Datasheets

Beacon F20P

Delivers centimeter level accuracy within seconds based on Ublox triple-band L1/L2/L5 ZED-F20P GNSS RTK module.
Onboard RM3100 and BMP581 sensors.

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Description

In production

The Siderion Beacon F20P is an affordable, compact, and high-precision triple-band L1/L2/L5 GNSS RTK (Real-Time Kinematic) device.

Powered by the latest generation of u-blox ZED-F20P modules, the Beacon F20P supports concurrent reception of GPS, Galileo, BeiDou, QZSS, and NavIC signals. Consequently, the device delivers reliable performance and fast convergence, achieving centimeter-level accuracy in seconds.

The onboard BMP581 absolute barometric pressure sensor and the professional-grade RM3100 compass enhance the overall performance of the Beacon F20P.

Its JST-GH connectors make it ideal for integration with Pixhawk, ArduPilot or any other autopilot systems.

The Beacon F20P operates across a temperature range from -40°C to +70°C.

Features

  • 5V - 100mA power supply
  • LEDs status: Power/RTK
  • Timepulse & External Interrupt
  • USB/I²C/SPI/UART digital interfaces
  • Gold plated SMA connector
  • Onboard Bosch BMP581 barometer
  • Onboard PNI RM3100 compass
  • 3.3V Active antenna input

Applications

  • Drones
  • RTK Base
  • Ground vehicles
  • Precise navigation
Block diagram & Pin description

BLOCK DIAGRAM

LED SEQUENCE

LED Name LED Color Light State Comments
POWER BLUE ON Solid blue LED when powered ON
RTK Status GREEN OFF 3D fix mode / No RTK fix
RTK Status GREEN BLINKING RTK fix but no FIXED RTK fix
RTK Status GREEN ON FIXED RTK fix

PIN DESCRIPTION TOP

UART Port

Pin Name Type Function
A1 5V IN P 5V Input
A2 UART2 TXD O UART2 Transmit
A3 UART2 RXD I UART2 Receive
A4 EXTINT I External Interrupt
A5 TIMEPULSE O Timepulse Output
A6 GND P Ground Reference

GPS Port

Pin Name Type Function
B1 5V IN P 5V Input
B2 UART1 RX / SPI MOSI I UART1 Receive or SPI MOSI
B3 UART1 TX / SPI MISO O UART1 Transmit or SPI MISO
B4 I2C SCL / SPI CLK I I2C Clock or SPI Clock
B5 I2C SDA / SPI CS I/O I2C Data or SPI Chip Select
B6 GND P Ground Reference

PIN DESCRIPTION BOTTOM

Connector P2

Pin Name Pin Name Pin Name Pin Name
1 VUSB 7 SDA 13 UART RX 19 VUSB
2 VUSB 8 GND 14 GND 20 VUSB
3 GND 9 SCL 15 GND 21 GND
4 GND 10 GND 16 GND 22 GND
5 GND 11 UART TX 17 GND 23 GND
6 GND 12 GND 18 GND 24 GND

Connector P1

Pin Name Pin Name Pin Name Pin Name
1 NC 7 PPS 13 GND 19 NC
2 NC 8 GEOSTAT 14 RST 20 NC
3 GND 9 EXTINT 15 GND 21 GND
4 GND 10 TX RDY 16 SAFEBT 22 GND
5 GND 11 GND 17 GND 23 GND
6 RTK S 12 DSEL 18 GND 24 GND

Note: The SPI port is available only when the D_SEL pin is pulled LOW.

Electrical specifications
Symbol Parameter Min. Typ. Max. Units
Vusb USB voltage 4.5 5.0 5.5 V
Vdd Internal voltage 3.3 V
Vdd_IO IO voltage 3.3 V
Idd Current w/o active antenna 50 mA
Current w/ active antenna 100 120 130 mA
Vil I/O low level input volt 0 0.8 V
Vih I/O high level input volt 2.0 Vdd+0.3 V
Vol I/O low level output volt 0.4 V
Voh I/O high level output volt Vdd-0.4 V
Top Operating Temperature -40 +70 °C
GNSS specifications
System Signal
GPS L1C/A - L2C - L5
Galileo E1B/C - E5a
BeiDou B1l - B1C - B2a
QZSS L1C/A - L1C/B - L2C - L5
NavIC L1-SPS Data - L5-SPS
Parameter Specification Value
Receiver Type Multi-band GNSS high precision
Accuracy of PPS RMS 30ns
99% 60ns
Frequency of PPS 0.25Hz to 10MHz
Operational limits Dynamic <4g
Altitude 80,000m
Velocity 500m/s
Velocity Accuracy 0.03m/s
GNSS Parameter GPS+GAL+BDS
Acquisition Cold Start 25s
Hot Start 2s
Update Rate RTK/PVT/RAW up to 25Hz
Convergence Time RTK <7s
Horizontal pos. Accuracy PVT 1.2m CEP
RTK 0.006m + 1ppm CEP
Vertical pos. Accuracy RTK 0.01m + 1ppm CEP
Sensitivity Tracking & Nav. -167dBm
Hot Start -158dBm
Cold Start -148dBm
RM3100 specifications
Parameter 50 CC 100 CC 200 CC Units
Field Meas. Range -800 to 800 -800 to 800 -800 to 800 µT
Gain 20 38 75 LSB/µT
Sensitivity 50 26 13 nT
Noise 30 20 15 nT
Noise Density 1.2 1.2 1.2 nT/√Hz
Repeatability over ±200µT 15 8 8 nT
Hysteresis over ±200µT 15 15 15 nT
Linearity over ±200µT 0.5 0.5 0.5 %
Max Sampling Rate 1600 850 440 Hz

RM3100 7bit I2C address: 0b0100000 (0x20)

BMP581 specifications
Symbol Parameter Min. Typ. Max. Units
Pres Pressure range 30 125 kPa
Abac Absolute Accuracy ±30 Pa
Reac Rel. Acc. 700 to 1100 hPa ±6 Pa
Reac Rel. Acc. 900 to 1100 hPa ±0.4 Pa
Noise 0.08 Pa
Temp_off Temperature Coeff. Offset ±0.5 Pa
Ltd Long-term drift (12 months) ±0.1 Pa
ODR Continuous Mode 480 Hz
Normal Mode 240 Hz

BMP581 7bit I2C address: 0b1000110 (0x46)

Mechanical
External Ressources

U-blox ZED-F20P datasheet: ZED-F20P-00B Data sheet

U-blox ZED-F20P integration manual: ZED-F20P Integration manual

U-blox ZED-F20P interface description: u-blox F20 HPG 2.02 Interface description

The recommended mating connector is the HIROSE ELECTRIC DF40HC(3.5)-20DS-0.4V

Datasheet: [DF40] Series Catalog

Manufacturer: DF40HC(3.5)-30DS-0.4V(51) - HIROSE Electric Group [Connector]

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