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Technology Stocks : The *NEW* Frank Coluccio Technology Forum -- Ignore unavailable to you. Want to Upgrade?

To: Frank A. Coluccio who wrote (20363)	3/22/2007 8:20:56 AM
From: Peter Ecclesine	Read Replies (1) \| Respond to of 46821

Hi Frank, Long over water shots are the hardest. The 5.8 GHz Puget Sound shot I referred to was 15 miles. The rainfall attenuation at 5 GHz runs about 0.1 dB per mile at 12 inches of rainfall per hour [http://www.wireless-bypass.com/products_list.cfm?type=Unlicensed&dc=6], which might affect an already marginal link, but you never get the same rainfall in the entire link. We've run a 5.8 GHz 18 mile shot from San Jose to Redwood City since May 2003 (using Aironet 1400s), with a 4-foot dish at the Redwood City end and a 2-foot dish on the roof of SJ building 14 (home of the Wireless Networking Business Unit). The shot scrapes (first Fresnel zone) a ten-story building in Palo Alto. Wi-Fi does not state OAM&P requirements or solutions, vendors do. I think the topic is shipping products, not standards or certification items - you are what you ship. petere