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AE–1800 Instruction Manual l

Theory of Operation

8. Summarized T h e or y of Operat ion

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Figure 8-5 LCD Backlight Control Circuit – Main PCB

Summary of Contents for AE-1800

Page 1: ...AE 1800 Instruction Manual UM AE1800 1 0 First Edition January 2008 ALDEN NAVTEX RECEIVER MODEL AE 1800 INSTRUCTION MANUAL...

Page 2: ...Improper or inadequate maintenance by the user Unauthorized service including modification realignment of the receiver antenna User supplied software or interfacing Operation outside the environmental...

Page 3: ...wn expense 2 PURPOSE OF THIS MANUAL The purpose of this manual is to help the user operate and maintain the equipment The information provided is not to be considered as a contractual specification 3...

Page 4: ...RATING THE EQUIPMENT OUTSIDE THE SPECIFICATIONS DESCRIBED IN THIS MANUAL IS NOT COVERED BY THE MANUFACTURER S OR DEALER S WARRANTY CONTACT YOUR DEALER FOR WARRANTY CONDITIONS 3 LIABILITY OPERATION NEI...

Page 5: ...sage will then be erased from memory automatically after reception of a next new message As soon as you notice the above warning be sure to acknowledge each unread message by pressing and if necessary...

Page 6: ...2 Protecting Procedure 3 5 3 8 3 Removing Protection Tag 3 6 4 Customizing Operation via Menu System 4 1 4 1 Introduction 4 1 4 2 Accessing the Menu System 4 1 4 3 Selecting Screen Background Colors...

Page 7: ...s 4 23 4 13 Performing Self Diagnostic Tests 4 26 4 13 1 Introduction 4 26 4 13 2 Activating Self Diagnostic Test Function 4 26 4 13 3 Checking Test Results 4 27 4 14 Turning on off Message Alarms 4 2...

Page 8: ...2 Controlling Receiver Operation via INS RS 422 Port 7 17 7 4 3 Checking Current Settings via INS RS 422 Port 7 18 7 4 4 Alarm Output Sentence Formats 7 19 7 4 5 Alarm Acknowledgement 7 20 7 4 6 Propr...

Page 9: ...The two receivers can be switched by pressing or by means of a software command from an IBS INS terminal via the rear panel RS 422 connector INS port See paragraph 7 4 for details Message No and Tota...

Page 10: ...sidered as a sign of receiver malfunction ACQUIRING The receiver is currently in the process of locking onto the start of the current message transmission LOCKED The receiver has locked onto current N...

Page 11: ...nsmission regardless of rejection settings and will be displayed and stored in memory Alarm Tag IIALARM III This tag represents a visual alarm and is turned on when a NAVTEX message of one of the foll...

Page 12: ...een until it is acknowledged by pressing or by means of a 1software command through an INS IBS terminal interfaced to the rear panel RS 422 connector or another new type D message is received 1 See pa...

Page 13: ...ection settings are made so that a particular message type is rejected from storage this indication will not be displayed regardless of a CER being smaller than 33 See paragraph 4 9 for the related se...

Page 14: ...eiver page by pressing Figure 1 4 Indication of New Message Reception on Second Receiver Example Indicating Successful Storage of New Message When a new NAVTEX message has been received with a charact...

Page 15: ...age Example This key turns the unit on off A first keypress turns it on displaying an opening message like the example at right for approximately five seconds Figure 2 3 Power Off Countdown Window Kee...

Page 16: ...ompletely switched off level The last used level will be stored in memory When the equipment is switched off with the level at its minimum the keypad will be lit at the highest level at next power up...

Page 17: ...he key silences the audible alarm for all warnings at a time A new type D message received on either the first receiver or second receiver will remain fixed on screen and will not automatically scroll...

Page 18: ...Key When a NAVTEX message is being displayed pressing this key displays the newest message e g 200 200 When a menu is being displayed pressing this key completes the selection of a desired option exe...

Page 19: ...or a particular message type can be rejected from display or storage via the menu system Detailed instructions are given in paragraph 4 8 SYSTEM MENU 4 MAKE SEL REJ SETTING 1 2 3 1 2 To turn off the a...

Page 20: ...elect the currently rejected RJ setting on each device press See paragraph 4 8 for details Figure 2 6 Selecting Stations Example continued on next page Station C is currently rejected from display and...

Page 21: ...ard direction Be sure to press after highlighting the desired option New Message Key 1 2 When a new NAVTEX message has been received and stored a NEW MESSAGE tag is automatically attached to the messa...

Page 22: ...l the next new message onto the screen It can also be displayed by pressing for line by line viewing or for message by message viewing If no additional new message is left in memory further keypress w...

Page 23: ...ssage types are always selected they cannot be rejected due to the relevant 3IMO resolutions and 4IEC regulations related to navigational safety Type A Navigational Warning Type B Meteorological Warni...

Page 24: ...to RJ For instance when ME is set to the RJ status any messages from that station will not be displayed or stored While other menu is being displayed pressing this key produces three quick beeps to i...

Page 25: ...O DATA and RS 422 ports 5 SEARCH FOR STORED MESSAGES Search stored messages by station and or message type 6 SELECT OUTPUT MESSAGES Selects messages to be output externally 7 SET OUTPUT PORTS Sets ou...

Page 26: ...he following caution message in the message prompt line screen s bottom line The message storage capacity will increase by 50 to 250 messages when 50 received messages in each receiver are protected C...

Page 27: ...ndow To turn the unit off press and hold down for two to three seconds until a power shutdown countdown window shows up as illustrated at right indicating that a power off sequence has just started Ke...

Page 28: ...er if the minimum level was used last time it will return to the maximum level on next power up 3 5 Switching First and Second Receivers The message display initially shows first receiver page showing...

Page 29: ...urther keypress displays the top line of the newest message e g 13 13 Message by message scrolling Pressing once scrolls the text by one message timewise forward to show a next newer message as in the...

Page 30: ...message is received on either receiver NOTE Each alarm can be acknowledged and reset individually with the appropriate software command via the RS 422 port See paragraph 7 4 5 for details If addition...

Page 31: ...display the message you wish to save If two or more messages are being shown the ID of that message should be brought to the top message line as in the example at right Figure 3 11 Protecting a Specif...

Page 32: ...lowing steps 1 Using and or display the message from which you wish to remove the tag 2 Press This will cause the following caution window to pop up asking you to confirm your action 3 Press or to hig...

Page 33: ...rning to Previous Menu or Directly to Message Screen Menu options can be selected by pressing followed by continued on next page SYSTEM MENU 1 MAKE DISPLAY SETTINGS 2 SELECT 2ND RECEIVER FREQUENCIES 3...

Page 34: ...TTINGS by pressing and then 2 Select 2 SELECT MESSAGE FONT TYPES in the same manner 3 Highlight 2 NORMAL with again and then press 4 Press or to return to the text screen SYSTEM MENU 1 MAKE DISPLAY SE...

Page 35: ...same manner The following options are now selectable 1 STANDARD 1 minute to reduced level 1 15 minutes to reduced level 2 2 USER DEFINED MODE times to reduced levels 1 and 2 are selectable in 1 minute...

Page 36: ...ding Canada France Portugal and U K are currently broadcasting national language messages on this channel catering mainly for local users The NAVTEX service on 4209 5 kHz is primarily intended for use...

Page 37: ...given below 1 Highlight option 2 OFF by pressing followed by 2 Press or to return to the previous NAVTEX text screen The above setting will be remembered until the system is reset SYSTEM MENU 1 MAKE D...

Page 38: ...ATA port I O DATA outputs the same message output as the printer port 4 8 2 Setting Procedure To reject a specific station execute the following step by step instructions 1 Highlight option 4 MAKE SEL...

Page 39: ...tation whose NAVTEX messages you wish to display and store in memory to output to the printer port or to output to the INS port 5 With highlight the status indication SL or RJ of the target device ME...

Page 40: ...t other messages types from being stored or from being output to the ports follow the procedure outlined below NOTES 1 Message types A Navigational warning B Meteorological warning D SAR piracy and ar...

Page 41: ...irst and Second Receivers Step 1 Destination Devices ME memory PR printer port RS 232C IN INS port RS 422 Status SL selected RJ rejected continued on next page SYSTEM MENU 1 MAKE DISPLAY SETTINGS 2 SE...

Page 42: ...J SL settings for other message types Do not press after setting the status with 7 Press to close all menus to return to the previous text message screen 2 MESSAGES MEmory PRinter INs ME PR IN A NAVIG...

Page 43: ...wild card represents all message types 4 Using select the desired message type If you wish to specify all message types from the station selected at step 2 highlight 5 Press This allows all messages...

Page 44: ...ssages selected by specifying receiver 4 MSG SELECTED BY STATION Messages selected by specifying transmitter 5 MSG SELECTED BY TYPE Messages selected by specifying message type 6 DISPLAYED MSG All mes...

Page 45: ...d receiver as illustrated below Figure 4 18 Outputting Live NAVTEX Message 3 Using select the desired receiver and then press The equipment will then start outputting live messages from the receiver s...

Page 46: ...will then be output one by one Figure 4 19 Outputting All Stored Messages The following window will pop up to indicate the outputting action in progress The window will be turned off automatically upo...

Page 47: ...Z Outputs first receiver messages 2 SECOND RECEIVER Outputs second receiver messages Figure 4 20 Outputting Stored Messages of First Receiver Example 2 Highlight the desired option and then press The...

Page 48: ...in the example illustrated below Figure 4 21 Outputting Stored Messages Received from Station D Example 2 Using highlight the desired ID and then press The following window will pop up to indicate th...

Page 49: ...ample illustrated below Figure 4 22 Outputting Stored Messages of Message Type D Example 2 Using highlight the desired message type and then press The following window will pop up to indicate the outp...

Page 50: ...layed messages or to cancel the function The previous message screen will return automatically upon completion of the output KB53 020310 UTC JUL 07 IMPORTANT WARNING FOR KUSHIRO NAVTEX AREA STATIONARY...

Page 51: ...hlight the ID of the desired message as in the example above and then press To cancel the function press instead of KB53 020310 UTC JUL 07 IMPORTANT WARNING FOR KUSHIRO NAVTEX AREA STATIONARY FRONT FR...

Page 52: ...port 3 SET BIT FORMAT RATE Sets correct bit format and data rate 4 12 2 Enabling Disabling I O Ports 4 12 2 1 RS 232C Port The RS 232C port is mainly intended as a printer interface and is initially...

Page 53: ...I O DATA Port The I O DATA port is also initially enabled so that the message types selected in paragraphs 4 11 2 through 4 11 8 will be output via this port If for any reason you wish to disable it...

Page 54: ...is turns on another submenu for selection of the protocols as illustrated below Figure 4 29 Accessing Submenu for Selection of Protocols for I O DATA Port 2 To change the protocol for the I O DATA por...

Page 55: ...ata Bits 8 bits Stop Bits 1 bit Parity None Bit Rate 110 baud The current parameter values can be checked by selecting 1 RS 232C as shown at right NOTES 1 If an optional PR 900 printer is plugged into...

Page 56: ...text page 4 12 4 3 Selecting Parameters for RS 422 Port The parameters for the RS 422 port are initially set as follows Figure 4 34 Checking Current Parameters for RS 422 Data Bits 8 bits Stop Bits 1...

Page 57: ...y selecting 3 I O DATA on the SET BIT FORMAT RATE submenu as shown below Figure 4 35 Checking Current Parameters for I O DATA Port Each parameter value can be changed using and in the same man ner as...

Page 58: ...nostic Test Function 1 Allow the equipment to warm up for at least 30 minutes before activating the test function if the unit was switched off before the test 2 Press to open the system menu highlight...

Page 59: ...n if the unit was tested shortly after power up COMPLETE Test is completed for test items 4 and 5 The user should check whether the tested hardware component functioned correctly 1 Result of Audible A...

Page 60: ...below Figure 4 38 Initial Alarm Status 3 Highlight the desired message type with and then highlight status indication ON by pressing as in the example below Figure 4 39 Enabling Alarm for Type B Mess...

Page 61: ...nd then return you automatically to the first receiver text page Attention to NAVTEX Printer Users If you are using an optional PR 900 printer or other serial printer plugged into the RS 232C connecto...

Page 62: ...owing description of the symptoms assumes that the equipment was working correctly for some time after its initial installation Symptom Suggested Solution The equipment cannot be turned on 1 Check if...

Page 63: ...nce of RCVNG MSG No NAVTEX messages can be displayed regardless of the correct display and storage selection SL settings for all desired messages or transmitters or regardless of the RCVNG MSG status...

Page 64: ...n and of appropriate message type and station selection settings 1 Check if the antenna cable is correctly plugged into the rear panel BNC connector receptacle 2 Check if the BNC plug is properly inst...

Page 65: ...be received at any time on the first or the second receiver with a good replacement antenna plugged in and the results of the self diagnostic tests are FAILED for both receivers 30 minute warm up per...

Page 66: ...neer to check the related wiring harnesses to from the receiver PCB or replace the PCB 3 Check if you have recently installed an electronic device near the receiver cabinet receiver or near the antenn...

Page 67: ...ce the PCB if necessary 5 6 Uncontrollable Screen Brightness The following description of the symptom assumes that your NAVTEX receiver was properly working for some time after initial installation ti...

Page 68: ...wing description of the symptom assumes that your NAVTEX receiver was properly working for some time after initial installation time Symptom Suggested Solution No audible or visual alarm indication is...

Page 69: ...ring harness terminations 5 11 No External Outputs The following description of the symptom assumes that your NAVTEX receiver was properly working for some time after initial installation time Symptom...

Page 70: ...ications protocol of your application matches that of the RS 422 INS port See paragraph 4 12 2 2 for details 3 Check the bit format and baud rate of your application match those of the RS 422 port par...

Page 71: ...lic filter on the LCD screen should be a maintenance routine to avoid using a high brightness level To clean the screen filter use a piece of slightly wet cloth If stains persist the cloth may be mois...

Page 72: ...while checking for any sign of damage Check to be sure that the housing is securely screwed onto the pole if installed on a marine mount or the mounting hardware is properly secured to the mast if use...

Page 73: ...ther Parts Available As Replacements Part Name Part Number Quantity Fuse 3A 5 2X20mm 10 Plugs Coaxial Cable Plug Antenna Plug BNC 58 U 2 Power Cable Plug 14 P3F 1 1I O DATA Plug CP111 8P 1 2 RS 422 23...

Page 74: ...from other onboard electronics especially those emitting pulsed signals such as echo sounders and radars 7 1 2 Mounting the Receiver Cabinet The receiver cabinet is primarily designed to be mounted o...

Page 75: ...the plastic bag that contains the power cable fuses plugs etc and prevents the cabinet from leaning forward or backward with the clamping knobs tightened After tilting the cabinet to a desired viewin...

Page 76: ...IER IN THE CYLINDRICAL HOUSING 7 2 2 Precautions for Cabling To minimize the effect of interference from other onboard electronics the coaxial cable from the antenna unit should not be run close to an...

Page 77: ...ght thread standard marine pole To prevent possible loosening apply a suitable locking compound over the threads before screwing the socket over the pole WARNING DO NOT USE A WRENCH PLIERS OR SIMILAR...

Page 78: ...low shows the rear view of the equipment Overall connections are illustrated in Figure 7 4 A summary description of the necessary connections to each component is given in the next paragraphs CAUTIONS...

Page 79: ...AE 1800 Instruction Manual Installation 7 3 1 Introduction continued 2 2 Figure 7 4 Overall Connections...

Page 80: ...s earth ground 1Nominal input voltage The equipment operates safely over the 11 to 40V range CAUTIONS 1 The DC power cable specified for use with the F 2000 F 3000W or DEBEG 4620 DEBEG 4630 cannot be...

Page 81: ...Plug the ANT 2000M three frequency active antenna into this connector receptacle Mating Plug BNC 58 U or equivalent WARNING THE CENTER CONDUCTOR OF THE BNC RECEPTACLE IS AT 8V 12V WHEN THE EQUIPMENT I...

Page 82: ...Voltage 2V min Input Low Voltage 0 8V max Input Current signal lines A B 1 0 mA 12V 0 8 mA 7V Receiver Input Impedance 12 k 2 Pins 1 2 3 and 4 No internal connections NC 3 Input lines pins 6 and 7 are...

Page 83: ...AE 1800 Instruction Manual Installation 7 3 2 Connector Pin Assignments and Connections continued 4 8 RS 422 Transceiver Data Sheet 1 3...

Page 84: ...AE 1800 Instruction Manual Installation 7 3 2 Connector Pin Assignments and Connections continued 5 8 RS 422 Transceiver Data Sheet 2 3...

Page 85: ...AE 1800 Instruction Manual Installation 7 3 2 Connector Pin Assignments and Connections continued 6 8 RS 422 Transceiver Data Sheet 3 3...

Page 86: ...applications Connections to PR 900 The connections from the RS 232C port to the PR 900 serial printer are illustrated below A 2 meter cable terminated in appropriate mating plugs at both ends is norm...

Page 87: ...tor The ALARM output connector provides an open close make break switch simultaneously via two pairs of replay contacts electrically isolated from each other and from the equipment circuitry when the...

Page 88: ...VTEX message in incorrect format Message body first line of message text characters A forced carriage return on screen will be replaced with an underscore _ hex 5F when it is output See NOTE 2 for inf...

Page 89: ...l characters 426 with no corrupt characters as follows CRNRX 011 001 15 IB45 2 426 0 A IB45 0D 0A260909 UTC MAR 07 0D 0AWWJP83 02 CRNRX 011 002 15 RJTD 260600 0D 0AVITAL WARNING FOR YOKOHAMA NAVTEX 03...

Page 90: ...currently selected is specified the command will be ignored Transmitter ID mask in hex 32 bits in total LSB station A bit 1 station B bit 25 station Z bits 26 to 32 reserved To select a station its c...

Page 91: ...sentences will then be sent back to the INS device like the examples below CRNRM 1 1 03FFFFFF 02200EBF 32 Settings for 490 kHz to non volatile memory CRNRM 2 1 03FFFFFF 02200EBF 31 Settings for 490 k...

Page 92: ...message 003 SAR piracy armed robbery information type D message 004 Receiver malfunction 005 Self diagnostic test failure 006 General failure Alarm conditions A threshold exceeded i e alarm condition...

Page 93: ...ng 002 Meteorological warning 003 Search and rescue SAR information Checksum If the device identifier is IN INS device for example the above command format for each alarm is as follows INACK 001 53 CR...

Page 94: ...double the daytime coverage by being reflected a number of times between the surface and the ionosphere a band of ionized atmospheric layers 50 to 400 km above the surface The 490 kHz service area is...

Page 95: ...ly erased from memory 60 hours after the time of reception on a first in first out basis However up to 25 messages can be protected against automatic erasure and are stored in a separate area of the n...

Page 96: ...reject interference adjacent to each frequency A 4209 5 kHz signal goes through its devoted bandpass filter L3 L6 After being amplified by RF amplifier Q5 it is fed to a diode mixer D3 D4 which conve...

Page 97: ...ol functions and text scrolling The input output interface between the CPU and externally connected devices consists of three external ports U4 for the RS 232C and I O DATA ports U12 for the RS 422 po...

Page 98: ...AE 1800 Instruction Manual l Theory of Operation 8 Summarized Theory of Operation continued 5 10 Figure 8 1 Interconnections continued on next page...

Page 99: ...AE 1800 Instruction Manual l Theory of Operation 8 Summarized Theory of Operation continued 6 10 Figure 8 2 Functional Block Diagram Receiver Board...

Page 100: ...AE 1800 Instruction Manual l Theory of Operation 8 Summarized Theory of Operation continued 7 10 Figure 8 3 CPU Circuit Main Board...

Page 101: ...AE 1800 Instruction Manual l Theory of Operation 8 Summarized Theory of Operation continued 8 10 Figure 8 4 Power Supply Circuit Main Board...

Page 102: ...AE 1800 Instruction Manual l Theory of Operation 8 Summarized Theory of Operation continued 9 10 Figure 8 5 LCD Backlight Control Circuit Main PCB...

Page 103: ...AE 1800 Instruction Manual l Theory of Operation 8 Summarized Theory of Operation continued 10 10 Figure 8 6 Keypad Board...

Page 104: ...than the following value for message reception with character error rate CER of less than 4 1 V e m f to coaxial input 9 Demodulator Quadrature detector crystal controlled 10 Mode of Reception F1B wi...

Page 105: ...ency Maximum characters message More than 8000 If the equipment receives a message with a character error rate CER of 4 and 33 it will store the message but will receive the same message to be transmi...

Page 106: ...pin connector I O DATA port Alarm Activation Output 2 isolated pairs of relay contacts ALARM port Control Commands IEC 61162 1 formatted sentences Up to 10 commands can be stacked for sequential execu...

Page 107: ...27 Compliance Standards IMO Resolution MSC 148 77 IMO Resolution A 694 17 IEC 61097 6 Ed 2 IEC 60945 Ed 4 2002 IEC 61162 1 IEC 61162 2 ITU R 540 2 ITU R 625 3 EN 300 065V 1 1 3 EN 301 011V 1 1 1 1 Th...

Page 108: ...ional Alarms Storage Limit Alarm Enabled Disabled Status Enabled at all times Triggering Condition To be triggered at time of trying to protect NAVTEX messages for permanent storage in excess of 50 Us...

Page 109: ...g System V PC operating system for IBM compatibles DRAM Dynamic Random Access Memory EMC Electromagnetic Compatibility EN Europ ische Norm European Standards ENT Entry key F Frequency FEC Forward Erro...

Page 110: ...VNG Receiving RCVR Receiver REC Recommendation ITU Recommendation REF Reference REJ Reject rejected REV Revision software revision number RH Relative Humidity RJ Reject rejected ROM Read Only Memory e...

Page 111: ...ations Rejected Stations None Output to Printer Port RS 232C and I O DATA port Selected Stations A to Z all stations Rejected Stations None Output to INS Port RS 422 Selected Stations A to Z all stati...

Page 112: ...e A Message ON OFF Type B Message ON OFF Type D Message ON Type L Message ON OFF 1 Can be controlled via RS 422 port with IEC 61162 1 proprietary command Last setting is stored in memory 2 Can be cont...

Page 113: ...nsole Cabinet AE 1800 Standard 1 set Active Antenna Assembly ANT 2000M Standard 1 set Preamplifier with 1 10m coax cable terminated in BNC plug Whip 1 2m Receiver Mounting Bracket Standard 1 pc Cabine...

Page 114: ...AE 1800 Instruction Manual MORCOM INTERNATIONAL INC 3656 Centerview Drive Unit 1 Chantilly VA 20151 U S A 1st Edition January 2008 UM AE1800 1 0 Printed in Japan...

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