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Technology Stocks : Sirius Satellite Radio (SIRI) -- Ignore unavailable to you. Want to Upgrade?


To: pcstel who wrote (5275)10/5/2006 3:03:03 PM
From: i-node  Read Replies (1) | Respond to of 8420
 
The use of the Molynia Orbit has several cost advantages to the operator. One of that being a higher overall signal level at the higher latitudes than that of a GSO based system. This Molynia orbit can allow SIRI to operate with fewer terrestrial repeaters than that of a GSO based system. So the higher average signal level from the space segment actually decreases the amount of processing or "soft handoff" between the satellites and the terrestrial repeaters.

Right. If you don't count the hundreds of millions extra cost of the third satellite already in orbit and the fourth satellite (a GEO, by the way) they are having to launch to provide adequate reception (oh, yes, and the additional 100 or so repeaters they're now adding, plus the cost of the Ku bandwidth to handle the feed for the repeaters). And the additional cost for the in-orbit insurance (oh, yeah, they don't have any) and management of the extra satellites.

Which totally shoots down your argument (in fact, totally making the counterargument) that a Molynia orbit provides better signal at lower cost. In the instance of Sirius, it did NEITHER.

Yeah, Sirius engineering really made great choices (don't even get started on their choice of codec, which effectively limits their throughput to maybe 70% of XM's).

I see why that other guy is laughing at you.



To: pcstel who wrote (5275)10/6/2006 11:03:00 AM
From: kovachs  Read Replies (1) | Respond to of 8420
 
Well, first of all.. It's called a Molynia orbit which is a highly elyptical orbit. Second of all.. The use of the Molynia Orbit has several cost advantages to the operator. One of that being a higher overall signal level at the higher latitudes than that of a GSO based system. This Molynia orbit can allow SIRI to operate with fewer terrestrial repeaters than that of a GSO based system. So the higher average signal level from the space segment actually decreases the amount of processing or "soft handoff" between the satellites and the terrestrial repeaters.

LOL.....Thank you so much. You continue to make me laugh even more each day. You are completely wrong again! Wait, tell me. Is this a fact or your opinion? LMFAO. Doesn't matter. They are both wrong.
And uh, there is no higher "signal" level from space for Sirius satellites. Their signal is actually several db lower than XM's satellites signals.