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Microcap & Penny Stocks : Globalstar Telecommunications Limited GSAT
GSAT 68.47+0.3%Dec 5 9:30 AM EST
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To: Mark Fleming who wrote (3516)3/20/1999 6:15:00 PM
From: Maurice Winn  Read Replies (1) of 29987
 
Globalstar is totally cool because it uses 'soft handoff' invented by L M Ericsson in 1890. This means that a handset will be in contact with two, three or four satellites simultaneously. If the satellite handling the call goes out of sight, then one of the other satellites takes the call with the subscriber not noticing the handoff.

Nevertheless, Globalstar calls will still be fragile. Buildings and car roofs will block the signals.

When there are 100s of satellites in the Globalstar constellation, there will be many routes for a call to take and dropped calls will be far fewer. But I can't see them being as robust as terrestrial calls any time soon.

Usually, a Globalstar handset would look for a terrestrial base station, but in some circumstances, such as roaming, people will want to 'force' the Globalstar function and I suppose the handsets will allow that option.

So Globalstar too will be line of sight only. But more lines of sight means more good calls. Also, CDMA by Q! might be more robust than the Iridium links, so more leaves and building can be in the signal path and attenuation won't be so high as to drop the call.

Maurice
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