[time-nuts] ground plane for cheap helix antennas?
Alan Ambrose
alan.ambrose at anagram.net
Mon Jul 27 12:00:41 UTC 2015
Hi Attila, Bob et al
>>> Generally speaking, you do want satellites as low on the horizon as possible, because they give you the most accurate x/y position solution.
>>> The idea is to get a location where you can see at least 2/3 of those tracks when they are above about 20 degrees to the horizon.
>>> Hint: the holdover estimator does not handle warmup as well as it should
Thanks for the interesting responses. Especially interesting re importance of accurate location / using low elevation sats / sky view / warm-up. Getting the optimum accuracy partly sounds like a multi-dimensional optimisation problem to me - I might just write the code for that :)
I am enjoying the discussion atm on the list immensely :)
Alan
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