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Microcap & Penny Stocks : Globalstar Telecommunications Limited GSAT
GSAT 56.80+0.2%Nov 21 9:30 AM EST

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To: Pierre who wrote (19331)11/17/2000 1:49:02 PM
From: pcstel  Read Replies (1) of 29987
 
Pierre.. First of all.. IS-95 (QCOM technology) based WLL systems (like Vesper in Brasil) is what is commonly called "Narrow-Band CDMA".. But, there are other varieties of WLL CDMA.. Like IDCC's BCDMA which does not use QCOM IPR. WLL's applications are not limited in the sense of scalability. In other words. QCOM IS-95 based WLL can take full advantage of technology improvements provided to Mobile CDMA Service Providers.. So these IS-95 WLL networks will support 1XMC, and CDMA HDR. The only real difference between WLL IS-95 CDMA, and Mobile IS-95 based CDMA is that hand-off in the WLL system is not supported. In other words.. The spectrum that is "reserved" for cell to cell hand-off in mobile systems, can be fully utilized in the WLL system. Since "in theory" no hand-off is ever going to take place. WLL systems typically use standard POTS telephones. The Wal-Mart Variety that most homes use. The phone is connected to a "black box" that plugs into the wall electrical outlet for power. The "black box" provides all the Wireless Interface... So it is pretty hard to carry the system around with you. So it's safe to say that it is a Fixed System..

<<Why can't WLL be combined with G* to give remote villages cheap local calls (within village) and rely on G* connection to route calls going to rest of world.>>

How to connect to the outside world.. Well, how do "truely remote" Cell towers interface with the PSTN? The answer is through a "microwave backhaul"

wirelessclick.com

Microwave backhauls are the cheapest alternative for remote applications.. They are very reliable, and stable once installed. Several years ago.. I shared a story with RocketScientist on Yahoo about the "fairy tale" demand for G*, from these remote villages with no telecommunications capabilities..

In my early years (the 70's) , I worked for maker of Broadcast Television and Microwave Equipment. Harris Corporation out of Quincy, IL.

I spent "several years" installing microwave backhaul systems/TV and Radio Transmitters in several South American countries.. These microwave systems connected these rural villages with the PSTN networks in other cities. These villages usually had a "central call station" where for a small fee. Someone could enter a booth and place a call to another city in the country, or anywhere in the world. These microwave systems reached even small villages of less than 200 people.. This was in the mid-1970's. And even at this date.. Even remote communities had access to communications services.. "Not necessarily personal communicaitons though".

So what I am trying to get at is that using Globalstar as the backhaul is not a financially solvent concept. Microwave is "MUCH CHEAPER" and can handle more capacity "Mhz to Mhz" versus G*...

PCSTEL
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