Garmin GPS 18x LVC Technical Specifications

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Summary of GPS 18x LVC

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    Gps 18x technical specifications garmin international, inc. 1200 e. 151 st street olathe, ks 66062 usa 190-00879-08, revision b january 2008.

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    190-00879-08 gps 18x technical specifications rev. B page i © 2008 garmin ltd. Or its subsidiaries garmin international, inc. 1200 east 151 st 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, southamp...

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    190-00879-08 gps 18x technical specifications rev. B page ii table of contents 1 introduction.............................................................................................................................. 1 1.1 cautions.....................................................................

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    190-00879-08 gps 18x technical specifications rev. B page iii 4.2.8 track made good and ground speed (vtg) ................................................................................................. 18 4.2.9 geographic position (gll)................................................................

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    190-00879-08 gps 18x technical specifications rev. B page 1 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 18x is a precision electronic navigation aid (navaid), any...

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    190-00879-08 gps 18x technical specifications rev. B page 2 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...

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    190-00879-08 gps 18x technical specifications rev. B page 3 1.3 overview the gps 18x series products include an embedded receiver and an antenna. Based on the proven technology found in other garmin gps receivers, the gps 18x tracks multiple satellites at a time while providing fast time-to-first-fi...

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    1.5 gps 18x series there are several different versions of gps 18x available. Refer below for a list of the three major divisions of the gps 18x series. 1.5.1 gps 18x usb the gps 18x usb interfaces to a computer with an available usb port. Drivers are available for use on windows computers. Macintos...

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    190-00879-08 gps 18x technical specifications rev. B page 5 1.6 technical specifications specifications are subject to change without notice. 1.6.1 physical characteristics 1.6.1.1 size 61 mm (2.4 inches) in diameter and 19.5 mm (0.77 inches) in height 1.6.1.2 weight • gps 18x usb: 3.7 oz (105 g) • ...

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    190-00879-08 gps 18x technical specifications rev. B page 6 1.6.2.5 environmental characteristics • operating temperature: -30°c to +80°c (-22°f to +176°f) • storage temperature: -40°c to +90°c (-40°f to +194°f) 1.6.3 gps performance 1.6.3.1 receiver waas enabled ® gps receiver continuously tracks a...

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    190-00879-08 gps 18x technical specifications rev. B page 7 1.6.4.3 gps 18x pc, gps 18x lvc, & gps 18x-5hz protocols • nmea 0183 version 2.0 or nmea 0183 version 2.30 (version 2.0 is factory default, programmable by data field 7 of the pgrmc1 sentence described in section 4.1.4 additional sensor con...

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    2 gpsx 18x lvc & gps 18x -5hz wiring and pinouts the gps 18x lvc/18x-5hz interfaces to a serial port. The unit accepts tia-232-f (rs-232) level inputs and transmits voltage levels from ground to the input voltage, tia-232-f (rs-232) polarity. The gps 18x lvc/18x-5hz wires are terminated with a six-w...

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    Figure 2. Pda serial port interconnection figure 3. Basic nmea device interconnection 190-00879-08 gps 18x technical specifications rev. B page 9.

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    3 mechanical characteristics & mounting the central threaded recess accepts a metric m3 threaded bolt. The recess is approximately 4 mm deep (4.32 +/- 0.08 mm). The following drawings show example geometries for mounting hardware in case you wish to design your own custom mount. Figure 5 shows mount...

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    Units: millimeters figure 5. Gps 18x suction cup mount center hole dimensions units: millimeters figure 6. Gps 18x flush mount dimensions figure 7. Gps 18x flush mount center hole dimensions 190-00879-08 gps 18x technical specifications rev. B page 11.

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    190-00879-08 gps 18x technical specifications rev. B page 12 4 gps 18x pc, gps 18x lvc, & gps 18x-5hz software interface the interface protocol design of the gps 18x pc, lvc, and gps 18x-5hz products is based on the national marine electronics association’s nmea 0183 ascii interface specification. T...

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    190-00879-08 gps 18x technical specifications rev. B page 13 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 softwa...

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    190-00879-08 gps 18x technical specifications rev. B page 14 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 pow...

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    190-00879-08 gps 18x technical specifications rev. B page 15 4.2 transmitted nmea 0183 sentences the subsequent paragraphs define the sentences that can be transmitted by the gps 18x pc and lvc. 4.2.1 sentence transmission rate sentences are transmitted with respect to the user selected baud rate. T...

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    190-00879-08 gps 18x technical specifications rev. B page 16 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 posi...

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    190-00879-08 gps 18x technical specifications rev. B page 17 4.2.4 global positioning system fix data (gga) $gpgga,,,,,,,,,,m,,m,,*hh utc time of position fix, hhmmss format for gps 18x pc or lvc; hhmmss.S format for gps 18x-5hz latitude, ddmm.Mmmm format for gps 18x pc/lvc; ddmm.Mmmmm for gps 18x-5...

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    190-00879-08 gps 18x technical specifications rev. B page 18 4.2.7 recommended minimum specific gps/transit data (rmc) $gprmc,,,,,,,,,,,,*hh utc time of position fix, hhmmss format for gps 18x pc/lvc; hhmmss.S format for gps 18x-5hz status, a = valid position, v = nav receiver warning latitude, ddmm...

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    190-00879-08 gps 18x technical specifications rev. B page 19 4.2.11 gps fix data sentence (pgrmf) $pgrmf,,,,,,,,,,,,,,,*hh gps week number (0 to 1023) gps seconds (0 to 604799) utc date of position fix, ddmmyy format utc time of position fix, hhmmss format for gps 18x pc/lvc; hhmmss.S format for gps...

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    190-00879-08 gps 18x technical specifications rev. B page 20 4.2.15 dgps beacon information (pgrmb) note: the gps 18x products do not support pgrmb at this time. $pgrmb,,,,,,k,,,*hh no effect (this field is not used on this model and is included only for backwards compatibility) no effect (this fiel...

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    190-00879-08 gps 18x technical specifications rev. B page 21 appendix a: earth datum list the following is a list of the garmin gps 18x earth datum indices and the corresponding earth datum name (including the area of application): 0 adindan–ethiopia, mali, senegal, sudan 9 australian geodetic 1984–...

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    190-00879-08 gps 18x technical specifications rev. B page 22 44 kertau 1948–west malaysia, singapore 45 l.C. 5 astro–cayman brac island 46 liberia 1964–liberia 47 luzon–mindanao island 48 luzon–phillippines (excluding mindanao island) 49 mahe 1971–mahe island 50 marco astro–salvage islands 51 massaw...

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    190-00879-08 gps 18x technical specifications rev. B page 23 83 provisional south american 1956–bolivia, chile, colombia, ecuador, guyana, peru, venezuela 84 south american 1969–argentina, bolivia, brazil, chile, colombia, ecuador, guyana, paraguay, peru, venezuela, trinidad and tobago 85 south asia...

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    190-00879-08 gps 18x technical specifications rev. B page 24 appendix b: garmin binary output format in binary output mode, gps 18x series products will transmit packets once per second. The record contains primarily post-process information such as position and velocity information. For the gps 18x...

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    190-00879-08 gps 18x technical specifications rev. B page 25 satellite data record the satellite data has a record id of 0x72 with 84 (0x54) data bytes. The data bytes contain data for 12 satellites as described below. Typedef struct { uint8 svid; //space vehicle identification (1–32 and 33–64 for w...

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    190-00879-08 gps 18x technical specifications rev. B page 26 position record the position record has a record identifier of typedef struct { float alt; float epe; float eph; float epv; int fix; double gps_tow; double lat; double lon; float lon_vel; float lat_vel; float alt_vel; float msl_hght; int l...

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    190-00879-08 gps 18x technical specifications rev. B page 27 dle and etx bytes: sample c code to receive the two records should filter dle and etx bytes as described below: typedef enum { dat, dle, etx } rx_state_type; /* declare and initialize static variables */ static char in_que[ 256 ]; static i...

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    190-00879-08 gps 18x technical specifications rev. B page 28 appendix c: changing the baud rate in garmin mode in certain cases, you may need to change the default baud rate of your garmin gps receiver while in garmin mode. Follow these steps to temporarily change the baud rate. Refer to the garmin ...

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    Appendix d: gps 18x pc/ lvc/18x-5hz & windows serial mouse issue problem: it is possible for windows to incorrectly interpret the nmea 0183 output of the gps 18x pc as the output of a microsoft serial ballpoint mouse. When that happens, windows loads drivers for the serial ballpoint mouse. This caus...

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    4. Select the serial port to which the gps 18x is connected. Select auto to have the program automatically determine the baud rate, or select manual to manually select the baud rate of the gps 18x. Click ok when done. 5. Click the connect icon , or select comm > connect to connect to the gps 18x. 6....

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    Appendix e: sensor configuration software snsrcfg configures the gps sensors based on user-selected parameters. Some application features include the ability to download gps sensor configuration, maintain different configurations in files, and perform gps sensor configurations quickly with the use o...

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    File menu the file menu allows you to open, save, and print sensor configurations. The items in the file menu work like most windows-based programs. Comm menu the comm (communication) menu allows you to set the port number, baud rate, and then connect and disconnect from the sensor. Setup : opens th...

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    Get configuration from gps (f8): retrieves the current programming from the sensor. The programming is then displayed in the main interface window. Send configuration to gps (f9): sends the changes you have made to the programming to the sensor. Switch to nmea mode (f10): switches the unit to nmea m...