home >> Gnss synchronization server >> T710-B Portable GPS/BD Rubidium Atomic Frequency Standar
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T710B Portable GPS 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-locked loop technology, it combines the long-term stability of GPS with the low aging characteristics of rubidium atomic clocks, resulting in a low-phase noise, high-precision rubidium atomic frequency standard with excellent stability and high accuracy. In GPS lock mode, the 10MHz frequency stability can achieve the performance of ordinary cesium clocks, providing a cost-effective solution.
The T710B portable rubidium frequency standard outputs a 1PPS signal derived from the frequency division of the rubidium atomic clock and synchronized with the UTC time output by GPS. Compared to the original GPS second pulse, the divided pulse is smoothed, overcoming the effects of pulse fluctuations and jumps, and reproduces the UTC time reference. When the GPS signal is lost or abnormal, the device can intelligently identify and automatically switch to rubidium atomic clock holdover mode, providing a highly stable time and frequency signal.
The T710B device features a portable chassis design 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 space telemetry.
Key Features:
● Built-in high-performance rubidium atomic clock and high-stability low-phase noise crystal oscillator
● Automatic calibration of rubidium clock frequency using Beidou/GPS signals
● High-precision timing GPS receiver
● Daily average accuracy <1E-12
● Automatic switch to holdover mode when Beidou/GPS signal is lost
● Excellent long-term stability and short-term stability simultaneously
● Optional support for high-precision 100MHz/80MHz low-phase noise frequency signal output suitable for radar applications
VFD Display:
● Displays lock status and time information
● Indicators: Power status, Beidou/GPS status, lock, output
● Operating modes: Beidou/GPS lock mode, holdover mode with automatic switching
Holdover Accuracy:
● Frequency accuracy <1E-11 after 24 hours of Beidou/GPS signal loss; 1pps holdover <1us
● Timing GPS Beidou Receiver:
- Frequencies: GPS L1; BD2 B1
- System modes (configurable):
- Single Beidou positioning mode
- Single GPS positioning mode
- GPS/Beidou hybrid positioning mode
- Channels: 32 channels
- Time to first fix: Cold start <35s; hot start <1s; reacquisition <1s
- Timing accuracy better than <30ns (RMS)
- Positioning accuracy: 3m (RMS)
- Velocity accuracy: 0.1m/s
Physical and Environmental Parameters:
● Dimensions: Portable chassis 300×290×160mm
● Weight: <2.5kg
● Power supply: AC 220V±20%, 47Hz-63Hz
● Operating temperature: -10°C to +50°C
● Storage temperature: -30°C to +60°C
● Humidity: 95% non-condensing
● Power consumption: ≤30W
● Complies with the electromagnetic compatibility requirements of Section 3.9.1 of GJB2242-94 "General Specifications for Time and Frequency Equipment"
Standard Configuration:
● Host Unit: 1
● High-sensitivity timing antenna: 1
● 50m cable: 1
● 1m
power cable: 1
● Serial cable: 1
● User Manual (Chinese): 1
● 1m signal cable: 1
T710B Phase Noise Performance T710B Short-Term Stability |
Technical Specifications: |
Documentation
T710-B Portable GPS/BD Rubidium Atomic Frequency Standar【PDF】data
PDF
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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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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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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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"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."
