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Forum: Rumours & News

23rd Dec 2014, 21:08

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,293,446

Posted By sk999

R.E. Flight Magazine article

The proposed route is not all that different from routes that others have proposed. Great circle and true track routes at constant air velocity tend to end up at the Southern limit of the search...

Forum: Rumours & News

9th Jul 2014, 23:52

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,293,446

Posted By sk999

Ping Ring Data

Here are the ping ring data. Ang is the elevation angle. Ang and Arc are computed from BTO using a spherical Earth model. (I do convert geodetic to geocentric positions where appropriate.) The...

Forum: Rumours & News

9th Jul 2014, 22:35

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,293,446

Posted By sk999

Confusion over BTO and Ping Angles

When the Signaling Unit Logs for 9M-MRO were released, Inmarsat described the BTO as being the round trip delay "relative to a terminal at a nominal fixed location". There were two different...

Forum: Rumours & News

29th Jun 2014, 23:43

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,293,446

Posted By sk999

Probably not. First, the route it ran would not...

Probably not. First, the route it ran would not be the actual route of MH370. Second, for calibrating the BFO (which is the more problematic measurement) one would want to carry the actual SATCOM...

Forum: Rumours & News

24th Jun 2014, 22:54

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,293,446

Posted By sk999

Purpose of pilot signal

My understanding is that the pilot is used primarily to measure frequency errors induced by the satellite when up or down converting between L and C bands. Doppler-induced errors are a lesser...

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