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NTP Time Servers

PTP Precision Server

Gnss synchronization server

Precision laboratory frequency

Time and frequency distributor

High precision time-frequency

Universal time-frequency modul

Rubidium atomic clock

Measurement and testing instru

PNT System

Frequency synthesis

Secondary clock

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NTP Servers

We can design the optimal and most secure NTP synchronization network solution according to the scale of your network. You can freely choose external time sources such as GPS, Beidou, GLONASS, or CDMA according to your needs. Even if your installation environment does not allow receiving external signals, we can still maintain accurate network synchronization through the phase-locked local rubidium atomic clock or high-stability crystal oscillator. In addition, we have a comprehensive network-wide monitoring software that can further ensure the security of your network synchronization.
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PTP Precision Server IEEE1588

The IEEE-1588 Grandmaster Clock from BeiDou Bangtai supports PTPv2 and provides nanosecond-level time and frequency synchronization for your network environment. It can flexibly receive satellite signals such as BeiDou, GPS, and GLONASS. Compared with traditional time and frequency signal transmission methods, IEEE-1588 simplifies the process by using a Grandmaster Clock to synchronize the network, and then outputs various standard time and frequency signals such as IRIG, 1PPS, 10MHz, and E1.
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Gnss synchronization server

The GNSS synchronized clock is equipped with an intelligent learning algorithm. During the process of taming high-stability crystal oscillators with GPS/BeiDou satellites, it continuously learns and stores the characteristics of crystal drift. In the event of abnormal satellite signals, the system can automatically switch to holdover mode. It can use intelligent correction algorithms to continuously provide highly reliable time and frequency signal outputs.
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Precision laboratory frequency source

BeiDou Bangtai combines new technologies and products in the field of time and frequency, as well as GNSS, both domestically and internationally. Through a combination of introduction, digestion, and absorption, and years of practical experience and expertise, it has cooperated with domestic universities and research institutions such as the Chinese Academy of Sciences to develop hardware and software products with independent intellectual property rights. This has formed a series of mature system solutions from hardware to software.
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Time and frequency distributor

Bdstar offers a variety of time and frequency distribution products, including ultra-low noise pulse distribution, ultra-low noise frequency signal distribution, pulse signal isolation amplification, and wideband frequency signal isolation amplification. These products provide single or redundant inputs and multiple outputs. They can automatically or manually switch inputs and perform distribution, isolation, and amplification functions, and offer high driving capability, low jitter, low noise, and other advantages.
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Fiber Optic High Precision Time-Frequency Transfer

In the field of deep space exploration and basic science, BeiDou provides fiber time-frequency transfer technology for national major projects. This technology achieves ps-level time synchronization and 2E-17/s-level transmission stability over 100km.
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Universal Time and Frequency Module

The clock module adopts a highly integrated GPS/BeiDou dual-mode disciplined OCXO synchronous clock module with a constant temperature crystal oscillator. This module integrates Russian imported dual-slot constant temperature crystal oscillator OCXO and high-precision timing type GPS/BeiDou dual-mode OEM board. It uses large-scale high-speed FPGA integrated circuits as the main processing chip, and high-speed AD/DA chips and a high-precision time-frequency control algorithm based on a phase-locked loop to generate and send accurate and stable time and frequency signals (10MHz, 1PPS, TOD). The daily average accuracy of the frequency output is < 1E-12, and the real-time accuracy can reach 2E-10. The timekeeping accuracy is better than 1us/hour.
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Rubidium

The rubidium atomic clock is composed of a rubidium quantum part and a voltage-controlled crystal oscillator. The frequency of the voltage-controlled crystal oscillator is multiplied and synthesized, and then compared with the transition frequency of rubidium atoms in the quantum system. The error signal is fed back to the voltage-controlled crystal oscillator to adjust its frequency, so that it is locked to the frequency corresponding to the energy level transition unique to rubidium atoms. The short-term stability of the rubidium atomic frequency standard can reach the level of 10^-12, with an accuracy of ±5×10^-11.
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Measurement and testing instruments

We select the leading manufacturers in the world, Pendulum Instruments, to produce a series of frequency counters/time interval analyzers/analyzers, as well as the third-generation measurement products from Symmetricom, the world's leading supplier of high-performance frequency standard sources.
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PNT system

PNT (Positioning, Navigation, and Timing) system is a device that meets the high reliability requirements of military PNT systems. The system integrates global satellite navigation systems, inertial measurement units, and precision oscillators, combined with GNSS anti-jamming and anti-spoofing algorithms, to provide reliable and accurate PNT information in environments where GNSS signals are weakened, interfered with, or threatened by spoofing.
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Frequency synthesis

Beidou Bangtai provides a variety of time and frequency distribution products, including ultra-low noise pulse distribution, ultra-low noise frequency signal distribution, pulse signal isolation amplification, and broadband frequency signal isolation amplification, providing single or redundant inputs and multiple outputs. Automatic or manual input switching can be achieved to realize distribution, isolation, and amplification functions. The products have high driving capability, low jitter, low noise, and other advantages.
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Secondary clock

The digital clock adopts a 3-inch or 5-inch light-emitting diode display unit (LED) to display time signals consisting of numbers. The color is black background and red letters, and the display format is "year: month: day: hour: minute: second: week". The option supports content such as "hour: minute: second" and "year: month: day: hour: minute: second: millisecond". The installation method is wall-mounted (default method), suspended, embedded, etc., which can be determined according to the on-site environment.
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Information safety

Capital construction

Data solutions

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Enterprise Network

Secure access and control

Metrological testing

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Information Safety

"Time and frequency technology is a major driving force for improving information security. Frequency standards and time synchronization devices are essential components of modern military electronic systems. The stability and accuracy of clocks directly affect the performance of key systems such as military communication, navigation, surveillance, electronic warfare, missile guidance, and identification of friend or foe. Modern military systems have higher requirements for clock accuracy, reliability, and complex operating environments."

Defense Solutions

Capital construction

Key industries and infrastructure today rely on precise, continuous, and reliable timing and positioning information (PNT), even in the absence of satellite signals. Precise timing and synchronization in applications such as communication clocks, precise process control, intelligent control, real-time systems, and other critical tasks are crucial. These applications cannot afford the risk of failure, and even subtle delays can affect normal business operations.

Capital construction

Data

Challenge: Globalization and Continuous Growth of Big Data As Alibaba expands its global presence, its data centers are now distributed throughout the world. As a leading brand in B2B e-commerce and the largest and most active online trading platform in the global international trade arena, Alibaba expects us to use the most accurate clocks to meet their rapidly growing business needs. With the increase in the number of devices connected as the business grows, the demand for clocks in the business is also increasing. Real-time proof shows that simply adding hardware to improve synchronization capabilities and accuracy cannot be infinitely expanded, presenting both opportunities and challenges for us.
Big Data

Financial service

The People's Bank of China's Financial Security Risk Warning According to the relevant national departments, there is a security threat of "GPS spoofing" in civil GPS devices in China. "GPS spoofing" technology uses GPS signal simulation transmission devices to generate false signals to deceive GPS receiving devices, causing them to work under false signals and ignore correct satellite signals, which is a wireless attack method.

Financial solutions

Enterprise Network

We can help improve the efficiency and increase the profits of your enterprise network through precise time synchronization. To achieve this goal, we need to address the following issues: Optimize network operating environment to improve service quality Manage network latency Enhance data accuracy and security Standardize network execution standards
Enterprise Network Solutions

Secure access and control

Time servers are crucial but often overlooked devices. Security and access control systems are a part of our daily lives, yet we seldom pay attention to their complexity and the security of their system components, such as surveillance cameras, video servers, card readers, and management software, among others.

Secure access and control

Metrological testing

Deploying high-precision testing equipment is crucial for detecting components, sensors, and subsystems, particularly in increasingly complex electronic products. High-performance testing and measurement are essential for all operations, including design and development that require high-performance testing and measurement, manufacturing that demands speed and efficiency, and cost and risk management to ensure product quality and customer satisfaction.
Metrological testing

Astrophysics

BeiDou provides fiber-optic time-frequency transfer technology for national major projects in deep space exploration and basic science fields, achieving ps-level time synchronization and 2E-17/s-level transmission stability over 100km.

Deep space solutions
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T800 high-performance clock server [PDF]

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About us

Bdstar is a high-tech enterprise focusing on Beidou navigation industry, specializing in technology development, scheme integration and market service
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Corporate Honors

Bdstar is a high-tech enterprise focusing on Beidou navigation industry, specializing in technology development, scheme integration and market service
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Corporate culture

Beijing BDStar Navigation Co., Ltd. is a high-tech enterprise specializing in the research and development, production, and sales of NTP time servers,
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Core Technology

Beijing BDStar Navigation Co., Ltd. is a high-tech enterprise specializing in the research and development, production, and sales of NTP time servers,
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Success Cases

After 18 years of accumulation, the company's products have successfully served many government agencies, public security and judicial institutions, s
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Industry dynamics

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home >> Rubidium atomic clock >> CX8617ACrystal Oscillators

CX8617A
Crystal Oscillators

High stability and double constant temperature Crystal Oscillators quote

Product profile The CX8617A is a dual constant temperature low phase noise crystal oscillator, with excellent phase noise performance and frequency stability, and has good environmental adaptability, and the nominal index can be obtained in the desktop environment. Product features Near-end phase noise down to -125dBc/Hz@1Hz Stability can be reached 1.5E-13/1s，5E-13/100s +15VDC power supply Typical curve External Dimension DSUB9 Interface Definition： 1，8：The Ground 6：+15V power supply 7：+5V Reference Voltage Output 9：Frequency pressure control Other：NC	Application area Technical Parameters

CX8617A【PDF】data

Being among experts, no longer confused.

PNT stands for Positioning, Navigation, and Timing
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
Experienced
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.
Requirement customization
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.
Philosophy
"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."

Honorary qualifications

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