Gebruiksaanwijzing /service van het product DGPS 53 van de fabrikant Garmin
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owner’ s manual and refer ence guide DGPS 53 integrated GPS/DGPS receiver DGPS53Cover.p65 8/29/00, 11:10 AM 1.
© 2000 GARMIN Corporation GARMIN International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. T el. 913/397.8200 or 800/800.1020 Fax 913/397.8282 GARMIN (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey , SO51 9AQ, U.
1 Introduction Limited W arranty GARMIN Corporation warrants this product to be free from defects in materials and workmanship for one year from the date of pur chase. GARMIN will, at its sole option, repair or replace any components that fail in normal use.
2 Introduction Cautions All differ ential beacon receivers decode correction data determined at the beacon transmitter site via a GPS receiver(s). The GPS system is operated by the govern- ment of the United States which is solely responsible for their accuracy and maintenance.
3 Introduction T able of Contents Introduction Limited W arranty ..............................................1 Cautions ..........................................................2 T able of Contents ............................................3 Product Registration .
4 Introduction Product Registration Customer Service Product Registration Help us better support you by completing our on-line registration today! Have the serial number of your DGPS 53 handy and connect to our website ( www .gar min.com ). Look for the Product Registration link on the Home page.
5 Capabilities The DGPS 53 offers a host of powerful capabilities for enhanced performance and accuracy: • Per formance— 12-channel GPS receiver tracks and uses up to 12 satellites for fast, accurate positioning. Single channel DGPS receiver has high-sensitivity automatic and manual tuning throughout the beacon broadcast band.
6 Mounting the Receiver Please read through these instr uctions thoroughly before attempting installation. Make sur e you completely understand these instructions before you begin.
7 Installation Mounting the Receiver If a problem is found, try altering the location of the unit or wiring. Often moving the antenna a few feet away from the source of interference will solve the problem. When a suitable configuration is found, a permanent installation should be made.
8 Installation Connecting the DGPS 53 Connecting the DGPS 53 The final step in installing the DGPS 53 is to connect the receiver’ s DA T A IN, DA T A OUT , REMOTE ON/OFF and GROUND (Return) lines to your chartplotter or PC.
9 Installation Connecting the DGPS 53 DGPS 53 Power/Data Cable & DB-9 Serial Connection 7 6 1 2 4 3 5 DGPS 53 (7) YELLOW : PPS (6) GREEN: DGPS STATUS LED (5) WHITE: REMOTE ON/OFF* (1) RED: 8-35 VD.
10 Fir st T ime Fix Once the DGPS is installed and powered on, it will begin to search for satellites and a DGPS beacon signal. Initially , it may take longer than normal to scan through the DGPS beacon frequencies.
11 Operation Using the DGPS 53 The following sections describe the NMEA data format of each sentence transmitted and received by the DGPS 53. The baud rate selection and one-pulse-per- second output interfaces are also described. NMEA Received sentences This section defines the sentences which can be received by the DGPS 53.
12 Operation Using the DGPS 53 Sensor Initialization Information (PGRMI) The $PGRMI sentence provides information used to initialize the position and time used for satellite acquisition. Receipt of this sentence by the DGPS 53 causes the softwar e to restart the satellite acquisition pr ocess.
13 Using the DGPS 53 Operation All configuration changes take ef fect after receipt of a valid value except baud rate and PPS mode. Baud rate and PPS mode changes take effect on the next power cycle. Output Sentence Enable/Disable (PGRMO) The $PGRMO sentence pr ovides the ability to enable and disable specific output sentences.
14 Operation NMEA T r ansmitted Sentences This section defines the sentences which can be output by the DGPS 53. (GP ALM, GPGGA, GPGSA, GPGSV , GPRMC, GPVTG, PGRME, PGRMT , PGRMV , PGRMF , LCGLL, LCVTG) Sentence T ransmission Rate Sentences are transmitted with respect to the user selected baud rate.
15 Operation Global Positioning System Fix Data (GGA) $GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,M,<10>,M,<11>,<12>*hh<CR><LF> <1> UTC time of position fix, hhmmss format <2> Latitude, ddmm.
16 Using the DGPS 53 Operation Recommended Minimum Specific GPS/TRANSIT Data (RMC) $GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>.
17 Using the DGPS 53 Operation T rack Made Good and Ground Speed with LORAN T alker ID (LCVTG) The LCVTG sentence reports track and velocity information.
18 Using the DGPS 53 Operation $PGRMT ,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>*hh<CR><LF> <1> Product, model and software version &l.
19 Reference GPS: How It W orks GPS: How It W orks The global positioning system is a satellite-based navigation system consisting of a network of 24 orbiting satellites that are twelve thousand miles in space and in six different orbital paths.
20 DGPS: How It W orks DGPS: How It W orks Differ ential GPS (DGPS) is a technique used to improve the accuracy of the Global Positioning System. DGPS reduces the effects of ionospheric variations and can improve position accuracy typically to 1-5 meters.
21 Sources of Err or Using a DGPS Beacon Receiver with your existing GPS Receiver can provide substantial improvements in accuracy; however , there may be occasions when the best possible accuracy will not occur . Several factors can contribute to a degraded DGPS accuracy .
22 Reference Sources of Error Number of Satellites Visible — As previously stated, the number of satellites available can affect position accuracy . T o apply the corrections provided for the satellites received at the beacon transmitter station, the same satellites (at least in part) must be received by your GPS receiver .
23 Reference T roubleshooting Chart 1) Beacon signal weak or not received. Interference from ship’ s electrical system, thunderstorm activity , or another source is inhibiting signal lock on. W rong frequency or bit rate selected. 2) Accuracy not as expected Poor satellite geometry exists or too few satellites are visible.
24 Reference Physical Size: 4.6”W x 5.3”H (117mm x 135mm) W eight: 23.9 ounces (0.678 kg) Operating Range: -68°F to +158°F (-20°C to +70°C) W aterproof: -1 meter submersion for 30 minutes IPX7 rating for IEC529 Mount Thread Size: 1” diameter at 14 threads/inch Power V oltage: 8 - 35 vDC using supplied power/data cable .
25 Appendix A Earth Datums The following is a list of the GARMIN DGPS 53 earth datum indexes and the corresponding earth datum name (including the ar ea of application): 0 ADINDAN - Ethiopia, Mali, Se.
26 Appendix A Earth Datums 33 GUAM 1963 - Guam Island 34 GUX 1 ASTRO - Guadalcanal Island 35 HJORSEY 1955 - Iceland 36 HONG KONG 1963 - Hong Kong 37 INDIAN - Bangladesh, India, Nepal 38 INDIAN - Thail.
27 Appendix A Earth Datums 71 OBSER V A TORIO 1966 - Corvo and Flor es Islands (Azor es) 72 OLD EGYPTIAN - Egypt 73 OLD HA W AIIAN - Mean V alue 74 OMAN - Oman 75 PICO DE LAS NIEVES - Canary Islands 7.
28 A Antenna Mount..................................6-7 Auto-T uning........................................10 B Baud Rate........................................8, 11 Beacon Range.......................................14 Beacon Reference Card........
DGPS53Cover.p65 8/29/00, 11:10 AM 3.
© 2000 GARMIN Corporation GARMIN International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. GARMIN (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey , SO51 9AQ, U.K. GARMIN (Asia) Corporation No. 68, Jangshu 2nd Rd.
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