General Description
    The BKR-4238 is a receiving module that supports dual-band&multi-mode. It has built-in highly integrated GNSS receiver chip, supports multi band and multi system cm4f (main frequency 350mhz, 22nm Technology) chip of Third- generation BeiDou Navigation Satellite System (BDS-3). Besides,it is capable of tracking all global civil navigation systems (BDS,GPS,Glonass,Galileo,QZSS, IRNSS and SBAS) in all bands.
    BKR-4238 is based on the state ofart BDS- 3 architecture, integrating multi-band andmultisystem GNSS RF and base band. This newly designed architecture makes this single chip achieve sub-meter level position accuracy without correction data from ground-based augmentation station and higher sensitivity, greater for improved jam resistance and multipath, provide a highly robust service in complicated environment.
    BKR-4238 module contains BK 1662G positioning engine inside, featuring high sensi tivity, low power consumption, and fast TTFF. The s uperior cold start sensitivity allows it to acquire, tra ck, and get position fix autonomously in difficult we ak signal environment. The receiver’s superior tracki ng sensitivity allows continuous position coverage in nearly all outdoor application environments. The hi gh performance signal parameter search engine is ca pable of testing 16 million time-frequency hypothese s per second, offering superior signal acquisition and TTFF speed.

Applications
LBS (Location Based Service)
PND (Portable Navigation Device)
Vehicle navigation system
Mobile phone

Features
Build on high performance, low-power BK1662G chip set
Ultra high Track sensitivity: -163dBm
Concurrent reception of dual-band and multi- system satellite signals
Supports all civil GNSS signals
Supports BDS-3 signal
Supports RTK;Protocol:RTCM 3.3
Extremely fast TTFF at low signal level
Multipath detection and suppression
Works with passive and active antenna
Low power consumption: Max 50mA@3.3V
NMEA-0183 compliant protocol or custom protocol
Operating voltage:3.0V to 5.5V
Patch Antenna Size:35x35x4 & 25x25x4mm
Small form factor: 38.52±0.5x42.2±0.5x12.73±0.5mm
Communication type: UART/TTL
Wire interface type: 5 pads
Operating temperature -40 ~ +85ºC
RoHS compliant (Lead-free)