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Originally Posted by herrubermensch
Some have referred to "enabling" almanac mode? Is this an approach? How does one do it?
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The almanac is the table of satellite orbital data corrections.
It is automatically downloaded from the satellite.
It cannot be "enabled", "switched on" or "switched off". It is simply there.
On a working system, the almanac is lost when the car battery is disconnected. The car then needs to re-acquire the almanac, which can take around 10min on a stationary vehicle, or up to 30min when moving.
Having almanac loaded means the GPS acquires satellite signals much faster at switch on.