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Microcap & Penny Stocks : Globalstar Telecommunications Limited GSAT -- Ignore unavailable to you. Want to Upgrade?


To: limtex who wrote (6914)8/27/1999 8:05:00 AM
From: thomas_l  Read Replies (2) | Respond to of 29987
 
LT.

Let me phrase this differently.
G* does a soft handover between satellites within a GW
footprint.
In the case of G* the satellites move relative from west to east!
Someone sitting at the east boundary of gateway coverage
(or just outside of it) has to wait until the satellite sees both the
gateway and the handset.
The satellite moves over and finally looses sight to the gateway
but has good visibility to the handset!
From what I have learnt, this means no connection even though
another gateway is in sight
Once a call is initiated between a handset through
these moving satellites to a specific gateway the
coverage is limited to 3 points, handset, satellite, GW.
If the call could be handed over to another gateway
sitting to the east of the handset the coverage area would
increase to be not 1500 miles (radius) it would bee 3000 miles
or X times number of GW.
If the call is moved between GWs, the coverage
must increase accordingly, exactly in the same way as Iridium does move calls between satellites, hard handoff, right?

The 10-degree limit seems to be the elevation angle,
just like in Inmarsat or DirectTV.

Thomas