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GPS 17x HVS
TECHNICAL
SPECIFICATIONS
Garmin International, Inc.
st
1200 E. 151 Street
Olathe, KS 66062 USA
190-00885-07, Revision A
August 2008
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© 2008 Garmin Ltd. or its subsidiaries Garmin International, Inc. st 1200 East 151 Street, Olathe, Kansas 66062, U.S.A. Tel. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin (Europe) Ltd. Liberty House, Hounsdown Business Park, Southampton, Hampshire, SO40 9RB, U.K. Tel. +44 (0) 870.8501241 (outside the UK) 0808 2380000 (within the UK) Fax +44 (0) 870.8501251 Garmin Corporation nd No. 68, Jangshu 2 Road, Shijr, Taipei County, Taiwan Tel. 886/2.2642.9199 Fax 886/2.2642.9099 Al
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TABLE OF CONTENTS 1 Introduction..............................................................................................................................1 1.1 Cautions...........................................................................................................................................................1 1.2 Limited Warranty ............................................................................................................................................2 1.3
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4.2.9 Geographic Position (GPGLL)........................................................................................................................ 15 4.2.10 Estimated Error Information (PGRME) .......................................................................................................... 15 4.2.11 GPS Fix Data Sentence (PGRMF) .................................................................................................................. 15 4.2.12 Map Datum (PGRMM) .......
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1 INTRODUCTION 1.1 CAUTIONS CAUTION The GPS system is operated by the government of the United States, which is solely responsible for its accuracy and maintenance. Although the GPS 17x HVS is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted, and therefore become unsafe. Use these products at your own risk. To reduce the risk, carefully review and understand all aspects of these Technical Specifications before using the GPS 17x HVS. When in actua
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1.2 LIMITED WARRANTY This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, Garmin will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost. This warranty does not cover failures due to abuse, misuse, accident, o
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1.3 OVERVIEW The GPS 17x HVS is an embedded receiver and an antenna. Based on the proven technology found in other Garmin GPS receivers, the GPS 17x HVS tracks multiple satellites at a time while providing fast time-to-first-fix, precise navigation updates once per second, and low power consumption. This generation of GPS sensors includes the capability of FAA Wide Area Augmentation System (WAAS) differential GPS. The GPS 17x HVS design uses the latest technology and high-level circuit inte
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1.5 GPS 17X SERIES 1.5.1 GPS 17x HVS The GPS 17x HVS interfaces to a RS-232 serial port of a computer via a DB-9 connector and receives power through a vehicle power adapter. The GPS 17x is RS-422 compatible. See the wiring diagrams for correct wiring. ® The GPS 17x HVS can cause an issue with Microsoft ® Windows operating systems if the DB9 connector is plugged into the computer before the computer is fully running. The Windows operating system may interpret the serial connector on t
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1.6.3 GPS Performance 1.6.3.1 Receiver ® WAAS Enabled GPS receiver continuously tracks and uses multiple satellites to compute and update your position. 1.6.3.2 Acquisition Times • Reacquisition: Less than 2 seconds • Hot: Approx. 1 second (all data known) • Warm: Approx. 38 seconds (initial position, time, and almanac known; ephemeris unknown) • Cold: Approx. 45 seconds 1.6.3.3 Update Rate • 1 record per second 1.6.3.4 Accuracy • GPS Standard Positioning Service (SPS) Position: <
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2 GPSX 17X HVS WIRING AND PINOUTS The GPS 17x HVS interfaces to a serial port. The unit accepts TIA-232-F (RS-232) level inputs and transmits voltage levels from ground 3.3 V, TIA-422 (RS-422) polarity. 2.1 GPS 17X HVS PINOUT GPS 17x HVS Color Signal Name Wire Gauge Pin # 1 White Receive Data A 22 2 Black Ground 22 3 Red VIN 22 4 Orange Accessory On 22 5 White/Red Transmit Data B 22 6 Gray Transmit Data A 22 7 White/Orange Receive Data B 22 8 Violet Pulse Per Second (PPS) 22 Table
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Figure 2. PDA Serial Port Interconnection Figure 3a. GPS 17x NMEA 0183 HVS Wired for Two-Way Communication Exceptions: If your NMEA 0183-compliant device has only one receiving wire (Rx), connect it to the gray wire (Tx/A) from the GPS 17x antenna, and leave the white/red wire (Tx/B) from the antenna unconnected. If your NMEA 0183-compliant device has only one transmitting wire (Tx), connect it to the white wire (Rx/A) from the GPS 17x antenna, and connect the white/orange wire (
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Figure 3b. GPS 17x NMEA 0183 HVS Power/Data Cable 3 MECHANICAL CHARACTERISTICS & MOUNTING The following drawing shows an example for mounting hardware in case you wish to design your own custom mount. Figure 4a shows the dimensions of the bottom of the GPS 17x HVS. Figure 4. GPS 17x HVS Bottom Case Dimensions 190-00885-07 GPS 17x HVS Technical Specifications Rev. A Page 8
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4 GPS 17X HVS SOFTWARE INTERFACE The interface protocol design of the GPS 17x HVS is based on the National Marine Electronics Association’s NMEA 0183 ASCII interface specification. This standard is fully defined in NMEA 0183, Version 2.30. You can obtain a copy of the latest specification from NMEA, www.nmea.org. In addition to the standard NMEA 0183 sentences, the GPS 17x HVS may also be configured to transmit information over their serial interface using NMEA 0183 compliant Garmin propr
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4.1.2 Sensor Initialization Information (PGRMI) The PGRMI sentence provides information used to initialize the GPS sensor’s set position and time used for satellite acquisition. Receipt of this sentence by the GPS sensor causes the software to restart the satellite acquisition process. If there are no errors in the sentence, it will be echoed upon receipt. If an error is detected, the echoed PGRMI sentence will contain the current default values. Current PGRMI defaults (with the exception of
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4.1.4 Additional Sensor Configuration Information (PGRMC1) The PGRMC1 sentence provides additional information used to configure the GPS sensor operation. Configuration parameters are stored in non-volatile memory and retained between power cycles. The GPS sensor will echo this sentence upon its receipt if no errors are detected. If an error is detected, the echoed PGRMC1 sentence will contain the current default values. Current default values can also be obtained by sending the sentence “$P
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4.2 TRANSMITTED NMEA 0183 SENTENCES The subsequent paragraphs define the sentences that can be transmitted by the GPS 17x HVS. 4.2.1 Sentence Transmission Rate Sentences are transmitted with respect to the user selected baud rate. The GPS sensor will transmit each sentence (except where noted in particular transmitted sentence descriptions) at a periodic rate based on the user selected baud rate and user selected output sentences. The GPS sensor will transmit the selected sentences contigu
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4.2.2 Transmitted Time The GPS sensor outputs Coordinated Universal Time (UTC) date and time of day in the transmitted sentences. Before the initial position fix, the on-board clock provides the date and time of day. After the initial position fix, the date and time of day are calculated using GPS satellite information and are synchronized with the measurement pulse output. The GPS sensor uses information obtained from the GPS satellites to add or delete UTC leap seconds and correct the tr
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4.2.4 Global Positioning System Fix Data (GPGGA) $GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,M,<10>,M,<11>,<12>*hh <1> UTC time of position fix, hhmmss format for GPS 17x HVS <2> Latitude, ddmm.mmmm format for GPS 17x HVS (leading zeros will be transmitted) <3> Latitude hemisphere, N or S <4> Longitude, dddmm.mmmm format for GPS 17x HVS (leading zeros will be transmitted) <5> Longitude hemisphere, E or W <6> GPS quality indication, 0 = fix not available, 1 = Non-differential GPS
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4.2.7 Recommended Minimum Specific GPS/TRANSIT Data (GPRMC) $GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>*hh <1> UTC time of position fix, hhmmss format for GPS 17x HVS <2> Status, A = Valid position, V = NAV receiver warning <3> Latitude, ddmm.mmmm format for GPS 17x HVS (leading zeros must be transmitted) <4> Latitude hemisphere, N or S <5> Longitude, dddmm.mmmm format for GPS 17x HVS leading zeros must be transmitted) <6> Longitude hemisphere, E or W <7> Speed over
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<10> Mode, M = Manual, A = Automatic <11> Fix type, 0 = no fix, 1 = 2D fix, 2 = 3D fix <12> Speed over ground, 0 to 1851 kilometers/hour <13> Course over ground, 0 to 359 degrees, true <14> Position dilution of precision, 0 to 9 (rounded to nearest integer value) <15> Time dilution of precision, 0 to 9 (rounded to nearest integer value) 4.2.12 Map Datum (PGRMM) The Garmin Proprietary sentence PGRMM gives the name of the map datum currently in use by the GPS sensor. This information is us
