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Specifications

The Skylab SKM56 Series with embedded GPS antenna enables high performance navigation in the most stringent applications and solid fix even in harsh GPS visibility environments.
The module requires a power supply VCC and a backup supply VBAT voltage for non-volatile RTC & RAM blocks. There is no on-board backup battery, which the need for external backup voltage source. It enables the SKM56 module to recover from power
failure with either a hot start or a warm start.
The module interfaces to the customer's application via one serial port, which uses CMOS voltage levels.If RS232 signal levels are required, customer need to use a  CMOS-to-RS232 level converter.
 
Features
Ultra high sensitivity: -160dBm
Internal back-up battery
NMEA-0183 compliant protocol or custom protocol
Operating temperature range: -40 to 85
Embedded patch antenna 18 * 18 * 4.0 mm
Small form factor: 30*20*8.5mm
RoHS compliant (Lead-free)
 
Performance Specification
 
Parameter Specification
Receiver Type L1 frequency band, C/A code, 20-Channel
Sensitivity Tracking -160dBm
   
Acquisition -144dBm
Accuracy Position 3m CEP without SA
   
Velocity 0.1m/s without SA
   
Timing (PPS) 60ns RMS
Acquisition Time Cold Start 36s
   
Warm Start 33s
   
Hot Start 1s
   
Re-Acquisition <1s
Power Consumption Tracking <40mA /3.0V Vcc
   
Acquisition 40mA
   
Sleep/Standby TBD
Navigation Data Update Rate 1Hz  
Operational Limits Altitude Max 18,000m
   
Velocity Max 515m/s
   
Acceleration Less than 4g