Originally Posted by
DJ77
Hyperveloce:
Nobody knows if things were switched off or on during the hour or so prior to the 18:25 logon (the period when the satcom kept completely silent). Could have been a problem with antenna steering, for example.
If I remember correctly, the most probable cause for the large BFO excursions at each sat link logon (18:25 and 00:19) would be that the OXCO was no longer thermally regulated (SATCOM switched off for at least several minutes).