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QUICK START GUIDE
MOTOROLA Oncore
GPS Module for Embedded OEM
A rugged and reliable eight-channel receiver, the Oncore™ GT provides position and velocity
data anywhere on Earth, at any time of day, in any weather. It also provides accurate time. A
one-pulse-per-second signal output is synchronized to UTC within a nominal accuracy of five
hundred nanoseconds—ideal for multi-site synchronization and time-distribution applications.
Features
• 8-channel parallel receiver, 8 simultaneous satellite vehicles, L1 1575.42 MHz
• Code plus carrier tracking (carrier-aided tracking)
• Velocity: 1000 knots (515 m/s); > 1000 knots at altitudes < 60,000 ft.
• Position filtering
• Antenna current sense circuit
• Operates from +5 Vdc regulated power
• TTL interface to host equipment
• 3-dimensional positioning within 25 meters, SEP (without Selective Availability [SA])
• Latitude, longitude, height, velocity, heading, time, and satellite status information output either
continuously (once per second) or polled
• Differential GPS with Motorola binary corrections
• RTCM SC-104 differential GPS correction input on second comm port
• Motorola binary protocol at 9600 baud
• NMEA 0183 output at 4800 baud: GGA, GLL, GSA, GSV, RMC, VTG, ZDA sentences
• Velocity filtering
• 1PPS output (+/- 500 ns accuracy)
Time To First Fix (TTFF)
• < 15 s typical TTFF-hot (with current almanac, position, time and ephemeris)
• < 45 s typical TTFF-warm (with current almanac, position and time)
• < 90 s typical TTFF-cold
Oncore™ Operation Voltage and Current Ranges
5VDC Main power
Voltage: 4.75 V to 5.25 V
50 mV peak-to-peak ripple
Current: < 0.9 W at 5 V at 25°C with active antenna drawing 20 mA
BATTERY (Externally applied backup power)
Voltage: 2.5 V to 5.25 V
Current: 5 µA typical @ 2.5 V
100 µA typical @ 5.0 V
IMPORTANT NOTICE: The information presented in this document is presented "AS-IS" and
no warranty or guarantee is offered or implied. Nor is any liability assumed for any damages,
either actual or punitive incurred by the use or misuse of the information contained in this
document.
GT
™
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Related Manuals for Motorola Oncore GT
Summary of Contents for Motorola Oncore GT
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Page 1: Quick Start Guide
• Latitude, longitude, height, velocity, heading, time, and satellite status information output either continuously (once per second) or polled • Differential GPS with Motorola binary corrections • RTCM SC-104 differential GPS correction input on second comm port • Motorola binary protocol at 9600 baud •... -
Page 2: Electrical Connections
ONCORE™ USER’S GUIDE The complete Oncore™ User’s Guide is available in Acrobat .pdf file format at the Motorola GPS products website: http://www.motorola.com/ies/GPS/products/manual.html ELECTRICAL CONNECTIONS The Oncore™ receives electrical power and receives/transmits I/O signals through a 10-pin power & data connector mounted on the Oncore™. Refer to Figure 1 for pin numbering. - Page 3 1. Attach the desired antenna connector (typically SMB or BNC female) to one end of the RG-174. 2. On the end of the cable that will connect to the Oncore™ GPS receiver, remove the outside jacket to approximately 0.75” (2 cm) from the end. Carefully separate the braid of the RG-174 to one side.
- Page 4 The schematic provided with this guide presents a simple RS-232 interface for use with the Oncore™ GT GPS receiver and a PC or Laptop. This circuit is intended to be a starting point for your design needs. Additional components and design work may be required for your application and construction methods.
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Page 5: Software Resources
Many GPS applications found on the Internet utilize “NEMA” communications output protocol between the GPS receiver and PC software. The ability to use this common protocol provides for a large number of existing programs that can be utilized by this receiver. We recommend you start your functional verification and initial operations with VisualGPS. - Page 6 WinOncore12 Software for GPS Receivers (Free) http://www.motorola.com/ies/GPS/products/winOncore™12.html WinOncore12 is distributed with Motorola's Oncore™ evaluation kits and is designed for evaluation and testing of Oncore™ GPS receivers. This utility aids the user in initializing and operating the Oncore™ receiver. The software includes diagnostics, satellite signal strength readouts, satellite positions, navigational information, plotting and printing data from the receiver;...
- Page 7 Holder Coin cell lithium battery holder misc. 0.1’ prototype PCB, RG-174 with BNC or SMB Female connector Case Appropriate project case QUICK-START GUIDE, MOTOROLA Oncore™ GT - GPS Module for Embedded OEM Bill of Materials Table 3 - Parts List...