[Tech1]

Hopefully the week field is longer than 10 bits. That was a headache.

[tatersolid]

Why would a GPS satellite broadcast anything other than TAI in nanoseconds?

I don’t know anything about GPS coding, but it would seem that anything calendar related like “weeks” is best left up to the receiver.

[samnardoni]

Erm, they aren’t going to change the nav data.

[elfchief]

Untrue. There's a newer format for NAV data -- CNAV. It's currently broadcast on the L2 and L5 bands, and does indeed include a larger week number field -- 13 bits to be exact.

[samnardoni]

Well, yes, that's true. But my point was that they aren't going to change the legacy nav data structure.