三种启动方式对比Hot Start (TTFF 2.5 sec)
Cold Start
Warm Start
(TTFF 41 sec) (TTFF 33 sec) Ephemeris < 2hrs old.Almanac < 6 mths old. Position within 0.5 degrees.
Not Available
Not Available
Required
Not Available
Required
Required
Not Available
Required
Required
Time within a few seconds of UTC
Not Available
Required
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