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DeWalt SV12 manual

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Table of contents for the manual

  • Page 1

    SV12 GPS Receiver User’s Manual CTI06-117 May 2006 Prepared by: Coleman Technologies, Inc. 20 North Orange Avenue, Suite 300 Orlando, Florida 32801 (407) 481-8600[...]

  • Page 2

    Table of Contents 1.0 PREFACE ......................................................................................................................................... 1 2.0 SV12 GPS RECEIVER OVERVIEW............................................................................................. 1 2.1 Interface Pr otocols .............................[...]

  • Page 3

    1.0 PREFACE The Global Positioning System (GPS) is a sa tellite based navigation system operated and maintained by the U.S. Government. The G PS consists of a constellation of 24 satellites providing world-wide, 24 hour, three dimensi onal (3-D) coverage. GPS applications include military, surveying, marine, land, avia tion, and vehicle navigation.[...]

  • Page 4

    acquires a position fix with minimal delay after power cycling. The following information is necessary to help decrease th e tim e to track satellites after power-up and is stored in RAM when backup power is provided: • Almanac • Ephemeris • Real-time clock • Last position User settings, including port parameters and r eceiver processing op[...]

  • Page 5

    TAIP TAIP is an easy-to-use ASCII protocol de veloped by Trimble for vehicle tracking. The user can set up polling schemes and mark G PS m essages with unique identifiers. The TAIP messages and output rates are user selectable and can be configured to operate on either Port 1 or Port 2. NMEA 0183 NMEA 0183 is an industry standard protocol common to[...]

  • Page 6

    earth. Trimble’s active antennas include a pream plifier that filters and amplif ies the GPS signals before delivery to the receiver. There are two GPS antennas offered by Cole man Technologies, Inc. (1) magnetic m ount antenna and (2) bullet antenna. Equivalent antennas are available through 3 rd party vendors, for example Tessco at www.tessco.c[...]

  • Page 7

    2. Connect the antenna cable to the receiver. Push the connector onto the MCX connector on the receiver. To remove the antenna cable, pull the antenna connector off of the MCX connector. 3. Place the antenna so that it has a clear view of the sky. 4. Using the DC power cable, connect to the 3-pin power connector on the receiver. Connect the termina[...]

  • Page 8

    Note – 3.0 V is the minimum allowable voltage for battery backup. When the power output drops below 3.0 V, the real-time cloc k may not operate over the specified full temperature range and this can significantly extend the time to first fix. Power requirements are listed in Table 3.1.1-1 Table 3.1.1-1 Power Requirements Signal Voltage Current Ba[...]

  • Page 9

    3.2 Software Interface This section describes the SV12 GPS Receiver software interface, the start-up characteristics for the different interface protocols, a description of the receiver operating modes, and a brief description of the interface protocols. 3.2.1 Start-up When connected to an external GPS, the SV12 GPS Receiver contains all the circui[...]

  • Page 10

    Table 3.2.3-1 Default Serial Port Characteristics for the TSIP and NMEA Receiver Port Input Protocol Default Setup Output Language Default Setup 1 RTCM Baud Rate: 4800 Data Bits: 8 Parity: None Stop Bits: 1 No Flow Control NMEA Baud Rate: 4800 Data Bits: 8 Parity: None Stop Bits: 1 No Flow Control 2 TSIP Baud Rate: 9600 Data Bits: 8 Parity: Odd Sto[...]

  • Page 11

    Table 3.2.4-3 TAIP Receiver Protocol Summary Setting Default NMEA 0183 out/RTCM SC-104 V2.1 In Port 1: 4800 baud none-8-1 TAIP bi-directional Port 2: 4800 baud none-8-1 TSIP Data Output The Trimble Standard Interface Protocol (TSI P) is the native language for the SV12 GPS Receiver. TSIP is a binary language with a wide variety of commands and repo[...]

  • Page 12

    Note – Although the SV12 GPS Receiver supports the seven NMEA sentences that contain GPS information, the factory default setting for the receiver only outputs the GGA and VTG data strings. To change the out put interval or sentence output, use TSIP Command Packet 0x7A. 10[...]

  • Page 13

    Appendix A – Specifications ENVIRONMENTAL SPECIFICATIONS Operating temperature - 4 0 o C to +85 o C Storage temperature -55 o C to +100 o C Vibration 0.008 g 2 /Hz 5Hz to 20Hz 0.05 g 2 /Hz 20Hz to 100Hz 3bD/octave 100Hz to 900Hz Operating humidity 5% to 95% R.H., non-condensing, @ +60 o C Altitude -400m to +18,000m PERFORMANCE SPECIFICATIONS Gene[...]