<html><head><base href="x-msg://128/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I have done this successfully in the past using Proxim products. ( <a href="http://Proxim.com">Proxim.com</a> )<div>I dealt with three buildings. One was about 40 meters away and the other was about 100 meters away.</div><div>We used the unlicensed band at 5GHz.</div><div>One thing you should do is conduct a frequency survey of the area in the range of frequencies you plan to use. You can rent an analyzer to do this.</div><div>You could consider optical point to point units. They are more susceptible to weather. They are less prone to interference.</div><div>Feel free to pick my brain about this. I sent Proxim a question about your setup.</div><div>720 222 1309</div><div>Gus</div><div><br></div><div><br></div><div><font face="arial" size="2"> The 5.15-5.25 GHz band is intended for
short-range devices, for functions such as connecting all the computers
in the classroom to the teacher's computer. The 5.25-5.35 GHz band is
intended for midrange devices. When added to the teacher's computer, it
would connect to the school's local-area network. The 5.725-5.825 GHz
band is designed for use with the wide-area network based on either
point-to-point or multipoint operation. The device used with this band
could connect the school's network to a district network across town. </font><br><div>=================================================================<br><div><br><div><div>On May 23, 2011, at 10:49 AM, <a href="mailto:dennisjperkins@comcast.net">dennisjperkins@comcast.net</a> wrote:</div><br class="Apple-interchange-newline"><div><div style="font-family: Arial; font-size: 12pt; color: rgb(0, 0, 0); ">This might be overkill, but if you need to keep it secure, you could look at Prosoft Technology. They sell industrial grade equipment, so it's not cheap, but some of their wireless devices do frequency hopping. We don't use their wireless modules but we use other modules in the systems we sell.<br><br><a href="http://www.prosoft-technology.com/">http://www.prosoft-technology.com/</a><br><br><br>----- Original Message -----<br>From: "Mike Stanczyk" <<a href="mailto:stanczyk@pcisys.net">stanczyk@pcisys.net</a>><br>To:<span class="Apple-converted-space"> </span><a href="mailto:lug@lug.boulder.co.us">lug@lug.boulder.co.us</a>,<span class="Apple-converted-space"> </span><a href="mailto:clue@cluedenver.org">clue@cluedenver.org</a><br>Sent: Monday, May 23, 2011 10:18:12 AM<br>Subject: [clue] Long range wireless bridging<br><br>I've been asked to look into wireless bridging at my new job(yeah!).<br><br>We have three buildings. E has a 40Mbit connection. A has a 2 Mbit<br>connection. M has a wireless bridge connection to A at .75Mbit using<br>a consumer 802.1b router with a MaxRad antenna.<br><br>Distances involved:<br>A->E 177 meters<br>E->M 209 meters<br>A->M 115 meters<br><br>I want to bridge E's connection to both A and M. So the consumer grade<br>routers are not going to cut it.<br><br>Advice on high end routers sought. I've been told Teletronics is a good<br>name. Horror stories welcome as well.<br><br>Mike<br>_______________________________________________<br>clue mailing list<br><a href="mailto:clue@cluedenver.org">clue@cluedenver.org</a><br><a href="http://cluedenver.org/mailman/listinfo/clue">http://cluedenver.org/mailman/listinfo/clue</a><br></div>_______________________________________________<br>clue mailing list<br><a href="mailto:clue@cluedenver.org">clue@cluedenver.org</a><br><a href="http://cluedenver.org/mailman/listinfo/clue">http://cluedenver.org/mailman/listinfo/clue</a></div></div><br></div></div></div></body></html>