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Page 38

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.
The LCD display backlight will come on and the NAV-7 start-up screen will be shown.

If the antenna fault icon appears along the top of the display, switch off immediately
and check for a short circuit at the antenna, the TNC connector or any other RF
connections in-between. If the fault persists then please follow the trouble shooting
guide in this manual.

Passive antenna installation

The NAV-7 regulated 12 V DC 100 mA output should be disabled for passive antenna
installations or for installations using a matching transformer.

NOTE: This should be done the first time that power is applied to the NAV-7
BEFORE the antenna is connected

.

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.
The LCD display backlight will come on and the NAV-7 start-up screen will be shown.

If the antenna fault icon appears along the top of the display, switch off immediately
and check for a short circuit at the antenna, the TNC connector or any other RF
connections in-between. If the fault persists then please follow the trouble shooting
guide in this manual.

WARNING

Take care not to apply power to the antenna TNC connector

from an external supply

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Содержание NAV-7

Страница 1: ...MDSS TRI GMDSS TRI CHANNEL CHANNEL CHANNEL CHANNEL NAVTEX RECEIVER NAVTEX RECEIVER NAVTEX RECEIVER NAVTEX RECEIVER USER INSTALLATION MANUAL USER INSTALLATION MANUAL USER INSTALLATION MANUAL USER INSTALLATION MANUAL mcmurdo mcmurdo mcmurdo mcmurdo ...

Страница 2: ... ...

Страница 3: ...e to the best of our knowledge correct at the time of going to print We reserve the right to change specifications equipment installation and maintenance instructions without notice as part of our policy of continuous product development and improvement No part of this publication may be reproduced stored in a retrieval system or transmitted in any form electronic or otherwise without permission i...

Страница 4: ...STEM 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 END OF LIFE STATEMENT 48 DECLARATION OF CONFORMITY 49 PRODUCT WARRANTY 50 ...

Страница 5: ... the controls of the vessel may be obstructed b it may obstruct normal movement around the vessel c it may cause bodily injury CAUTION Unauthorised opening of the NAV 7 unit or antenna units will invalidate the warranty CAUTION NAVTEX is for use as an aid to navigation and should not lead to a reduction in the level of good seamanship required at all times CAUTION Reception of NAVTEX messages cann...

Страница 6: ... The NAV 7 has been designed to meet the requirements of IMO Intentional Maritime Organisation MSC 148 77 and IEC technical standard 61097 6 Ed 2 0 The NAV 7 has three separate receiver channels one each tuned to 490 kHz 518 kHz and 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 c...

Страница 7: ... Information and weather forecasts and is suitable for use by all classes of commercial vessels and large pleasure craft It will display and store NAVTEX messages without manual intervention within designated areas of NAVTEX service coverage If the vessel is located within the coverage area of several NAVTEX stations particularly at night the NAV 7 may overwhelm you with information It can therefo...

Страница 8: ...V 7 has been designed to be easy to use with an intuitive user interface and softkeys Main display area Scroll bar Softkeys Indicator LED Tracker pad Enter key Backlight key Softkey labels UTC if available Status icons Position if available ...

Страница 9: ...ing The 4209 5 kHz receiver is receiving The external receiver is receiving OPERATION Switch on the NAV 7 by applying power via a circuit breaker or switched 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 The NAV 7 start up screen will now be shown This screen disappears after 30 seconds...

Страница 10: ...pup can be removed without reading the message by pressing the Right key As each new message is received the NAV 7 may also generate a single short beep to attract attention to the new message This audible alert can be disabled on the Setup mode System options page if it is not required Any messages that are not read immediately will be marked with the unread message symbol in both the Index and S...

Страница 11: ...cted 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 sentence from another connected device Search and rescue messages category D cannot be read later the popup box can only be cleared by pressing the Enter key and reading the message Finding and viewing NAVTEX messages The NAV 7 displays NAVTEX...

Страница 12: ...ed message select next newer message Go to next group see text go to previous group see text select previous older message scroll display up select next newer message select previous older message scroll display down view first lines of each message newest message selected message oldest message Message index display Message summary display Full message display ...

Страница 13: ...essing messages which are older than the selected time frame A message can be shown in full by selecting it and pushing the View softkey Full message display Because messages are automatically erased 72 hours after they are received it is necessary to take action to retain an important message beyond this time Displaying the message and pressing the Lock softkey causes the message to be retained i...

Страница 14: ...ccess recent messages quickly the Show softkey can be used to show only NAVTEX messages that have been received in the selected time period last 4 hours last 12 hours etc SETUP MODE To enter Setup mode press and hold the ENTER key for 3 seconds All of the user editable setup parameters are stored in non volatile memory and will be unchanged after a power cycle unless otherwise stated in the descri...

Страница 15: ... 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 only those messages that are required will be visible Messages are selected for display by the NAV 7 s software comparing the Station and Message Category information encoded into the message identifier eg KA in the diagram above with the filter settings e...

Страница 16: ...cal forecasts GREEN F Pilot service messages MAGENTA G AIS DECCA messages BROWN H LORAN messages BROWN I Not currently used BROWN J SATNAV messages GPS GLONASS BROWN K Other electronic navaid system messages BROWN L Navigational warnings additional CYAN M to U Not currently used BROWN V Notice to fishermen US only BROWN W Environmental US only BROWN X Y Not currently used BROWN Z No message on han...

Страница 17: ...a specific station identity eg K scroll down until the selection panel for K is displayed then select the appropriate check box Deselecting the first message category labelled will toggle the state of all Message Categories from the selected Station Message categories A B D and L cannot be individually controlled If all message categories for a station are deselected then categories A B D and L wi...

Страница 18: ...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 a passive antenna is connected Overload excessive current see Troubleshooting guide Error see Troubleshooting guide Signal strength The size of the bar indicates the highest signal strength being currently received by ...

Страница 19: ...blems and or as a check that your NAV 7 is working correctly Receive icon Signal strength bar Monitor window Comments OFF No new chars being received No current NAVTEX transmission OFF No new chars being received Local in band interference present or NAVTEX station transmitting un modulated RF Set monitor source to 518 kHz Correct operation NAVTEX data will be shown in monitor window Setup mode Sy...

Страница 20: ...s setting does not affect the operation of the integral alarm relay or the generation of alarm sentences Message popup Allows message popups to be disabled or confined to SAR messages only Full font size Offers three choices of message font size in Full Message view NMEA checksums Controls if incoming NMEA sentences require checksums for compatibility with older equipment Screen timeout This setti...

Страница 21: ...ing a slow printer Printer width Specifies the number of characters to output on each line when printing messages This must be at least 40 characters Printer mode Selects between On receipt printing where the NAV 7 prints all messages as they are received and On demand printing where the NAV 7 only prints selected messages when requested by the user Monitor source Selects serial interface for moni...

Страница 22: ...90 kHz receiver 2 for the 518 kHz receiver and 3 for the 4209 5 kHz receiver Serial interfaces The NAV 7 has two IEC 61162 2 compatible serial interfaces which can be used to connect the NAV 7 to other equipment such as an integrated bridge system or a PC running charting software The IEC 61162 2 serial interfaces also allow for the connection of a serial printer The integrated bridge system shoul...

Страница 23: ...ns and message categories To print individual messages only on demand Set the Printer mode setting to On demand While viewing the full text of a message press the Print Message softkey Note that this will always print the current message irrespective of the settings of the message filters To print all messages from specified locations or specified message categories only on demand Set the Printer ...

Страница 24: ...y mode page will be displayed Use the left and right and keys to adjust the LCD contrast Use the up and down and keys to adjust the LCD brightness To change the night mode settings briefly press the illumination key The LCD LCD LCD LCD setup night mode setup night mode setup night mode setup night mode page will be displayed Note These settings are non volatile and will be unchanged after a power ...

Страница 25: ...Page 25 INSTALLATION NAV 7 system overview For simplicity power is shown diagrammatically throughout fuses circuit breakers alternative supplies etc are omitted ...

Страница 26: ...tal surface Drilling drawing mm Select hole size to suit method of fixing mountings clear or tapped holes Rear view of trunnion bracket assembly Ensure that rubber washers are fitted between the trunnion bracket and the plastic enclosure Tilt the display to the correct viewing angle Tighten the two thumbwheels Mounted dimensions Height 150 mm Width 270 mm Depth 120 mm over connectors ...

Страница 27: ...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 position where sea spray can reach it or where it may be exposed to direct sunlight ...

Страница 28: ...tion System External printer Note 1 Connecting a UTC time reference eg a GPS receiver is highly recommended Ship s earth connection The earth terminal on the rear of the NAV 7 display must be connected to ship s ground by the earth cable supplied The earth connection should be kept as short as possible 12V or 24 V DC power connection A connection must be made to a 12 or 24 V DC supply via a circui...

Страница 29: ...d National authorities and classification societies may have their own power supply requirements these should also be considered 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...

Страница 30: ...ice should provide a termination 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 at both ends may cause ground loops and interference to the signals The cable screen should ...

Страница 31: ...WHITE GREEN I P from IBS port 14 15 Connecting to the NMEA 0183 interface If a connection to NMEA 0183 compatible equipment is required then a suitable cable has to be purchased or manufactured Recommended NMEA 0183 cable Two twisted pairs screened PVC sheathed For lengths to 200 meters use 0 22 mm 2 7 32 Belden 8102 or equivalent The connections to the D Sub 9 pin socket on the NAV 7 are given be...

Страница 32: ... OFF Alarm relay NC contact closed LED ON Alarm relay NO contact closed Recommended Remote Klaxon alarm unit loud bridge repeater alarm McMurdo part 40 187 Recommended cable for connection of alarm relay One twisted pair shielded PVC sheathed The required cable dimension is dependent on the current necessary to activate the alarm indicator Built in alarm relay ratings Alarm relay absolute maximum ...

Страница 33: ...ominal at all times Connecting a Printer 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 DPU 414 pin 5 Gnd to NAV 7 pin 2 TxB TNC RF connector 1 8 Spade terminal ground pin 9 way D type NM...

Страница 34: ...es transmissions on three frequencies 518 kHz transmissions are in 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 If you have purchased the NAV 7 receiver without an antenna then a suitable active NAVTEX antenna should...

Страница 35: ...clamping brackets to the antenna mounting adapter and use the clamping arrangement to fix to a suitable vertical tube 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 run...

Страница 36: ...ide the rubber boot over the PL259 connector if desired it may be filled with silicone grease for a better weatherproof seal Screw the antenna down into the antenna mounting adapter Ensure that the mounting adapter is connected to ground If necessary connect a grounding wire 2 5 mm2 minimum to a suitable ground point Typical installation of active antenna ...

Страница 37: ...tor Assemble the connector and tighten the gland nut Push the rubber boot securely over the gland nut Extending the antenna coax cable If required the coaxial cable may be extended with 50 ohm coaxial cable and connectors The maximum cable length should not exceed 100 m Ensure that any cable joints are well secured and waterproofed using self amalgamating rubber tape Cable should be RG 58 RG 67 RG...

Страница 38: ... disabled for passive antenna installations or for installations using a matching transformer NOTE This should be done the first time that power is applied to the NAV 7 BEFORE the antenna is connected 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 whic...

Страница 39: ...onal 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 Power supply wiring 110 V AC 1 6 A 110 V AC 2 x 1 5 mm 2 230 V AC 0 8 A 230 V AC 2 x 0 7 mm 2 24 V DC 7 0 A 24 V DC 2 x 6 0 mm 2 ...

Страница 40: ...te thermal roll printer sold directly by Seiko agents N A External Power Supply Unit AC DC auto changeover to reserve power 110 220 V AC input 89 029 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 NAVTEX messages from the external receiver app...

Страница 41: ... categories have not been deselected in the NAV 7 setup menu Antenna fault icon appears at the top of the display active antenna 1 Turn off the NAV 7 2 Disconnect the active antenna and check that there is not a short across the antenna s TNC connector 3 Turn on the NAV 7 apply a 120 ohm 5 W resistor across the TNC connector If there is 12 V DC across the TNC then either the antenna or coax cable ...

Страница 42: ...ng NAVTEX reception Testing a 905 05 tri channel active antenna active antenna 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...

Страница 43: ...NRQ NMK ACK ALR for NAVTEX functions Printer port RS422 NMEA 0183 Serial 9 way D type Interface Conforms to IEC 61162 1 8 data 1 stop no parity Baud rates 4800 38400 115200 Supports ZDA for date time Supports NRX NRQ NMK ACK ALR for NAVTEX functions USB Serial Interface Type A connector USB 1 1 device interface unused Antenna connector TNC connector 50 ohms 12 V DC 100 mA for active antennas auto ...

Страница 44: ...5 Chile Valparaiso 32 48 S 71 29 W 300 C 01 Russia Murmansk 68 58 N 33 05 E 140 C 03 Ukraine Odessa 46 29 N 30 44 E 280 C 04 Canada Riviere au Renard 50 11 N 66 07 W 300 C 07 South Africa Cape Town 33 41 S 18 43 E 500 C 08 Mauritius Mauritius 20 10 S 57 28 E 400 C 11 Singapore Singapore 1 20 N 103 42 E 400 C 12 USA San Francisco 37 55 N 122 42 W 350 C 13 Russia Petropavlosk 53 00 N 158 40 E 280 C ...

Страница 45: ...ma 35 22 N 139 36 E 400 I 11 Philipines Porto Princesa 9 44 N 121 03 E 320 I 15 Chile Valparaiso 32 48 S 71 29 W 300 J 01 Sweden Gislovshammer 55 29 N 14 19 E 300 J 03 Bulgaria Varna 43 04 N 27 46 E 350 J 11 Japan Otaru 43 12 N 141 00 E 400 J 11 Philipines Manila 14 35 N 121 03 E 320 J 12 Alaska Kodiak 57 46 N 152 34 W 200 J 15 Chile Talcahuano 36 42 S 73 06 W 300 K 01 England Niton Northern Franc...

Страница 46: ... 02 Cape Verde Ribiera de Vinha 16 51 N 25 00 W 250 U 03 Italy Trieste 45 41 N 13 46 E 320 U 04 Canada Fundy 45 14 N 65 59 W 300 U 11 Malaysia Penang 5 25 N 100 24 E 350 U 16 Peru Calleo 12 03 S 77 09 W 200 V 01 Norway Vardo 70 22 N 31 06 E 450 V 09 Egypt Kosseir 26 06 N 34 17 E 350 V 11 Mariana Islands Guam 13 29 N 144 50 E 100 V 11 South Korea Chukpyon 37 03 N 129 26 E 200 W 01 Ireland Valentia ...

Страница 47: ...44 N 68 33 W French T 01 England Niton 50 35 N 01 18 W French U 01 England Cullercoats 55 02 N 01 26 W English U 03 Ukraine Kerch 45 23 N 36 28 E English V 03 Algeria Alger Radio 36 40 N 03 18 E English V 04 Canada Fundy 43 45 N 66 10 W French V 11 Taiwan Lintou 23 33 N 119 38 E Chinese X 03 Ukraine Odessa 46 29 N 30 44 E English X 11 Taiwan Yenliaoken 23 54 N 121 36 E Chinese 4209 5 kHz NAVTEX st...

Страница 48: ...40 23 40 X 03 50 07 50 11 50 15 50 19 50 23 50 END OF LIFE STATEMENT The Waste Electrical and Electronic Equipment WEEE Directive aims to minimise any adverse impact of electronic equipment on the environment both during the product lifetime and when it becomes waste Within the European Union this legislation is mandated by Directive 2002 96 EC and there is similar legislation in most other contin...

Страница 49: ...Page 49 DECLARATION OF CONFORMITY ...

Страница 50: ... liable for any breach of warranty or other claim in an amount exceeding the purchase price of the product This warranty does not affect any statutory rights of the consumer In order to be valid claims must be made under the above warranty in writing as soon as practicable after discovery of the defect or failure and within the warranty period referred to above Proof of purchase will be required T...

Страница 51: ...Page 51 ...

Страница 52: ...urdo 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 ...

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