mcmurdo NAV-7 User & Installation Manual

Gmdss tri-channel navtex receiver

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Page 1 NAV- - - - 7 7 7 7 GMDSS TRI GMDSS TRI- - - - CHANNEL CHANNEL GMDSS TRI GMDSS TRI CHANNEL CHANNEL NAVTEX RECEIVER NAVTEX RECEIVER NAVTEX RECEIVER NAVTEX RECEIVER USER & INSTALLATION MANUAL USER & INSTALLATION MANUAL USER &...
Page 3 © © © © 2008 McMurdo Part No : 35-821 Applicability of this manual This manual applies to NAV-7 equipment software Issue 4 released March 2008. Disclaimer McMurdo is a brand name operated by Signature Industries Limited. The information and illustrations contained in this publication are to the best of our knowledge correct at the time of going to print.
Page 4: Table Of Contents
NAV-7 CONTROLS..................8 OPERATION.....................9 Receiving NAVTEX messages ................10 SETUP MODE ....................14 SYSTEM ALARMS..................22 ADJUSTING THE DISPLAY ................24 INSTALLATION....................25 NAV-7 system overview ..................25 Electrical Connections ..................28 ANTENNA INSTALLATION................34 OPTIONAL POWER SUPPLY UNIT 89-029 ..........39 OPTIONS......................40 EXTERNAL RECEIVER .................40 MAINTENANCE GUIDE.................40 TROUBLESHOOTING GUIDE...............41 NAVTEX STATIONS LIST ................44...
Page 5: Safety Notices
WARNING: Do not connect the NAV-7 main unit directly to a AC electrical supply, as an electric shock or fire hazard could result. WARNING: Do not connect the NAV-7 system to a DC supply exceeding 31 V or reverse the supply polarity.
Page 6: About Nav-7
4209.5 kHz. The NAV-7 will receive on all three frequencies simultaneously in those parts of the world where transmissions are available (refer to Appendix 1). The NAV-7 can be set up to filter out stations and/or message categories that are not required by the User.
Page 7: Introduction
Normally, routine NAVTEX messages are repeated at four hourly intervals. Provided that the NAV-7 is left running, repeated messages are not displayed more than once. Each message is retained for three days (72 hours) after its last reception before being automatically deleted, unless the message has been marked as locked.
Page 8: Operation
OPERATION NAV-7 CONTROLS The NAV-7 has been designed to be easy to use with an intuitive user interface and softkeys. Backlight key Softkey labels UTC (if available) Status icons Position (if available) Main display area Scroll bar Softkeys Indicator LED...
Page 9: Operation
Display Icons The NAV-7 displays various icons in the status bar at the top of the display. SAR, warning alarm Unread message indicator The antenna or antenna cable is faulty The 518 kHz receiver is receiving The 490 kHz receiver is receiving The 4209.5 kHz receiver is receiving...
Page 10: Receiving Navtex Messages
The NAV-7 is now ready to receive NAVTEX messages. Receiving NAVTEX messages When the NAV-7 begins to receive a signal, one or more of the receiver icons at the top of the screen will appear to indicate which of the receivers is active.
Page 11 'D' (search and rescue), 'A' and 'L' (navigational warnings) and 'E', 'B' and 'C' (meteorological warnings). When a message with any of these message categories is received the NAV-7 operates its alarm relay contacts and transmits an NMEA "ALR" sentence to the currently selected alarm port. The alarm relay continues to operate until the alarm is acknowledged either by removing the popup or by reception of an appropriate NMEA "ACK"...
Page 12 Message displays view first lines of each message select another message group move cursor to newest message required message selected message select time frame oldest message for messages Message index display view selected message select next (newer) message Go to next group (see text) go to previous group (see text)
Page 13 Minimising the number of messages displayed After the NAV-7 has been switched on for a while there will be a large number of NAVTEX messages stored in memory. These can be quite overwhelming if the user is looking for particular message categories or an individual message.
Page 14: Setup Mode
Note that message pop-ups do not appear while in Setup mode to ensure they do not interrupt the editing of a configuration field. Always exit from Setup mode when you have finished configuring the NAV-7 and return to normal mode before leaving the NAV-7 unattended.
Page 15 In the Message Index display only the message identifier is visible. It is recommended that the User or Installer takes time to set up the NAV-7 to filter out those stations and message categories that are not required. In this way the display is kept uncluttered;...
Page 16 Colour coding of NAVTEX message headers The NAVTEX message information bars are colour coded for each type of message as defined in the table below. Message category Colour Navigational warnings CYAN Meteorological warnings GREEN Ice reports GREEN Search and rescue information and pirate warnings Meteorological forecasts GREEN Pilot service messages...
Page 17 This page can be used to indicate that messages from specified Transmitting Stations or of specified Message Categories should NOT be displayed, stored or output as required. Each receiver has its own separate set of message filters; pressing the Select XXXX kHz RECEIVER softkey cycles round the available receivers.
Page 18 Setup parameter Comment Antenna power Enabled for active antenna or Disabled for passive antenna or Auto sense allows the NAV-7 to detect the antenna type Antenna status Unknown: see Troubleshooting guide Active: an active antenna is connected Passive:...
Page 19 If the Monitor source is set to this frequency then the received data will appear in the Monitor window. Use the Receive icon, Signal strength bar and Monitor window to help diagnose installation problems and/or as a check that your NAV-7 is working correctly. Receive Signal strength...
Page 20 Date installations where there is no source of ZDA sentences LED function Selects whether the LED on the front of the NAV-7 is used to indicate a new message or an active alarm Key click Allows key click sound to be disabled...
Page 21 Setup mode: Serial options The Setup mode: Serial options page contains setup and configuration parameters for the two serial ports on the NAV-7 unit. The lower section of the display provides a monitoring facility for incoming messages on the selected port.
Page 22: System Alarms
When the ‘Printer mode’ setting on the Setup mode : Serial options page is set to ‘On Receipt’, the NAV-7 outputs every message to the printer as it is received, subject to the control of the message filters. In this mode, the NAV-7 operates in a similar manner to a traditional ‘paper-based’...
Page 23 Ensure all the ‘PRINT’ checkboxes for all stations and message categories on the message filters page for each receiver are not checked To print all stored messages from a specified receiver: Ensure all the ‘PRINT’ checkboxes for all stations and message categories on the message filters page for each receiver are not checked Press the ‘Print Messages’...
Page 24: Adjusting The Display
ADJUSTING THE DISPLAY LCD setup day & night modes To enter LCD setup mode, press and hold the illumination key for 3 seconds the setup: Day mode setup: Day mode setup: Day mode setup: Day mode page will be displayed. Use the left and right ( ) keys to adjust the LCD contrast.
Page 25: Installation
INSTALLATION NAV-7 system overview For simplicity, power is shown diagrammatically throughout; fuses, circuit breakers, alternative supplies, etc are omitted. Page 25...
Page 26 Trunnion mounting the display The standard bulkhead mounting U-Bracket can be used to mount the NAV-7 above or below a horizontal (or near horizontal) surface. Hole size to fit #10 screw: 3.5mm Drilling drawing (mm) Select hole size to suit method of fixing mountings –...
Page 27 Flush mounting the display If the NAV-7 is to be mounted through a flat panel, use the flush mounting kit provided. A cutting template is supplied with the flush mounting kit. This template carries full fitting instructions. Warning: Do not mount the NAV-7 in a...
Page 28: Electrical Connections
NMEA data in detail. For proper installation and connection of peripheral equipment refer to the installation manuals for these products. The table below shows the connections that must be made to the NAV-7 for it to function correctly. Connection...
Page 29: Safety Warning
Signal cable connections As shown in the table above, the NAV-7 may be connected to different types of peripheral units including IBS & INS serial ports and printers. The signal connections are all connected via a serial RS422 type interface; data rates are selectable at 4800, 38400 or 115200 baud.
Page 30 Since the NAV-7 contains internal termination, it MUST be at the end of the line and NOT in the middle. It is good practice to use screened cables in all ship cable installations. Take care to connect the cable screen to ship’s ground at one end only of the cable, as connecting...
Page 31 0.22 mm (7/32); Belden 8102 or equivalent. The connections to the D-Sub 9-pin socket on the NAV-7 are given below. Note that the cable screen should not be connected to any part of the NAV-7. NMEA 0183 & printer port...
Page 32 (for example) to switch (change state) on receipt of a Search and Rescue message or for a system fault. The red LED on the front panel of the NAV-7 mirrors the function of the alarm relay. Red LED function LED OFF...
Page 33 The recommended external printer option is the Seiko DPU-414; the default printer parameters are set correctly for this model. The printer should be connected to the NMEA port of the NAV-7 (the 9-way D-type socket at the rear): DPU-414 pin 3 (RxD) to NAV-7 pin 7 (TxA)
Page 34: Antenna Installation
International English; 490 kHz and 4209.5 kHz transmissions may be in a local language. To receive on all frequencies the NAV-7 must be used with a wide frequency (400 kHz to 5 MHz) antenna that covers 518 kHz, 490 kHz and 4209.5 kHz.
Page 35 Important NAVTEX antennas must be mounted clear of obstructions and at least 0.5 metres away from other antennas. Where practical avoid locating the NAVTEX antenna close to MF / HF transmitting antennas or VHF / AIS antennas. Ensure that antennas cannot be snagged by mooring warps or running rigging or engulfed by green water.
Page 36 Typical installation of active antenna Thread the PL259 connector end of the coax cable through the antenna mounting adapter and secure the connector to the antenna 1" threaded adapter. Slide the rubber boot over the PL259 connector; if desired, it may be filled with silicone grease for a better weatherproof seal.
Page 37 RF types (TNC, BNC, etc). Testing the tri-channel active antenna installation By default the NAV-7 provides a regulated 12 V DC (nom) 100 mA output to provide power for an active antenna such as the one supplied as part of a NAV-7 System.
Page 38 Take care not to apply power to the antenna TNC connector from an external supply Switch on the NAV-7 by applying power (12 V DC or 24 V DC) via a circuit breaker or fuse. There will be a few seconds delay whilst the software loads the contents of the NAVTEX message store during which time the front panel red LED will blink.
Page 39: Optional Power Supply Unit 89-029
Consult the installation instructions packed with the power supply. An additional ground wire may be connected between the green safety earth wire on the NAV-7 and the ground terminal on the NAVTEX Power Supply Unit. Dimensions and drilling plan Technical specification...
Page 40: Options
Supply Unit 110 / 220 V AC input EXTERNAL RECEIVER The NAV-7 has the capability to receive from an external receiver (not supplied) on an additional NAVTEX frequency should such an additional frequency be mandated by the IMO in the future.
Page 41: Troubleshooting Guide
CAUTION: Avoid using chemical solvents to clean the system as some solvents can damage the case material. NOTE: The NAV-7 contains no user serviceable parts. Contact your Service Agent for repair advice or contact the McMurdo Customer Service team. TROUBLESHOOTING GUIDE...
Page 42 If it is suspected that reception is being compromised by the antenna performance, the antenna should be checked for electrical damage. Disconnect the antenna from the NAV-7 by unscrewing the TNC connector at the back of the NAV-7. Using a DVM set on resistance, measure across the TNC RF connector from the centre pin to the outer ferrule, looking back up towards the antenna.
Page 43: Specifications
Fused internally 1.8 A resettable type Supports ZDA for date / time Supports NRX, NRQ, NMK, ACK, ALR for NAVTEX functions 9 way D-type Printer port RS422 McMurdo reserves the right to change specifications without notice. (NMEA 0183) Serial Page 43...
Page 44: Navtex Stations List
NAVTEX STATIONS LIST 518 kHz NAVTEX stations Area Country Name Latitude Longitude Range (NM) Svalbard Svalbard 78°04’ N 13°38’ E France Corsen 48°28’ N 5°03’ W Russia Novorossiysk 44°36’ N 37°58’ E Miami 25°30’ N 80°23’ W Iran Bushehr 28°58’ N 50°50’...
Page 45 Area Country Name Latitude Longitude Range (NM) Russia Arkhangelsk 64°33’ N 40°32’ E Azores Horta 38°32’ N 28°38’ W Turkey Antalya 36°53’ N 30°42’ E Boston 41°43’ N 70°31’ W Uruguay La Paloma 34°40’ S 54°09’ W Iran Bandar Abbas 27°08’...
Page 46 Area Country Name Latitude Longitude Range (NM) China Fuzhou 26°02’ N 119°18’ E Hawaiian Islands Honolulu 21°22’ N 158°09’ W Netherlands Scheveningen 52°06’ N 4°15’ E Israel Haifa 32°49’ N 35°00’ E Canada Thunder Bay 48°26’ N 89°13’ W Argentina Bahia Blanca 38°43’...
Page 47 Area Country Name Latitude Longitude Language Turkey Antalya 36°53’ N 30°42’ E Turkish Canada Rivière-au-Renard 50°11’ N 66°06’ W French Argentina Bahia Blanca 38°43’ S 62°06’ W Spanish France Corsen 48°28’ N 05°03’ E French Argentina Mar del Plata 38°03’ S 57°32’...
Page 48: End Of Life Statement
For example, do not simply discard the product in the domestic waste. Instead take it to a civil recycling facility, or contact McMurdo for advice. Page 48...
Page 49: Declaration Of Conformity
DECLARATION OF CONFORMITY Page 49...
Page 50: Product Warranty
McMurdo's sole discretion to refund to the buyer the price of the product (or a proportional part of the price). McMurdo shall not be liable to a buyer who is not a consumer for any other loss or damage (whether indirect, special or consequential loss of profit or otherwise) costs, expenses or other claims for compensation which arise out of or in connection with this product.
Page 51 Page 51...
Page 52 McMurdo A Division of Signature Industries Ltd Silver Point Airport Service Road Portsmouth PO3 5PB United Kingdom Tel: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www mcmurdo.co.uk Email: sales@mcmurdo.co.uk 35-821 Iss. 3 Page 52...

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