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Table of Contents
Related Manuals for Holux GM-270
Summary of Contents for Holux GM-270
- Page 1 GM-270 CF GPS Receiver User’s Guide Jul 05, 2002...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. Introduction ……………………………………………………………………………………….. 1.1 Overview …………………………………………………………………………………….. 1.2 Features …………………………………………………………………………………….. 2. Brief Information ……………………………………………………………….………………… 2.1 Hardware Interface …………………………………………………………………………… 2.2 Software Interface …………………………………………………………………………… 3. Functional Test ………………………………………………………………………….…… 4. Trouble Shooting …………………………………………………………………………….… 5. Specifications ………………………………………………………………………………………. ……………………………………………………………………………………………… 6. Warranty... -
Page 3: Introduction
1. Introduction 1.1 Overview 1.2 Features The GM-270 provides a host of features that make it easy for integration and use. 12 parallel satellite-tracking channels for fast acquisition and reacquisition。 High speed signal acquisition using 1920 time/frequency search channels. Built-in hardware Tracking Loop Processor WAAS/EGNOS Demodulator... -
Page 4: Brief Information
2. Brief Information 2.1 Hardware Interface 2.1.1 GM-270 Dimension 91 (L) x 50 (W) x 20 (H) mm 2.1.2 Hardware Interface External Antenna Connector... - Page 5 A. Link to PDA B. Link to NoteBook...
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Page 6: Software Interface
GM-270 CF GPS Receiver Signal Position Fixed. ◆ External Antenna Connector (MCX)…..Optional As using GM-270 CF GPS Receiver in a RV car, truck or bus, it might receive poor signals through limited view to the sky. Replace the foldable antenna with the active one to get better satellite signals. - Page 7 Units Meters Age of Diff. Corr. second Null fields when DGPS is not used Diff. Ref. Station ID 0000 Checksum <CR> <LF> End of message termination Table 2-3 Position Fix Indicator Value Description 0 Fix not available or invalid GPS SPS Mode, fix valid Differential GPS, SPS Mode, fix valid GPS PPS Mode, fix valid 2.2.1.2 GNSS DOP and Active Satellites (GSA)
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Page 8: Rtcm Received Data
Name Example Units Description Message ID $GPGSV GSV protocol header Number of Messages Range 1 to 3 Message Number Range 1 to 3 Satellites in View Satellite ID Channel 1 (Range 1 to 32) Elevation degrees Channel 1 (Maximum 90) Azimuth degrees Channel 1 (True, Range 0 to 359) -
Page 9: Functional Test
3. Functional Test ◆ Install Guide： 1. Install GPSViewer.exe from PC to your PDA(Microsoft Pocket PC OS or alike). (1) Install Microsoft ActiveSync to your PC, refer to your Pocket PC manual for installation procedure. (2) Setup your Pocket PC cradle to Desktop PC UART port. The Microsoft ActiveSync will detect your Pocket PC automatically. - Page 10 2. Push “Start”→”programs” bottom→“ GPS Viewer” 3. Push “Scan” bottom to scan your Com Port. Select your Com Port (COM 1〜COM 10)， then push “Open GPS” bottom.
- Page 11 4. Select “GPS Status” to show the satellite diagram like below.
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Page 12: Trouble Shooting
Reason Solution Connect an external antenna which locate as a Weak or no GPS signal can be received at the open space to your GM-270 CF GPS and then No position place of GM-270 CF GPS press Reset Button output but timer... -
Page 13: Specifications
5. Specifications Tracks up to 12 satellites. Receiver: L1, C/A code LED function: Snap Start: <3 sec(at < 25 minutes off power On/Off and Navigation period). Update Indication Update rate: 1 HZ. Operation Temperature: Acquisition time to +70 Reacquisition 0.1sec.averaged Store Temperature: Hot start 8 sec., averaged... -
Page 14: Warranty
6. Warranty The GM-270 is warranted to be free from defects in material and functions for one year from the date of purchase. Any failure of this product within this period under normal conditions will be replaced at no charge to the customers.