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                  尺寸:45X38mm 國科GK9501S芯片 GPS&北鬥雙模

                  GGM-4538-GKBD

                  Features

                  n  Build on high performance, low-power

                      GK9501 chipset

                  n  Ultra high Track sensitivity:-165dBm

                  n  Extremely fastTTFF at low signal level

                  n  Built in highgain LNA

                  n  The built-insuper capacitor for backup

                      ephemeris

                  n  Low powerconsumption: Max 45mA@3.3V

                  n  NMEA-0183compliant protocol or custom

                      protocol

                  n  Operatingvoltage: 3.0V to 5.0V

                  n  Operatingtemperature range: -40to85℃

                  n  Patch AntennaSize:25x25x4mm

                  n  Small formfactor: 45x38x13mm

                  n  Communicationtype: UART/TTL

                  n  Wire interfacetype: Molex 4Pin , L=3750px

                  n  RoHS compliant(Lead-free)

                  Parameter

                  Specification

                  Power Supply

                           Supply voltage:  3.0V~5.0V   Typical: 3.3V

                  Power Consumption

                           Acquisition:  45mA @VCC=VBAT=3.3V

                           Tracking:  40mA  @VCC=VBAT=3.3V

                           Backup:  15uA  @VBAT=3.3V

                  Receiver Type

                           Code 66 search channels, 22 synchronous tracking  channels

                           GPS&QZSS L1 1575.42MHz C/A , Beidou B1  1561.098MHz

                      SBAS: WAAS, EGNOS, MSAS, GAGAN

                  Sensitivity

                           Tracking:   -165dBm

                           Re-acquisition:   -156dBm

                           Acquisition:   -146dBm

                  TTFF (Autonomous)

                           Cold start:  35s   typ @-130dBm

                           Warm start:  30s   typ @-130dBm

                           Hot start:  1s   typ @-130dBm

                  HorizontalPosition

                  Accuracy  (Autonomous)

                           <2.5m  CEP @-130 dBm

                  Max Update Rate

                           Up to 10Hz,1Hz by  fault

                  Accuracy of 1PPS Signal

                           not enabled

                  Acceleration  Accuracy

                           Without  aid: 0.1m/s²

                  Dynamic Performance

                           Maximum  altitude: 18,000m

                           Maximum  velocity: 515m/s

                           Acceleration:  4G

                  UART Port

                           UART Port: TXD and RXD

                           Supports baud rate  from 4800bps to 115200bps, 9600bps by default

                           UART port is used for  NMEA output, GK proprietary

                      commandsinput and firmware upgrade

                  Temperature Range

                           Normal  operation: -40°C ~ +85°C

                           Storage  temperature: -45°C ~ +125°C

                  Physical  Characteristics

                           Size:  45±0.20×38±0.20×13±0.50mm

                           Connecting line specifications: molex 4pin, L=3750px

                           Weight:  Approx.20g


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