GPS-based Frequency Standard NGJ-40

  • Frequency Standard

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Image : NGJ-40

The NGJ-40 is a frequency standard to generate a highly stable frequency using the signals from the GPS satellites.
It can be used not only as a frequency standard for communications and broadcasting networks, but also for a wide range of applications such as a high-precision frequency standard for use in factory and research facilities and a frequency standard for calibration of measuring instruments.

FEATURES

High stability and high accuracy

The NGJ-40 is controlled by the signals from the atomic clock loaded on each GPS satellite, so that it can easily obtain a stable frequency and a precise time anywhere in the world.

Maintenance-free

No periodical calibration is needed because the equipment is automatically calibrated by the signal from each GPS satellite.

Rubidium oscillator incorporated

The NGJ-40 incorporates a highly stable rubidium oscillator, providing a stable frequency and a precise time even in the case of holdover.

Automatic switchover of AC/DC power supply

AC/DC power supply is automatically switched over, ensuring continuous operation of the equipment in case of power failure.

SPECIFICATION

Output frequency 10MHz
Frequency stability Long time ± 1 x 10-12/ month (average)
Short time ± 2 x 10-11/ sec
Temperature Coefficient ± 3 x 10-11 -10 to +45 ℃
1PPS signal UTC accuracy within ± 100ns
Dimensions (mm) 480 (W) x 99 (H) x 350 (D)