At 7/1/2010 10:20 AM, awrote: >It would be interesting to see this.... So far the only folks who have >been successful with beamforming products (off the shelf easily >available) in the 802.11n have been the Ruckus Wireless Folks. They had >been sticking to indoor units because of their business relationships >with the Outdoor beam forming folks like Wavion and Gonetworks both of >them built nice outdoor units aimed towards Muni Wireless..but only do >802.11a/b/g no N to the best of my knowledge.
>Ruckus is slowly venturing out into the outdoor radios market place. Their outdoor products look somewhat interesting. They claim 14 dB gain from beamforming which, with their 22 dBm power, puts them right at the legal PtMP limit. (No doubt not a coincidence!) Anybody here played with them? I wonder if the beamforming is smart enough (dynamic) to deal with tropo ducting, especially over water. E.g., the target is at 20 degrees bearing, but an inversion is diverting the signal away, so maybe pointing at 40 degrees will get through better at the moment. BTW their web site is demented! I use NoScript. When I do NOT allow scripts from them, I can see the whole product page, with the specs. When I allow scripts, it essentially puts up a different, much shorter page, the "idiotarian" version. In Chrome, the same thing happens if you just turn on or off Javascript support. >Meanwhile... Ubiqiti is doing something very interesting... they are >coming up with 802.11n based radios with MIMO antennas for 3.65mhz and >900mhz it will be very interesting to see how these perform. I wonder if their low-cost hardware will support beamforming, or just muxing (high speed MIMO). Beamforming takes a lot more software. >The only other folks who claim to be doing some wonderful stuff with >900mhx are the XgTechnology folks... but you decide if they are for real.... :-) XG made some Extraordinary Claims in their startup phase. The company's BoD is all financiers, no techies. They have raised a lot of cash and have no products. Hmmm... But their white paper describes something rather more ordinary. It is a 1.3 Mbps carrier in a 1.44 MHz channel. Yawn. The only secret sauce is a better scheduler than WiMAX, if you're mainly interested in CBR channels like phone calls. I had a long talk yesterday with a vendor I won't name... he made extraordinary claims too, but when I put on my hard-core techie act and started throwing stuff back at him, he backed down fast, and his claims became more ordinary, and frankly behind the market. There are companies designed to sell product to users, and companies designed to sell stock to speculators... >Faisal Imtiaz >Snappy Internet& Telecom > >On 7/1/2010 9:57 AM, Fred Goldstein wrote: > > I wonder how WiMAX would work on 900 MHz. Beamforming base antennas > > would be rather large, but I could see a market, especially if it > > nulled out interference. -- Fred Goldstein k1io fgoldstein "at" ionary.com ionary Consulting http://www.ionary.com/ +1 617 795 2701 -------------------------------------------------------------------------------- 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/
