User Manual SICLOCK GPS1000

6.3. Precision

The absolute time precision for the individual DCF output interfaces is maximum 60 µs for the TTY interfaces and maximum 10 µs for the RS232 interface. The relative precision is better than 3 µs for both interfaces.

The relative precision specifies the maximum deviation of two sequential impulses. The absolute precision is the offset to the atomic clock supplying the whole GPS system. If signals from only four satellites or less are received, a time interval of 20ms to 50ms resulting from the signal propagation delay from satellites to the earth, must be added to the absolute times and in this case cannot be corrected by the receiver. For receiving signals from four or more satellites the inaccuracy of the receiver is maxi- mum 1µs.

6.4. Antenna stand

Fig 11: Dimensioning Antenna Stand

The stand is fixed by 4 5mm diameter countersunk head screws.

Order numberr 2XV9450-1AR82-BA

Version 2.0

19

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Siemens 2XV9450-1AR82 user manual Precision, Antenna stand
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2XV9450-1AR82 specifications

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