CellularVision (CVUS): 2-way LMDS wireless cable. Message Board

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Technology Stocks : CellularVision (CVUS): 2-way LMDS wireless cable.

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To: Bernard Levy who wrote (1664)	3/20/1998 8:47:00 PM
From: wonk	Read Replies (1) of 2063

Dr Levy: While reflectors have been used for years, I doubt that they will be used in any quantity. Its not worth the headache. To my knowledge, the FCC no longer issues authorizations in point-to-point services for periscopes and reflectors (existing links are grandfathered). This is due to splatter which tremendously complicates frequency coordination. Even in a service such as this, reflectors will complicate interference control. Also, as you mentioned, any misalignment (reflection coeffecient) is going to seriously impact the fade margin of the link. From the perspective of the operator, how do you handle these problems. Lets say you have a potential customer who is not LOS. With a reflector you can get him reliable service, but the fade margin is reduced by half. You therefore know that in a signifcant rainstorm his service will go out even though his next door neighbor's service (who for the purposes of this example does have LOS) stays on. Do you sell the service to this customer? IMHO, I don't think that reflectors are practical.

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