• Beitian BE-245 GNSS positioning module with built-in antenna, front and rear board views
  • Beitian BE-245 GNSS positioning module card showing the built-in antenna and 5-pin pad layout
  • BE-245 product features graphic showing module views, pin labels, size, voltage, and baud rate
  • BE-245 application scenario graphic showing use with drones, driverless cars, navigation, and handheld devices
  • Package contents for the BE-245 series module, including the GPS module and 4-pin serial cable
  • BE-245 product parameter sheet with module size, connector type, weight, and receiver bands
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Beitian BE-245 M10050 GNSS Positioning Module w/ Built-in Antenna, TTL NMEA/UBX for Fixed-Wing

Beitian BE-245 M10050 GNSS Positioning Module w/ Built-in Antenna, TTL NMEA/UBX for Fixed-Wing

Beitian

$29.66 USD
$29.66 USD
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Overview

Beitian BE-245 is a GNSS positioning module with a built-in timing antenna, designed for fixed-wing and other embedded navigation applications where compact size and TTL serial output are required. It supports multiple GNSS constellations on L1 and provides position, speed, and time output via NMEA/UBX protocols.

Key Features

  • Multi-constellation L1 positioning (GPS/BDS/GALILEO plus augmentation support listed below)
  • TTL-level serial data output
  • Configurable update rate: 0.25 Hz to 18 Hz (default 1 Hz)
  • Configurable time pulse signal output: 0.25 Hz to 10 MHz (default period 1 s; high level lasts for 100 ms)
  • FLASH: configuration can be changed and power will not be lost
  • Compact module size: 26*16*8.3mm; weight: 8.0g

For integration and wiring assistance, contact support@rcdrone.top or visit https://rcdrone.top/.

Specifications (BE-245)

Model BE-245
Chip M10050
Receiver type GPS L1 C/A, QZSS L1 C/A/S, BDS B1I/B1C, Galileo E1B/C, SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN
Default position system GPS, BDS, GALILEO
Augmentation system SBAS, QZSS
Channel N/A
Sensitivity (Tracking & Navigation) -166dBm
Sensitivity (Reacquisition) -160dBm
Sensitivity (Cold start) -148dBm
Sensitivity (Hot start) -160dBm
Horizontal position 2.0m CEP
Velocity 0.05m/s
Dynamic heading 0.3 deg
Time pulse RMS 30ns; 99% 60ns
Acquisition (Cold start) 27s
Acquisition (Hot start) 1s
Acquisition (Aided start) 1s
Baud rate 4800bps - 921600bps, default 115200bps
Output level TTL level
Protocol NMEA, UBX
NMEA messages RMC, VTG, GGA, GSA, GSV, GLL
Update rate 0.25Hz-18Hz, default 1Hz
Frequency of time pulse signal Configurable from 0.25 Hz to 10 MHz; default period is 1s; high level lasts for 100ms
Operational limits (Altitude) 80,000m
Operational limits (Velocity) 500m/s
Operational limits (Dynamics) <4g
Voltage DC 3.6V-5.5V, typical: 5.0V
Current 30mA/5.0V
Dimension 26*16*8.3mm
Weight 8.0g
Connector 1.00mm 4pins connector
Operating temperature -40 ~ +85
Storage temperature -40 ~ +105
LED (PPS) Not positioned, the light is off; after 3D positioning, the blue light flashes

Pin Definition (4-pin connector)

PIN Name I/O Description
1 VCC I DC 3.6V - 5.5V supply input, Typical: 5.0V
2 RX I Serial Data Input.
3 TX O Serial Data Output.
4 GND G Ground

NMEA-0183 Output Content (listed)

Get the parameters Get the content
GGA Time, location, number of satellites
GLL Longitude, latitude, UTC time
GSA GPS receiver operating mode, positioning satellites used, DOP value, positioning status
GSV Visible GPS satellite information, elevation, azimuth, signal-to-noise ratio
RMC Time, location, date, speed
VTG Ground speed information

Wiring Notes (as shown in diagrams)

  • GPS module to USB-to-TTL cable: RX, TX, GND, VCC connections are shown.
  • GPS module to microcontroller wiring diagram shows signals: 1PPS, GND, VCC, RX, TX, BOOT.
  • GPS module to flight control wiring diagram note: “TX RX cross-connects to the TX RX I2C interface of the flight controller without cross-connecting”.

Mechanical Drawing Values (mm)

  • Overall length: 26.0 1.5 0.8 1.6 15.5 15.0
  • Top view width references: 16.0 15.5 15.0 (tolerances shown: 0.2 on 16.0 and 15.5)
  • Side view height reference: 8.3 (tolerance shown: 0.3)
  • Side view additional dimensions shown: 4.0, 0.5MAX, 6.0
  • Rear view dimension references shown: 10.0 (top), 2.5 (left offset), 10.0 (bottom), 2.5 (bottom spacing)

Applications (listed)

  • Traversing machine
  • Flight control
  • Drone
  • IoT location devices
  • Car navigation
  • Portable devices such as mobile phones, tablets

Model Options (Shopify variants)

  • Model: BE-245
  • Model: BF-245
  • Model: BH-245

Model Comparison (from provided table)

Item BE-245 BF-245 BH-245
chip M10050 B1301Y B1301N
Working mode GPS L1 C/A, QZSS L1 C/A/S, BDS B1I/B1C, Galileo E1B/C, SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN GPS L1, BDS B1, GALILEO E1, QZSS L1, SBAS L1 GPS L1, GLONASS G1, BDS B1, GALILEO E1, QZSS L1, SBAS L1, IRNSS
Channel N/A 100 120
Sensitivity Cold start -148dBm; Hot Start -160dBm Cold start -148dBm; Hot Start -159dBm Cold start -148dBm; Hot Start -159dBm
Horizontal positioning accuracy 2.0 m CEP 2.0 mCEP 1.5 mCEP
Speed accuracy 0.05m/s CEP 0.1m/s CEP 0.1m/s CEP
PPS time accuracy RMS 30ns; 99% 60ns
cold boot 27s 28s 28s
Aided start 1s 1s 1s
Hot start 1s 1s 1s
Baud rate (bps) 4800bps - 921600bps,default 115200bps 9600-2000000bps, default 115200bps, support sleep mode 9600-2000000bps, default 115200bps, support sleep mode
Output level TTL level TTL level TTL level
Output protocol NMEA, UBX NMEA, UBX NMEA, UBX
Frequency of 0.25Hz-18Hz, default 1Hz 1~20Hz (default: 10Hz) 1~20Hz (default: 10Hz)
Operational Limits Altitude 80,000m; Velocity 500m/s; Dynamics <4g Altitude 50,000m; Velocity 500m/s; Dynamics <4g Altitude 50,000m; Velocity 500m/s; Dynamics <4g
voltage DC 3.6V-5.5v, typical: 5.0V DC 3.6v-5.5v, typical: 5.0V DC 3.6v-5.5v, typical: 5.0V
current 30mA/5.0V 20mA/5.0V 20mA/5.0V
size 26*16*8.3mm 26*16*8.2mm 26*16*8.2mm
weight 8.0g 8.0g 8.0g
connector 1.00mm 4pins connector 1.00mm 4pins connector 1.00mm 4pins connector
Operating -40 ~ +85 -40 ~ +85 -40 ~ +85
Storage -40 ~ +105 -40 ~ +105 -40 ~ +105

Details

Beitian BE-245 GNSS positioning module with built-in antenna and TTL NMEA/UBX output

A compact GNSS module built for fixed-wing and other embedded navigation setups.

Beitian GNSS module product overview with built-in antenna and compact board design

The built-in antenna and small footprint make integration easier in tight layouts.

BE-245 GNSS module chip and serial data overview with satellite input and TTL output

Satellite data is delivered through TTL serial output for use with onboard controllers.

BE-245 supports GPS, BDS, and Galileo positioning for flexible navigation use

Multiple GNSS options help match the module to different navigation requirements.

NMEA message list for the BE-245 GNSS module, including GGA, GLL, GSA, GSV, RMC, and VTG

Common NMEA sentences provide position, time, satellite, and speed data.

BE-245 GNSS module operating around stable satellite signals and sensitive positioning detection

Stable reception supports consistent positioning in embedded and mobile applications.

BE-245 compact GNSS module size diagram showing 26 by 16 by 8.3 mm dimensions

The small board size helps save space in lightweight builds.

BE-245 wiring examples for USB-to-TTL, microcontroller, and flight controller connections

Wiring diagrams show how the module connects to common TTL and control interfaces.

BE-245 product parameters table with module specs, pin definition, and application notes

Specifications and pin details are listed together for quick integration reference.

BE-245 module front and rear views with pin labels and board layout

Pin labels and board layout help confirm orientation before installation.

BE-245 module functional block and dimension diagram with port locations and board measurements

Functional and dimension drawings support enclosure planning and connector placement.

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