steve ulrich wrote: > > i was really curious to try that out and went out and tried it from > the park by orchestra hall and along the front of the hilton. color > me unimpressed, but candidly the weather for IETF wasn't all that > conducive to hanging outside and "chillin'" with your laptop. > coverage inside this time around was equally spotty. > > given the spectrum involved here color me a tad sceptical on this > stuff until the signal processing gets better. >From what I know of the [origina] Vivato product, I have trouble believing that it will scale well. If it is still attempting dynamic beam steering to increase the effective range/throughput, I have to wonder what the graph of <gain per client> against <number of clients> looks like. Perhaps they have modified their approach, and are now more of an exercise in integration (4 APs, 1 package, 1 antenna, 1 management headache.) The cellular industry learned long ago that spatial frequency re-use (reducing cell size) was the best way to increase the number of supported users and call quality as the user base increased.) If there is some particular Vivato secret-sauce, I'd be intrigued to learn more about it, and whether it has it's roots in phased-array radar processing. > when last we saw our hero (Saturday, Nov 22, 2003), > Scott Dier was madly tapping out: > > BTW, when IETF was here they had an outdoor phased array antenna to > > cover some areas outside the hotel, including Brit's Pub. > > Supposedly it worked failry well. The unit is quite spendy, but it > > sounded like it has a few AP's in it and gets something like 120deg > > coverage. I didn't have a chance to try it out, though. > > > > http://www.vivato.net/prod_tech_overview.html > [...] -- andyw at pobox.com Andy Warner Voice: (612) 801-8549 Fax: (208) 575-5634 _______________________________________________ Twin Cities Wireless Users Group Mailing List - Minneapolis/St. Paul, Minnesota http://www.tcwug.org tcwug-list at tcwug.org https://mailman.real-time.com/mailman/listinfo/tcwug-list