home >> Gnss synchronization server >> T710 GPS Beidou Rubidium Atomic Frequency StandardGPS Beidou Rubidium
Product Description:
The T710 GPS/BeiDou Rubidium Atomic Frequency Standard consists of a high-precision timing GPS receiver, high-performance rubidium atomic clock, low-phase noise phase-locked loop circuit, control module, and high-precision filtering module. By utilizing digital phase-locking technology, it combines the long-term stability of GPS with the low aging characteristics of the rubidium atomic clock, creating a low-phase noise, high-precision rubidium atomic frequency standard with excellent stability and accuracy. In GPS lock mode, the frequency stability of the 10MHz output can reach that of a standard cesium clock, providing a cost-effective solution.
The T710 Rubidium Atomic Frequency Standard outputs a 1PPS signal obtained by dividing the frequency signal of the rubidium atomic clock and synchronizing it with the UTC time output by GPS. Compared to the raw GPS second pulse, the divided pulse is smoother, overcoming the influence of pulse fluctuations and jumps, and replicates the UTC time reference. When the GPS signal is lost or abnormal, the device can intelligently identify the situation and automatically switch to the rubidium atomic clock holdover mode, providing a highly stable time and frequency signal continuously.
The T710 device is designed in a 1U rack-mount chassis and can output 10MHz, 5MHz, 1MHz, 1PPS, and TOD information. It can be widely used in fields such as communication, metrology calibration, power, electronic warfare, and aerospace telemetry and control.
Output Signals:
- 10MHz: 1 channel, BNC, standard sine wave, amplitude 12±1dBm, 50Ω
- Accuracy: ≤1E-12 (after 48 hours of power-on, GPS lock mode, 24-hour average accuracy)
- Power-on characteristics:
- 5 minutes after power-on: ≤5E-10
- 4 hours after power-on: ≤1E-11
- 12 hours after power-on: ≤5E-12
- Stability:
- ＜6E-10/1ms
- ＜1E-10/10ms
- ＜6E-11/100ms
- ＜1E-11/1s
- ＜5E-12/10s
- ＜3E-12/100s
- ＜1E-12/day (GPS lock mode)
- Phase noise:
- ≤ -90dBc/Hz @ 10Hz
- ≤ -120dBc/Hz @ 100Hz
- ≤ -140dBc/Hz @ 1kHz
- ≤ -160dBc/Hz @ ≥10kHz
- Distortion:
- Harmonic: ≤ -50dBc
- Non-harmonic: ≤ -100dBc
- 5MHz, 1MHz: 1 channel each, specifications same as 10MHz
- Divided second pulse:
- 2 channels, BNC, TTL level, output impedance 50Ω
- Synchronization accuracy: <30ns (
RMS)
- Pulse width: 500ms
- Rise time: <10ns
- Jitter: <1ns
- Synchronized with GPS when in lock mode, maintained by the built-in rubidium atomic standard when GPS is lost.
- TOD interface:
- 1 channel, DB-9 Female, GPGGA, GPRMC sentences, GPS information
- Baud rate: 9600, data bits: 8, parity: None, stop bits: 1
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Physical and Environmental Parameters:
Dimensions: 2U rack-mount chassis, 447mm × 89mm × 300mm
Weight: <3kg
Power Supply: AC 220V ± 20%, 47Hz to 63Hz
Operating Temperature: -10°C to +50°C
Storage Temperature: -30°C to +60°C
Humidity: 95% non-condensing
Power Consumption: ≤50W
Compliance: Meets the electromagnetic compatibility requirements specified in GJB2242-94 "General Specifications for Time and Synchronization Equipment," section 3.9.1.
T710 Phase Noise Performance T710 Short-Term Stability |
Documentation
Being among experts, no longer confused.
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PNT stands for Positioning, Navigation, and Timing
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Bd Star is a national high-tech enterprise specializing in Beidou GPS timing and navigation industry. The company is dedicated to the research and development, design, production, and sales of system solutions such as standard time timing
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Experienced
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BdSTAR TIME seamless switching technology for redundant reference sources includes several technical components such as high-precision phase-shifting technology, reference clock, FPGA, integrated analog stretching, asynchronous serial communication, parameter storage, and master clock output.
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Requirement customization
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The core technology team of the company has many years of research and development experience in the field of timing and frequency. They possess multiple key core technologies in high-precision timing, PNT combination, frequency measurement, control, optical fiber time-frequency transfer, recovery, and maintenance.
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Philosophy
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"Our team of experts is committed to providing you with the best industry solutions, reducing project costs, and saving your valuable time. Additionally, our ability to design and use various timing and navigation components enables us to develop customized products for various special applications."
