Atec HP-Symmetricom-58503B - Manual

S Y N C A N D T I M I N G
58503B
GPS Time and Frequency Reference Receiver
FIG.1 58503B GPS Time and Frequency Receiver
INTRODUCTION
The Symmetricom 58503B GPS time and
frequency reference receiver is a high quality
source of precision time, time interval, and
frequency in a lightweight compact package.
The high-performance 58503B ensures
excellent accuracy and reliability—the 58503B
delivers precise time and frequency virtually
anywhere in the world at an affordable price.
When locked to the GPS signal, the 58503B
provides a 10 MHz signal with an accuracy of
better than 1
× 10 –12 using a 1 day average. A
1 pulse per second (1 PPS) signal with timing
jitter of
< 750 ps rms is provided. Time accu-
racy relative to GPS of 20ns (1 Sigma, typical)
can be obtained once the unit is properly
installed and all systematic offsets have been
compensated out.
If the GPS signal is interrupted, the 58503B
enters an intelligent holdover mode, which
ensures frequency is maintained to better
than 1
× 10 –10 per day (phase accumulation
< 8.6 µsec after 24 hours). The technology
which does this is called SmartClock.™
SMARTCLOCK
SmartClock technology contributes
significantly to the performance of the
58503B GPS time and frequency reference
receiver. SmartClock learns and corrects for
the effects of oscillator aging and temperature.
This technology, combined with a highly reliable
oscillator, contributes to the superior price,
performance, size and reliability delivered by
the 58503B.
KEY FEATURES
• SmartClock Technology
• Designed for R&D Labs, Manufacturing
and Calibration Labs
• Low Cost Source for Precision Time
and Frequency