Same here, I thought it was all marketing hype, if it works like the poster mentioned, we will need to consider moving up our timetable for evaluating wimax, 10k a basestation suddenly isn't that bad with the performance described.
Regards Michael Baird > Now this is a 180* of what others have told me, even others offering > traditional, D, and E products. > > > ---------- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > ----- Original Message ----- > From: "Mike Cowan" <[EMAIL PROTECTED]> > To: "WISPA General List" <wireless@wispa.org> > Sent: Monday, July 21, 2008 6:06 PM > Subject: [WISPA] 3.650 Wimax in the field > > > > With some of the Wimax discussions going on I thought I would throw > > my hat into the ring. > > > > 3.650 Wimax using 802.16d only products provides decent connectivity, > > at a higher cost than traditional unlicensed > > gear. Performance/coverage is on par, or better than 2.4 that most > > of are used to. Pay a little extra for product, gain access to > > cleaner spectrum and hopefully a rule set that helps keep it cleaner > > than our wild wild west unlicensed world. > > > > Now deploy 3.650 using 802.16e upgradeable products. The coverage > > difference when using diversity options goes up significantly. Now > > 3.650 begins to act and feel more like a 900Mhz product with NLOS > > coverage capability. Actually our customers, and our field tests are > > showing that it exceeds 900Mhz often by a large margin. Here are a > > couple recent field examples all 2nd order diversity: > > > > Customer 1- 8.4 mile NLOS location. blocked by heavy trees . 1.5MB > > download holding CPE in their hand on the ground! Decided to test > > 5.8 at this location and @ 50' AGL the CPE got a link. 5.8 mounted > > on the same tower, same height as 3.650. The 5.8 system could not > > pass data and could just barely maintain association. > > > > Customer 2- 12.4 miles away at the owners home. 1.0mb on the > > ground. This location could not be serviced by 2.4 or 5.8 at 40' > > above the ground previously. The owner is going to mount Wimax on > > the roof and I expect he will se 10-12MB at that height. > > > > Customer 2- 12.6 miles on the ground. Completely obstructed 6MB down 3MB > > up. > > > > Customer 3- This is one of the most telling. Canopy 900 > > operator. 3.650 2nd order diversity mounted 10' below Canopy. 100% > > coverage at 3.650 of a small city. It takes 2 tower locations > > with 900 here to serve the same area. They gave up field testing > > because "it works everywhere". They the said "lets try to break > > it". We drove to a part of town that is challenged with 900 > > coverage. They found a traditionally bad coverage spot and drove up > > to a big tree, took the CPE out of the vehicle and buried it in the > > tree. -101 signal. They then picked up their VOIP phone and called > > the NOC and did a "can you hear me now"? Toll quality voice call. > > > > Our internal testing is showing similar results. Using 4th order > > diversity is showing even better results than above. When you do the > > upgrade to 16e and add Wave II CPE, Katy bar the door. That coverage > > is nothing less than jaw dropping. 2.5 miles obstructed with a PC > > card! Same PC card 1 mile away entering a commercial building, no > > signal change. Not possible with a traditional system. In this case > > the wall measured a 25db loss, however STC and MRC diversity gains > > completely made up for the attenuation once the paths became uncorrelated. > > > > Bottom line is diversity is the place to be with Wimax. It is more > > expensive, so find a way to afford it. Push your vendor for price > > breaks and don't be bashful. Alvarion for example is willing to work > > to earn business as well as the others. CPE costs for D and E > > systems are the same today, E will be much cheaper in the near > > future. Not all Wimax is the same, so test a site or visit one, you > > will walk away amazed. > > > > My two cents, and we carry all D and E products. Each has its place. > > > > Mike > > > > > > > > > > > > Mike Cowan > > Wireless Connections > > A Division of ACC > > 166 Milan Ave > > Norwalk, OH 44857 > > 419-660-6100 > > 419-706-7348 Cell > > [EMAIL PROTECTED] > > www.wirelessconnections.net > > > > > > -------------------------------------------------------------------------------- > > WISPA Wants You! Join today! > > http://signup.wispa.org/ > > -------------------------------------------------------------------------------- > > > > WISPA Wireless List: wireless@wispa.org > > > > Subscribe/Unsubscribe: > > http://lists.wispa.org/mailman/listinfo/wireless > > > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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