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

To: Peter Ecclesine who wrote (16658)	9/10/2006 1:17:16 PM
From: Frank A. Coluccio	Respond to of 46821

Petere, Responding to all three of your posts of today, Thanks! I can hardly keep up, however, so I'll put some of the references to print and read them later on, or during the coming week. Your point concerning cognitive vs dumb rings loud and clear. By remaining focused on the same bands that most cellular and pcs services now occupy, however, are we sidestepping an entire realm of possibilities in the upper-millimeter range where more spectrum can probably be assigned with less strife? What are your views there? Linear distances may be affected adversely, but then, such a model would depend on a greater number of cells (APs), all making greater use of "reusable" spectrum, or, auto-selectively, a dual or tertiary spectrum scheme. I'm reminded of how many of the risers and pathways in the larger buildings in NY City's (and I'm sure many other) districts became premium real estate (space) during the mid-Eighties. Structures like 55 Water Street, whose floorplates on its lower floors are larger than any other in Manhattan, and several of the newly-built skyscrapers on Broad Street and Wall Street, ran into severe cabling congestion problems, which limited the number and type of additional cables that could be placed for new services. Consider, the typical large brokerage may have as many as five thousand trading positions (some many more) in a building, and each desk received sometimes dozens of proprietary cables of all conceivable types. To mitigate the problem, additional risers were actually built in service elevator shafts and, in not just a few cases, through open office areas, as well. It was half-jokingly stated that the Water St. building cited above was, itself, supported at one point by so much coaxial cabling running up and down its risers that it became a part of the structural support system for the building. I say "half-"jokingly because, the iron work that was built to support the additional horizontal and vertical cables, themselves, provided bracing to parts of the building where floor weight-bearing ratings and the ratings of steel-member supports were previously inadequate. My point is that, the available space in risers and raceways, which equate to the "spectrum" of in-building cabling systems, was extremely scarce until proprietary cabling systems yielded to the consolidating effects of Ethernet. Just as importantly, fiber backbones eventually displaced the girth of physical cables that came before it for all standard- and proprietary- formats, often carrying most of them onto a couple of strands of glass. Assuming that their administration, including disconnects, have been kept current, today the same risers that once supported hundreds of cross-sectional sq ft of copper have the appearance, in comparative terms, of being almost entirely vacant. I guess you can see where I'm going with this, even if I, myself, may have lost sight of it by now ;) Thanks again for the bounty of information you delivered earlier. I'll get back to you later in the week, and you can bet I'll have some more questions! FAC ------