[time-nuts] What position is measured?

Peter Krengel krengeldatec at gmx.de
Tue Sep 7 05:57:05 UTC 2010

Hi nuts,

have got some interesting question from friends.
They asked 

What coordinates are measured and registrated by a GPS.
Is it the position of the antenna, it could be 100m (300ft) away from me
or is it the position of the GPS RX as this is the position of the µC where
signals are processed?

I answered, its allways the antenna position as there is the point where
wave fronts coming in from the sats becomes electrical signals (note we are
not talking about PPS but coordinates)...

What do you think?

Peter, DG4EK

More information about the time-nuts mailing list