapter 5, Subchapter II, Sec. 227, > any and all nonsolicited commercial E-mail sent to this address is > subject to a download and archival fee in the amount of $500 US. > Emailing denotes acceptance of these terms. > ------------------------------------------------------------------ > The ideas and issues expressed here are not necessarily those of my > employer. I take personal responsibility for these words which I > utter. So there! > Andrew Webster andrew@pubnix.net Key fingerprint = CF E8 16 B8 A6 DB E3 C9 83 E7 96 24 25 58 15 6E PubNIX Montreal Connected to the world Branche au monde P.O. Box 147 Cote Saint Luc, Quebec H4V 2Y3 tel 514.990.5911 http://www.pubnix.net fax 514.990.9443