Location:Home > GNSS+INS Modlue > RTK Centimeter level GNSS

Size :58X53mm,BK166X chip, dual-band multi-mode, RS232,RTK and INS algorithm, IPX7 waterproof

GRM-5853F5DKW-BKGB



Features

Build on high performance, low-power BK1662 chip set

Built-in TDK-42670P acceleration sensor to

define various gravity algorithms

Ultra high track sensitivity: -165dBm

Concurrent reception of dual-band and multi- system satellite signals

Supports all civil GNSS signals

Supports BDS-3 signal

Supports inertial navigation modeDR

Supports RTK; Protocol:RTCM 3.3

Extremely fast TTFF at low signal level

Multipath detection and suppression

Supports passive or active antenna

Low power consumption: Max 38mA@3.3V

NMEA-0183 compliant protocol or custom protocol

Operating voltage:3.0V to 5.5V

Patch Antenna Size:35x35x4 & 25x25x4mm

Small form factor: 52.7±0.5x57.6±0.5x19.8±0.5mm

Communication type: RS232

Wire interface type: Molex 4-Pin, L=3000±50mm

Weight: Approx. 121.1g(±5%

Waterproofing grade: IP67

Operating temperature -40 ~ +80ºC

RoHS compliant (Lead-free)


 Functional Description

Parameter

Specification

Power Supply

• Supply voltage: 3.0V~5.5V  Typical: 3.3V

Power Consumption

• Acquisition: 38mA @VCC=3.3V

• Tracking: 34mA @VCC=3.3V

• Standby: 2.0mA @VCC=3.3V

• Backup: 20uA @VBAT=3.3V

GNSS engine

• 200 tracking channels with fast search engine

GNSS reception

• GPS/QZSS: L1 C/A, L5

• GLONASS: L1OF

• GALILEO: E1(E1B+E1C), E5

• BEIDOU: B1I, B1C, B2A

• INRSS: L5

• SBAS: WAAS, EGNOS, MSAS, GAGAN   

Update rate

• GNSS: 20Hz Maximum,1Hz by default

• RTK: 10Hz Maximum,1Hz by default

RTK

• RTCM3.3

DR Accuracy

• DR: Without aid: Sub-meter (6% CEP@120s)

Position accuracy

• GNSS : >1.5m CEP @-130 dBm

• SBAS : >1.5m CEP @-130 dBm

• RTK: 25px+1ppm (CEP50@-130 dBm

Velocity & Time accuracy

• GNSS: 0.01m/s CEP

• SBAS: 0.05 m/s

• 1PPS: 20 ns

Time to First Fix(TTFF)

• Hot start: 1.0 s

• Cold start: 28 s

• AGPS: 1.5s

Sensitivity

• Cold start: -148dBm

• Hot start: -165dBm

• Re-acquisition: -159dBm

• Tracking & navigation: -165dBm

GNSS Operating limit

• Velocity: 515m/s 

• Altitude: 18000m 

• Maximum Acceleration 4G

Datum

• Default WGS-84, User definable

RS232 Port

• RS232 Port: RS232_TX and RS232_ RX

• Supports baud rate from 9600bps to 961200bps, 115200bps by default.

• NMEA 0183 Protocol Ver.4.10, BK GNSS Receiver Protocol

• Supports batch data report mode

Temperature Range

• Normal operation: -40°C ~ +85°C

• Storage temperature: -40°C ~ +105°C

• Humidity: 5% ~ 95%