User's Manual

GSM/GPRS/GNSS Module Series
MC20 Hardware Design
MC20_Hardware_Design Confidential / Released 16 / 95
Table 3: Key Features (GNSS Part of MC20)
Features Implementation
GNSS GPS+BeiDou
Power Supply Supply voltage: 2.8V~4.3V Typical: 3.3V
Power Consumption
Acquisition: 25mA @-130dBm (GPS)
Tracking: 19mA @-130dBm (GPS)
Acquisition: 23mA @-130dBm (GPS+BeiDou)
Tracking: 18mA @-130dBm (GPS+BeiDou)
Standby: 300uA @VCC=3.3V
Backup: 14uA @V_BCKP=3.3V
Receiver Type
GPS L1 1575.42MHz C/A Code
BeiDou B1 1561.098MHz C/A Code
Sensitivity
GPS+BeiDou
Acquisition: -148dBm
Reacquisition: -160dBm
Tracking: -163dBm
Time-to-First-Fix
(EASY Enabled)
1)
Cold Start: <15s average @-130dBm
Warm Start: <5s average @-130dBm
Hot Start: 1s @-130dBm
Time-to-First-Fix
(EASY Disabled)
Cold Start (Autonomous): <35s average @-130dBm
Warm Start (Autonomous): <30s average @-130dBm
Hot Start (Autonomous): 1s @-130dBm
Horizontal Position
Accuracy (Autonomous)
<2.5 m CEP @-130dBm
Update Rate Up to 10Hz, 1Hz by default
Velocity Accuracy Without aid: 0.1m/s
Acceleration Accuracy Without aid: 0.1m/s²
Dynamic Performance
Maximum Altitude: 18,000m
Maximum Velocity: 515m/s
Acceleration: 4G
GNSS UART Port
GNSS UART port: GNSS_TXD and GNSS_ RXD
Support baud rate from 4800bps to 115200bps; 115200bps by
default
Used for communication with the GSM Part in all-in-one solution
Used for communication with peripherals
in stand-alone solution
NOTE