GPS/GNSS

Global Navigation Satellite System (GNSS) is a constellation of satellites that can transmit positioning/timing data to receivers from space and use the data to determine the accurate location. The worldwide GNSS systems include Europe’s Galileo; the USA’s NAVSTAR Global Positioning System (GPS) ; Russia’s Global'naya Navigatsionnaya Sputnikovaya Sistema (GLONASS) and China’s BeiDou Navigation Satellite System.

The external antenna usually enjoys higher freedom of design, therefore has more potential in customizing the radiation pattern or bandwidth. Since the antenna do not have to be connected to the IoT/RF device and can be placed in optimal locations at appropriate distances using coaxial cables, it is available in a variety of styles and configurations.

The embedded antenna offers a solution to save space and cost constraints while remaining good performance. It allows for a clean package with no external attachments and is always connected to be used. It is ideal for those compact devices design that require stringent size with high-performance standards.

The dual band is a multiple-frequency system that has consistent tracklogs to improve positioning. Since it can track more than one radio signal from each satellite on different frequencies, it can reduce the factors caused by environmental interference and have better accuracy when using the device in complex environments.

UDR (Untethered Dead Reckoning) is a method that provides continuous navigation data by using sensors to calculate the distance traveled from a known position. It calculates the current position by incorporating estimates of speed, heading direction, and course over elapsed time. It is widely used in buildings, tunnels, basement parking lots kinds of sheltered environments that easily reduce positioning accuracy. 

Model NameGNSSInterfaceVoltageDead ReckoningAntennaDimension
RYS8833GPS+Glonass or GPS+BeidouUART/I2C1.8VExternal11*8*2.2mm
RYS8830GPS+Glonass or GPS+BeidouUART/I2C1.8VInternal11*11*2.2mm
RYS8839L1/L5 Dual Band multi-constellationUART/I2C1.8VExternal11*8*2.2mm
RYS8838GPS+Glonass or GPS+BeidouUART3.3VUntethered Dead Reckoning (UDR)External13*11*2.2mm
RYP8838GPS+Glonass or GPS+BeidouUSB2.03.3VUntethered Dead Reckoning (UDR)External50.95*30mm
Full/Half mini PCIe Card
RYM8838GPS+Glonass or GPS+BeidouUSB2.03.3VUntethered Dead Reckoning (UDR)External42*30mm
M.2 Card
RYS3520GPS+Glonass+BeidouUART3.3VExternal10.1*9.7*2.3mm
RYS352AGPS+Glonass+BeidouUART3.3VInternal32*32*9mm

RYS8830

- World's Tiny GNSS Antenna Module
- UART/I2C interface
- 11*11*2.2mm

RYS8833

- Ultra Low Power GNSS Module
- UART / I2C Interface
- 11*8*2.2mm

RYSS8833_Lite

- RYS8833_Lite Evaluation Board
- Ultra Low Power GNSS Module
- +1.8V UART interface

RYS8839

- L1 L5 Dual band GNSS module
- Ultra-low power
- 13*11*2.2mm

RYS8838

- 3.3V UART interface GNSS module
- Untethered Dead Reckoning (UDR)
- 13*11*2.2mm

RYP8838

- GNSS
- Untethered Dead Reckoning (UDR)
- Mini PCIe Card

RYM8838

- GNSS
- Untethered Dead Reckoning (UDR)
- M.2 Card

rys3520

RYS3520

- Cost-Effective GNSS Module
- +3.3V UART Interface
- 10.1*9.7*2.3mm

rys352a

RYS352A

- Cost-Effective GNSS Antenna Module
- +3.3V UART Interface
- 32*32*9mm

RY836AI

- AHRS application (For Raspberry Pi)
- USB 2.0 Interface
- 50*50*7.6mm

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