Specifications

Part 1 - Universal Socket Connectivity Chapter 1 – Universal Socket Connectivity
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342P) 38
Global Positioning System (GPS)
This information applies only to the SocketModem iCell GPRS with the GPS option.
Technical Specifications
Receiver Type L1 Frequency
GPS C/A code
SBAS Capable
51 Channel Acquisitions
14 Channel Tracking
Accuracy Position 2.5m CEP
Velocity 0.1m/sec
Timing 300ns
Open Sky TTFF Hot start 1 second
Cold start 29 seconds average
Reacquisition < 1s
Sensitivity Tracking -161dBm
Update Rate 1Hz standard
Dynamics 4G
Operational Limits Altitude < 18,000m
or Velocity < 515m/s
Datum Default WGS-84
Interface UART
Protocol NMEA-0183 V3.01, GGA, GLL, GSA, GSV, RMC, VTG
Features
• Tests 8 million time-frequency hypothesis per sec
• Open sky cold start 29 second
• Signal detection better than –161dBm
• Reacquisition sensitivity –155dBm
• Accuracy 2.5m CEP
• Multipath detection and suppression
• Supports active or passive antenna
Underwriters Laboratories Required Global Positioning System (GPS)
Statement
Note the following information required by Underwriters Laboratories:
Underwriters Laboratories, Inc. (“UL”) has not tested the performance or reliability of the Global Positioning
System (“GPS”) hardware, operating software or other aspects of this product. UL has only tested for fire,
shock or casualties as outlined in UL’s Standard(s) for Safety.UL60950-1 Certification does not cover the
performance or reliability of the GPS hardware and GPS operating software. UL MAKES NO
REPRESENTATIONS, WARRANTIES OR CERTIFICATIONS WHATSOEVER REGARDING THE
PERFORMANCE OR RELIABILITY OF ANY GPS RELATED FUNCTIONS OF THIS PRODUCT.