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  • Beitian BH-252Q GNSS precision module promotional graphic with supported systems and 4mm ceramic antenna note
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  • Package contents list for BH-222Q series: GNSS module, 1.0mm 6-pin serial cable, and 3M adhesive tape
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Beitian BH-252Q GNSS Precision Module for FPV Racing Drone & Fixed Wing, UBX/NMEA Protocol Selectable

Beitian BH-252Q GNSS Precision Module for FPV Racing Drone & Fixed Wing, UBX/NMEA Protocol Selectable

Beitian

$33.66 USD
$33.66 USD
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Overview

Beitian BH-252Q is a GNSS precision module for FPV racing drone and fixed-wing installations, designed to output positioning data through a serial (UART/TTL) port. Please confirm whether UBX or NMEA protocol is required when purchasing; the module uses the UBX protocol by default.

For configuration help or order confirmation (protocol/model), contact support at https://rcdrone.top/ or email support@rcdrone.top.

Key Features

  • Multi-satellite navigation support: GPS, GLONASS, BDS, GALILEO, IRNSS (also supports QZSS and SBAS as listed in specifications).
  • Horizontal accuracy: 1.5 m CEP.
  • Flash supported (built-in flash; configuration can be changed and is not lost in the event of power outage, as listed in the parameter table).
  • Selectable output protocols: NMEA and UBX (UBX default per purchase note).
  • Serial wiring reference: VCC/GND/TX/RX connection to USB-to-TTL adapter or microcontroller; 1PPS is shown in the wiring diagram.

Specifications

GNSS performance / electrical (parameter table)

Chip B1301N
Receiver type GPS L1, GLONASS G1, BDS B1, GALILEO E1, QZSS L1, SBAS L1, IRNSS
Default position system GPS, GLONASS, BDS, GALILEO, IRNSS
Augmentation system SBAS, QZSS
Channels 120
Sensitivity (Tracking) -163 dBm
Sensitivity (Reacquisition) -159 dBm
Sensitivity (Cold start) -148 dBm
Sensitivity (Hot start) -159 dBm
Horizontal position accuracy 1.5 m CEP
Velocity accuracy 0.1 m/s CEP
Acquisition (Cold start) 28 s
Acquisition (Hot start) 1 s
AGPS Time To First Fix 1.5 s
Baud rate 9600~2000000 bps, default 115200 bps (support sleep mode is listed in the parameter table)
Level TTL
Protocol NMEA, UBX
UBX statement PVT, SAT
Update rate 1~20 Hz (default: 10 Hz)
FLASH Support; configuration can be changed; will not be lost in the event of power outage
Work restrictions (High) 50,000 m
Work restrictions (Speed) 500 m/s
Work restrictions (Gravitational acceleration) <4 g
Voltage DC 3.6 V-5.5 V, typical: 5.0 V
Current 20 mA/5.0 V
Operating temperature -40°C ~ +85°C
Storage temperature -40°C ~ +105°C

BH-252 / BH-252P module variant table (as listed)

Parameter BH-252 BH-252P
Chip B1301N B1301N
Default positioning mode GPS L1, GLONASS G1, BDS B1, GALILEO E1, QZSS L1, SBAS L1, IRNSS GPS L1, GLONASS G1, BDS B1, GALILEO E1, QZSS L1, SBAS L1, IRNSS
Channels 120 120
Sensitivity Cold Start -148 dBm; Hot Start -159 dBm Cold Start -148 dBm; Hot Start -159 dBm
Horizontal 1.5 m CEP 1.5 m CEP
Velocity 0.1 m/s CEP 0.1 m/s CEP
Cold start 28 s 28 s
Hot start 1 s 1 s
Baud rate 9600~2000000 bps, default 115200 bps 9600~2000000 bps, default 115200 bps
Level TTL TTL
Protocol NMEA, UBX NMEA, UBX
Update 1~20 Hz, default 10 Hz 1~20 Hz, default 10 Hz
FLASH Built-in Built-in
Work restrictions High 50,000 m; Speed 500 m/s; Acceleration <4 g High 50,000 m; Speed 500 m/s; Acceleration <4 g
Voltage DC 3.6-5.5 V, typical: 5.0 V DC 3.6-5.5 V, typical: 5.0 V
Current 20 mA/5.0 V 20 mA/5.0 V
Dimensions 25*25*8.1 mm 25*25*8 mm
Weight 12 g 13 g
Connector 1.00 mm 4 pins 1.00 mm 6 pins
Operating -40°C ~ +85°C -40°C ~ +85°C
Storage -40°C ~ +105°C -40°C ~ +105°C
Compass No Built-in QMC5883P

Data Output (NMEA-0183 content list shown)

Get Parameters Get Content
GGA Time, position, number of satellites
GLL Longitude, latitude, UTC time
GSA GPS receiver operation mode, satellite used for positioning, DOP value, positioning status
GSV Visible GPS satellite information, elevation angle, azimuth angle, signal-to-noise ratio
RMC Time, date, position, speed
VTG Ground speed information

Available Model Options

  • BH-182; BH-180; BH-220; BH-280; BH-357; BH-220Q; BH-182Q; BH-222Q; BH-252Q; BH-280B; BH-280U; BH-357B; BH-357U; BH-880; BH-880Q

Details

Beitian BH-252 series GNSS module comparison table showing chip, constellations, sensitivity, update rate, power and sizeBeitian BH-252/BH-800 GNSS module model matrix with key parameters, protocols (NMEA/UBX) and voltage rangeBeitian BH-252Q GNSS precision module feature graphic highlighting 1.5 m CEP accuracy, flash support and multi-GNSS

Multi-GNSS positioning with flash-backed settings helps keep configuration stable between power cycles.

BH-252 series compact size overview and multi-satellite navigation support list (GPS, GLONASS, BDS, GALILEO, IRNSS)

A lightweight, compact footprint suits tight FPV drone stacks and fixed-wing fuselages while tracking multiple constellations.

Satellite count chart and NMEA-0183 message list for GNSS data output (GGA, GLL, GSA, GSV, RMC, VTG)

Standard NMEA-0183 sentences make it easy to parse time, position, speed, and satellite information over UART.

GNSS module sensitivity and accuracy test results showing tracking -163 dBm and horizontal accuracy 1.5 m CEP

Test data summarizes sensitivity and positioning performance, including 1.5 m CEP horizontal accuracy.

Boot time and power consumption test table listing cold start 28 s, hot start 1 s, AGPS 1.5 s, 20 mA at 5 VBH-252Q GNSS module wiring diagram for UART/TTL connections to USB-to-TTL adapter or microcontroller, with 1PPS and BOOT pins

Clear pin wiring for VCC/GND/TX/RX plus 1PPS supports quick bench setup with a USB‑TTL adapter or direct flight controller UART.

Marketing graphic referencing electronic compass direction indication and industrial-grade operation (no wiring details)Beitian BH-252Q GNSS precision module specification sheet with parameter table and pin definition (VCC, GND, TX, RX, PPS)

The spec sheet and pin definition help confirm UART level, baud rate range, and the required VCC/GND/TX/RX connections.

BH-182 functional frame diagram showing front/rear views, indicator lights, serial port pads and ceramic antenna, plus dimensions

Front/rear layout and dimensions make it easier to plan mounting and cable routing in compact airframes.

Application scenarios collage including bike sharing and electric car tracking for GNSS modulesPackage contents graphic showing BH-222P module, adapter cable, and 3M adhesive, plus unmanned vehicle application image

Included accessories cover basic installation: an adapter cable for wiring and 3M adhesive for mounting.

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