Summary of Contents for Navico MX421
- Page 1 MX421 MX421 High P High P recision GPS Sensor recision GPS Sensor MX421 MX421 High P MX421 High P High P recision GPS Sensor recision GPS Sensor recision GPS Sensor Installation Manual...
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- Page 3 Smart Antenna Sensors INSTALLATION MANUAL MPORTANT NOTICE!! THE MX421 GPS/DGPS SENSOR IS AN AID TO NAVIGATION ONLY. UNDER NO CIRCUMSTANCES SHOULD IT BE USED IN LIEU OF AUTHORIZED GOV- ERNMENT CHARTS. ITS ACCURACY CAN BE AFFECTED BY MANY FACTORS SUCH AS EQUIPMENT DEFECTS, ENVIRONMENTAL CONDITIONS, OR IM- PROPER OPERATION.
- Page 4 NAVICO, Inc. 2008 NAVICO reserves the right to make changes to its products and specifications without notice.
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Page 5: How To Contact Us
Should you need to contact us directly for new sales, upgrades, repair service, or technical support, we can be reached at: International: MX Marine (USA) A Division of NAVICO, Inc. 23868 Hawthorne Blvd., Suite 201 Torrance, California 90505 +1-310-791-8213 Telephone (International) - Page 6 NOTES...
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Page 7: Table Of Contents
Table of Contents Introduction..................1 MX421 Operation ................2 Antenna Connector ................3 Supplied Equipment ...............4 MX421 Mounting Guidelines ............5 Installation Procedure ..............6 Antenna Mounting ................6 Power Requirement ...............8 Antenna Cable Assembly ...............8 MX421-10 Connector Configuration ..........10 MX421B-10 Connector Configuration .......... 11 Data Interface to MX420/2 or MK12 CDU ........12 Data Interface to MX420/8 or MX420/AIS CDU ......13... -
Page 8: Introduction
This manual describes the operation and installation of the MX421 high-precision smart antenna. The MX421 GPS and DGPS smart antennas were designed to work with the latest MX Marine Control and Display Units (MX CDU) or other NMEA 0183 compatible navigation devices. -
Page 9: Mx421 Operation
Receiver Autonomous Integrity Monitoring (RAIM) RAIM is a special software algorithm in the MX421 program which gives the opera- tor timely warnings when the GPS system accuracy is questionable. This feature requires at least five or more GPS satellites to operate properly. If the position solution error exceeds 100 meters, a “RAIM Unsafe (R-)”... -
Page 10: Antenna Connector
Antenna Connector The 10-pin black plastic connector at the bottom of the antenna housing provides the necessary interfacing between the MX421 smart antenna and the MX Marine CDU or other NMEA compatible devices. Below is a table listing the pin assign- ments and wire color codes of the MX421 antenna cable. -
Page 11: Supplied Equipment
MX421 Installation Manual Supplied Equipment he following items are supplied with the MX421 Sensor: Description Part Number MX421-10 9525 200 80100 MX421B-10 9525 200 80110 MX421 Installation Manual 723594 MX421 Sensor Standard Package... -
Page 12: Mx421 Mounting Guidelines
MX421 Installation Manual MX421 Mounting Guidelines • Install the MX421 antenna where it has a clear view of the sky around it. • Locate the antenna for easy access and maintenance. • Locate the antenna at least 10 meters away from and out of the transmit- ting beam of radar, INMARSAT and other high-power transmitters. -
Page 13: Installation Procedure
Antenna Mounting Bracket Mount The MX421 mounting thread is an industry standard fitting for VHF antenna mount- ing (1 inch, 14 TPI) . This enables the antenna to be mounted on a wide range of mounting brackets, including the swivel joints, commonly used for angled surface. - Page 14 MX421 Installation Manual is suitable, it is advisable to mount the antenna temporarily and verify proper opera- tion. Move it around until you are satisfied with the results. Refer to Figure below for surface mounting considerations. Cut a 5 1/4” diameter hole on a horizontal mounting surface and drill the four mounting screw holes as shown.
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Page 15: Power Requirement
MX421 Installation Manual Power Requirement External power supplied to the MX421 must be within 10.5-32 VDC for best operation. To protect the circuitry in the antenna, the voltage level must be within these limits. Negative grounding is required. The MX421B-10 draws about 230 mA. at 12 VDC. - Page 16 Beacon Status Out +* Yellow Beacon Status Out Green GPS Out + Orange GPS Out - Brown MPM In+ Blue MPM In- +12~32 VDC Black Negative GND. Not available in MX421-10 model 10-Pin Female Connector/s ( two connector cable) Length Antenna Cable Assemblies...
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Page 17: Mx421-10 Connector Configuration
Differential corrections from an external beacon receiver can be connected to the MX421-10 (GPS only) model. Connections are done directly to the yellow (Pin 7) and white (Pin 8) wires of the MX421-10 I/O cable. It will accept standard RTCM SC-104 signal at 4800 baud. -
Page 18: Mx421B-10 Connector Configuration
MX421 Installation Manual MX421B-10 Connector Configuration The MX421B-10 antenna configuration is a combination GPS and beacon receiver in one. The built-in differential receiver operates in auto-search mode in the MX421B- 10. It enhances the accuracy of the GPS receiver to provide a more accurate position solution. -
Page 19: Data Interface To Mx420/2 Or Mk12 Cdu
MX421 Installation Manual Data Interface to MX420/2 or MK12 CDU Use the diagram below to interface the MX421-10 to a MX Marine MX420/2 or the MK12 CDU. MX421-10 MX421B-10 (16) Red/Wht Red (+12 VDC) MX420/2 or (1) Shield Blk/Shield (GND) -
Page 20: Data Interface To Mx420/8 Or Mx420/Ais Cdu
Terminal Strip (User Supplied) 12~32 VDC Supply (4) Brn White (Beacon Status Out +) (5) Brn/Wht Yellow (Beacon Status Out -) Purple (1 PPS +) (17) Gray (18) Gray/Blk Purple/Gray (1 PPS -) MX421-10 Interface to MX420/8 or MX420/AIS CDUs... -
Page 21: Data Interface To Mx500/510/512 Cdu
MX421 Installation Manual Data Interface to MX500/510/512 CDU Use the diagram below to interface the MX421 to an MX500, MX510 or MX512 CDU. Antenna cable assembly with two 10-Pin connectors are available in 3, 20 and 40 meter lengths. MX 5xx CDU... -
Page 22: Data Interface To Pc Or Non-Mx Marine Navigation Systems
Pin 4 (Brown) LPM In (+) Pin 3 (Blue) LPM In (-) Terminal Strip DB9 Connector (Female) Data Out 2 Amp Data In Fuse Common GND To Navigation MX421 Interface to a PC chartplotter or Other Non-MX Marine Navigation Systems... -
Page 23: Specifications
MX421 Installation Manual Specifications GPS Receiver Type: L1, C/A Code (SPS), 12-channel continuous Tracking. Frequency: 1575.42 MHz (L1 band) Receiver sensitivity: -143 dBm Costas threshold Update rate: 1 Hz (5 Hz Optional) DGPS Input: RTCM SC-104 format Receiver maximum input signal:... - Page 24 MX421 Installation Manual Beacon Receiver (For MX421B model) Frequency: 283.5 to 325.0 kHz. 2-channel Auto or Manual selection (500 Hz steps) Minimum Signal: 15 uV/m Station Selection: Automatic or Manual on two indepen- dent receiver channels Dynamic Range: 90 dB...
- Page 25 MX421 Installation Manual 7 1/8” (182 mm) 1 in.- 14 TPI Mount MX Marine reserves the right to make changes in its products and specifications without notice.
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Page 26: Data Output Protocol
MX421 Installation Manual Data Output Protocol The MX421 GPS and DGPS have been configured in the factory to output the following NMEA data sentences: GGA, DTM, GSA, GSV, GST, VTG, RMC, ZDA NMEA 0183 Data Output Sentences (1) GGA - Global Positioning System Fix Data Time, position and fix related data for a GPS receiver. - Page 27 MX421 Installation Manual 2 ------ Mode: 1 = Fix not available, 2 = 2D, 3 = 3D 3-14 -- PRN numbers of satellites used in solution (null for unused fields) 15 ---- PDOP 16 ---- HDOP 17 -----VDOP (3) GSV - GPS Satellite in View Number of satellites (SV) in view, PRN numbers, elevation, azimuth and SNR values.
- Page 28 MX421 Installation Manual 7 ---- Speed over ground, knots 8 ------ Course Over Ground, True 9 ------ Date: dd/mm/yy 10,11 - Magnetic variation, degrees E/W. Easterly variation (E) subtracts from True course, Westerly variation (W) adds to True course. (6) GST - GNSS Pseudorange Error Statistics This message is used to support Receiver Autonomous Integrity Monitoring (RAIM).
- Page 29 All of your comments and suggestions become the property of MX Marine. Please send them to: MX Marine A Division of NAVICO, Inc. 23868 Hawthorne Blvd., Suite 201 Torrance, CA 90505 United States of America or write your comments on the Reader Comment Sheet on the next page and mail it to us.
- Page 30 MX421 Installation Manual...
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Page 31: Reader Comment Sheet
MX421 Installation Manual Reader Comment Sheet Installation Manual P/N 723594 MX Marine welcomes your evaluation of this manual. Please note errors, suggest additions, or make general comments below. Use extra pages if you like. All com- ments and suggestions become the property of MX Marine. - Page 32 MX421 Installation Manual Place Stamp Here MX Marine A Division of NAVICO, Inc. 23868 Hawthorne Blvd., Suite 201 Torrance, CA 90505-5908 ------------------------------------------------------------------------------...
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Page 33: Product Warranty And Limitation Of Liability
Warranty PRODUCT WARRANTY AND LIMITATION OF LIABILITY This product is warranteed by MX Marine (the “Seller”) to original purchaser (the “buyer”) for use only to be free of all defects in material and workmanship for a period of twelve (12) months from date of purchase by Buyer. If during the warranty period, this product or parts thereof (“Product”) are found to be defective in material or workmanship, Seller shall repair or replace the defective Product, at the discretion of the Seller. - Page 34 Warranty...
- Page 35 A Division of NAVICO, Inc. 23868 Hawthorne Blvd., Suite 201 Torrance, CA 90505 Phone +1 310 791 8213 Fax +1 310 791 6108 www.mx-marine.com...
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