kb...@n1k.org said: > The combination of the constellation and the ionosphere are what I believe > give you the once a day (rather than once per 12 hours) bump.
There is another layer. In addition to the "normal" once-a-day type differences, the pattern of satellites drifts slowly from day to day. So there is another pattern with a period of something like a month. If you have a marginal setup, for example an indoor antenna, you can see things like the holdover times drifting both in time-of-day when they happen and in length of holdover as the satellite pattern at dawn/dusk changes. Of course, at that level of detail, there are lots of other contributions like rain that will also show up and may be more important. -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
