[time-nuts] Number of GPS sats in the sky?
Hal Murray
hmurray at megapathdsl.net
Thu Jul 9 20:40:35 EDT 2015
bob at evoria.net said:
> Is there a practical limit to the number of GPS sats overhead at any one
> time?
I think there is a 5 bit field for the satellite number in some of the packet
formats. You are unlikely to see more than half of them.
I think they actually have more than 32 satellites up there. The extras are
on hot standby, waiting to be told what number to use and/or to how to get
into the correct orbit.
You might read the manual for the chip you are using. It may use satellites
from other systems and it may give you a limit on the number of copies of an
array it will send.
--
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