MT-RX-3 406 + 121.5 + AIS LOCATING RECEIVER User Manual
Contents
1. Support of additional protocols Support for different Languages Disclaimer THE RESPONSIBILITY LIES COMPLETELY ON THE USER TO ENSURE THAT THIS DEVICE IS TESTED THROUGH METHODS THAT ARE APPROPRIATE TO CONFIRM THAT ALL SYSTEM COMPONENTS THAT THIS DEVICE AND PC SOFTWARE MAY BE PART OF ARE WORKING CORRECTLY THIS DEVICE AND SOFTWARE ARE NOT INTENDED TO BE USED AS A PRIMARY LIFE SAVING TOOL BUT MAY BE USED TO STRONGLY COMPLEMENT OTHER EMERGENCY DETECTION TOOLS ONLY WHEN CORRECTLY CONFIGURED AND TESTED THE PRIMARY LIFESAVING MECHANISM FOR 406 BEACONS SHOULD ALWAYS BE CONSIDERED TO BE THE 406 SATELLITE NETWORK FOR WHICH THE 406 BEACON HAS BEEN DEVELOPED The default enclosure for this device is rated IP65 however this rating depends on mounting the unit using suitable hardware or sealants appropriate to the expected conditions of use It is the responsibility of the user to periodically inspect the unit for damage or the lifting of any seals or labels that may result in the ingress of water All reasonable care must be taken to ensure that cable glands and enclosure screws are tight to ensure a waterproof seal This document has been prepared in good faith and produced to assist in the use of this product however Micro Technologies NZ Limited reserves the right to modify add or remove features without notice Page 49 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Spec2. Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware MICRO TECHNOLOGIES NZ LIMITED MTRX 3 406 121 5 AIS LOCATING RECEIVER 12 35 19 User Manual Page 1 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Table of Contents Summary SE A A A E a laa ANG DESEOS ECOS A dle ae RN NN ASEOS A A A A A OER A O NR BIS SAR Dirt A A E ALS PROXIMITY aaa PES COIS ISTO taa ir a a R e Er E U Shhh santos GPS ANG HO Ra AS A Ad SOUNDER TIME aa DUPRETECTTAIME eee see en aan acne oR E E ROM oa System Sub NA A AND ee LANGUAGE ba WAYPOINT Ts Vices lei coca cing As WAYPOINT LEONG raneren n A E ERN VOICE REPEA T cidon a il iO A E BEARING cee h Pag ide pon a AE e A ER A a AE AE DEF POSITION sirenai A A A R E E EER DEF TATu a DEE LON oia Ida DEF HEADER O tit O A A NMEA CUT SODA A AAA AA IS CUT lio aid ot Page 2 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware TEST LAT IE 27 TESTO e de 27 AIS SUb ME A AAA A A E au 28 COLLISION da old 28 PROA dd e 28 PROX WAR NAS AAA AVR ATA 28 DISPLAY inre a id 28 RS23 ZOU Tore eae AAA ati E a E AE A E T ER 28 ESSE AA lla 29 A A A E OA 29 SQUEECHA it was eouizeaitennab a a a e aas EES 29 SQUELCH DELAY e o 29 WEE DETER Soa aden vaca E E 29 406 S lective DB Sub Men s A y a E A E Wat aan R E Na aS 30 AIS Collision AVOIR E A a e a 31 AIS SART Transmi
3. Pressing the small button in the bottom right hand side of the bottom status bar generates a test distress message for demonstration purposes and confirming that email settings are correctly configured Typical email notifications appear as Self Test Hex 15 ID C00950444197590 microted ecja box microtechnologies Self Test Hex 15 ID C00 x Y g File Edit View Go Message Tools Help amp Get Mail Write Mchat B amp Address Book Y Tag A Quid 4 Reply Forward E Archive Junk Delete From 406 Decoder lt ai gt Subject Self Test Hex 15 ID C009504A4197590 6 12 2012 8 06 p m To Me Other Actions Position 25 11 33 N 080 42 36 W Hex 15 ID C009504A4197590 Country 512 New Zealand Protocol EPIRB Maritime User Input Power 53 dBm Mode Self Test MMSI or Radio Call Sign 654321 Beacon Id 2 Auxiliary Locating Device Type None 00h 01m 05s Page 48 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware MT RX 3 Customisation The MT RX 3 has been developed by Micro Technologies NZ Limited and therefore if a specific requirement exists customisation of Micro Technologies products may be possible at additional cost Examples of possible customisation Changes to enclosure Changes to serial output to better suit specific navigation equipment Decryption of data parameters for military use
4. Waypoint longitude to use when the WAYPOINT TARGET is enabled This setting is stored with other configuration data but not actively used unless the WAYPOINT TARGET has been enabled VOICE REPEAT This setting controls how frequently the voice prompt operates that provides a bearing and distance to the selected target If the system sound is disabled then the voice prompt will not be heard Setting to 0 disables the voice repeat frequency BEARING Items RELATIVE and TRUE can be selected The relative setting will generate the Relative Bearing to Target voice prompt The bearing is expressed as 0 360 degrees relative to the current direction of travel The TRUE setting provides the True Bearing to Target voice prompt This bearing is relative to Page 24 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware true north DEF POSITION When ENABLED the MT RX 3 will use the configured default latitude longitude and heading until a externally provided GPS position has been provided This means that if the MT RX 3 is used in a fixed position such as in a building or oil rig the heading and distance to an alert can be determined without the need to connect an external GPS source DEF LAT Default Latitude for use when the default position is enabled DEF LONG Default Longitude for use when the default position is enabled DEF HEADER Default heading for use when the
5. v1 84 Firmware Serial Port Configuration Once the correct COM port has been selected and the port has been opened the status message will change from Not Connected to Connected when physically connected to the receiver When the application is started again the application will attempt to automatically connect using the last opened COM port For PCs that lack RS232 COM ports a USB to RS232 converter can be used Integrated Mapping The 406 Decoder PC application supports two modes of integrated mapping These modes are either Live where the map updates automatically when new messages are received or static by selecting any location message in the history list Many map providers can be selected such as OpenStreetMap ArcGIS Bing etc allowing map information to be switched rapidly to show information such as Satellite Imagery Topological details Street information Depending on the map provider s conditions of acceptable use some of these maps can be automatically stored on the computer by the PC application allowing rapid screen updating and map updates without an internet connection being required Live Map Updates a 5 E AI When the Live Map option is selected through the Config menu the integrated map window is opened This map window is automatically updated and displays the position of the most recent received 406 transmissions containing a vali
6. 0 5dB but are relative and not calibrated Power strength recording can be performed by using a reference beacon and comparing results against the tested or calibrated reference MT RX receivers can be mounted using the optional MT RX mounting kit The use of the stainless steel mounting kit will ensure that extra holes are not required and therefore decrease the chance of water ingress MT RX 3 with stainless steel mounting kit fitted Page 38 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Connecting to the MT RX 3 The MT RX 3 is supplied pre wired to 2M of 6 core cable into a 6 way screw terminal connector strip The MT RX 3 should not need to be opened unless advised to do so for the purposes of performing a firmware update or removal of SD card Description 12V DC GND RS232 in RS232 out RELAY common RELAY normally open The minimum required connections for a usable system 1 Connection to an aerial 2 Connection to a voltage source externally fused with a 1 A fuse Optionally the MT RX 1 may also connect to e Anexternal GPS source e A chart plotter or navigation system that can also be a GPS source APC based mapping system External sounder controlled via the on board relay Aerial Elevation As with any radio receiver raising the height of either the transmitter or receiver aerial will result in dramatic improvements
7. 40mA when backlight enabled Firmware Field upgradable SD Storage Capacity 2GB or microSD any size 406 Error Correction Correction of up to 5 bit errors per 406 packet Serial Output 406 decoded messages as MT protocol configurable Page 50 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware data rate NMEA position information and AIS sentences output as RS 232 RS 422 for direct integration with NMEA equipment support through internal optional module AIS Decode Support Both 161 975MHz and 162 025MHz Decoding of all single and double AIS sentences Alert only on type 1 SART status 14 or 15 as configured Serial output as RS232 or RS422 with optional module of all single and double sentence AIS messages Configurable AIS vessel proximity and collision alert 406 Location Protocol Support All COSPAS SARSAT C S T001 Issue 3 Rev 12 Location protocols User Location Protocol Standard Location Protocol Standard Test Location Protocol National Location Protocol National Test Location Protocol RSL Location Protocol Compliance with Standards EN 300 220 2 EN 301 489 3 EN 60950 1 satisfying the CE directives R amp TTE 1999 5 EC EMC 2004 108 EC and LVD 2006 95 EC FCC part 15 Subpart A B Testing Laboratory EMC Technologies NZ Limited Test reports 131112 1 131112 2 and 131112 3 I
8. A PLB programmed into the selective database can provide a method to disable a vessel or active a tracking device from a considerable distance from a vessel Any standard 406 beacon of any kind can be used Note Alert position is not provided by the test button press of all 406 beacons Typically 406 transmitters that support sending of location information in the test transmission require a different mode of activation such as holding the test button for 5 seconds Page 37 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Installation The MT RX 3 should be situated away from direct sunlight extreme vibration and heat sources and high power transmission sources An external aerial correctly designed to operate at 406MHz will result in best performance if 406 is of primary importance otherwise use an aerial that best suits such as 162MHz for AIS performance will be degraded at other frequencies but will still operate acceptably in most cases Do not situate the aerial immediately next to the aerial of a high power transmission source position greater than 2 M from any other aerial Mount the external aerial with as much elevation as possible for best results see Aerial Elevation below Maximum tolerated input power into the decoder BNC connector is 17dBm Connecting directly to a 406 beacon will result in certain damage Signal strength measurements are accurate to within
9. default position is enabled Page 25 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware NMEA OUT Sub Menu HMEAR OUT DISAELED TEST LAT 44 450 5 TEST LONG 174 200 E OUTPUT When ENABLED the configured NMEA output sentence will be sent out the serial port once every second only after a 406 message with a valid position has been decoded The NMEA output will be at the rate configured in the SYSTEM sub menu Typically the NMEA output should be configured to be 4800 baud which is the default rate for NMEA 0813 compatible equipment By default MT RX receivers support NMEA across RS 232 that may not be compatible with some navigation systems If full NMEA support is required then the optional RS422 module can be fitted TYPE Items WPL RMB BWC and GLL can be selected This is the NMEA sentence type that will be used when there is valid information to display The type WPL or BWC should be used when possible since these sentence types when used with the MT RX 3 allow not only the position of the alert to be displayed but also the nature of the alert in the form of a way point such as 406 SOS Activating Alert WPL and BWC Waypoint Tag Used 406 Beacon Distress Transmission 406 SOS 406 Beacon Test Transmission 406 TEST 406 Beacon Transmission in Database MOB 1 MOB 2 MOB 3 indicating entry in database NMEA Test Output TEST Page 26 of 52 Mic
10. level before an alert is raised Each time the signal drops below the SQUELCH level the SQUELCH TRIG as shown on the RSS screen is reset and the full delay period must elapse again before an alert can be triggered If under normal operation the S icon is seen frequently due to interfering signals in proximity the SQUELCH level should be increased until the S icon is no longer seen under normal operation SWEEP DETECT This item can be set to DISABLED or a value between 1 and 20 When DISABLED an alert can be raised without the need to detect a valid sweep When set to between 1 and 20 the sweep signal must be present for this period of time before an alert can be raised NOTE An RSS alert can only be raised when RSS alerts have been enabled in the ALERTS menu Page 29 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware 406 Selective DB Sub Menu CODO OOOO OOOO D This sub menu allows 406 hex 15 beacon IDS to be manually entered Entries in this menu will take no effect unless the 406 alerts option ACTIVE DB has been selected Page 30 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware AIS Collision Avoidance The collision avoidance system is a highly configurable feature that allows alerts to be raised should a collision condition arise If a vessel that is transmitting AIS data remains stationary and the MT RX is
11. to the receiver is lost either direct connection or if the receiver is being monitored remotely General Email Config Results File From 406 Decoder sender zgmail com C ProgramData MicroTechnologies 406 SD 1 res To Min RSSI Level dBm 130 Host recipient zgmail com smtp gmail com i gt lla Periodic Reset Time 0 Port 587 Test Reports gt User username zgmail com Name Y Enabled Password JOR HK Company Name Reports Folder Email Alerts Y Alerts Enabled L Comms Status C ProgramData MicroTechnologies 406 SD 1 E No Self Test Save A Emailing can be disabled completely or provide notification when communication to the unit has been lost and restored Filtering can also be configured to not send self test messages The Min RSSI Level should normally be configured to be 130dBm A low value such as 130 means that all packets of even a very low signal strength are logged and emailed Increasing the level may be preferable if there is an interest only in signals from closer beacons Obtaining a gmail account for the PC application is a simple way to send out email messages and also keep a separate record of all emails sent by the application The host and port settings shown will work well for gmail Alternatively other SMTP email hosts can be used Page 47 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Testing Email Notification
12. 0 GHz EN 60950 1 2006 Information Technology Safety The CE mark was first applied in 2073 Signed Authority Shannon Reardon Director Date 23 12 2013 Page 52 of 52
13. 2 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware 406 Beacon Transmission Logging All COSPAS SARSAT 406 messages are logged to SD card Logging is performed for all messages of the configured alert type regardless of whether they are duplicates All 406 data is stored to the file 406 DAT CSV and logged in the format 10 10 16 01 C00B19F875940D1 43 6050 172 7154 FFFEDO60058CFC3ACA068FABCF9C8F14CDBC where each entry begins with the character followed by time and date 406 Hex 15 ID position and full binary content of the transmission Target Setting The MT RX 3 when a GPS position is presented via internal or externally supplied NMEA sentence can provide a bearing and distance to a specified target When the MT RX 3 is first powered on the target is unset Viewing the DF screen direction find to target the status NO TARGET will be shown HO TARGET If the current location is unknown through the absence of a NMEA RMC sentence then determination of distance and bearing to target is not possible unless a DF default position has been configured through the menu When a distress message 406 or AIS that matches the alert configuration settings for the MT RX 3 that would result in an alert being raised is received the target and the target is currently unset the target will automatically be set to the ID of that alert even if the alert does not provide a position When
14. IS transmission that is less than the configured PROX WARN DIST will result in a short duration audible warning and screen pop up This setting will result in the relay NOT closing DISABLED No AIS proximity alerts or warnings will be generated AIS COLLISION Allows the generation of collision alerts based on the settings configured in MENU gt AIS gt COLLISION Items ENABLED and DISABLED can be selected See AIS Collision Avoidance GPS ANCHOR Sets the allowed travel distance before raising an alert Distances from 5 500 meters can be set The GPS Anchor feature is set from the GPS main screen not in the menu see GPS Anchor RSS The RSS Received Signal Strength alert when enabled will operate the relay and sounder as configured Disabling will result in no alert being raised RELAY TIME The time in seconds that the relay will close for when an alert is raised Pressing any button after an alert is raised will result in the relay opening again The relay will be able to operate again after the source of the alert has been absent for the DUP REJECT TIME SOUNDER TIME The time in seconds that the on board sounder will operate for when an alert is raised Pressing any button after an alert is raised will result in sounder operation ceasing DUP REJECT TIME The duplicate reject feature determines the period of time that must pass before an alert of the same Page 20 of 52 Micro Technologies NZ
15. Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware ID or type will raise an alert again Typically alert transmissions are sent every minute Raising a new alert that needs cancelling again every minute when tracking an alert is not typically desirable When the feature is set to a non zero value a duplicate reject timer is restarted each time the same ID is received If the transmission source was to cease for this period of time then restart a new alert would be raised When set to 0 the feature is disabled and a new alert is raised for each transmission The duplicate reject applies to AIS 406 RSS and PROXIMITY alerts Once an RSS alert has been raised the signal level must decrease below the trigger threshold for the duplicate reject time before a new RSS alert can be raised Page 21 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware System Sub Menu LANGUAGE ENGLISH EACKLIGHT OH DISAELED Riese EAUD 4300 AUTO SHUTOOWH OISAELED LANGUAGE The currently used language Currently only English and Spanish are included Please advise if you require translations for another language BACKLIGHT This is the time in seconds that the backlight stays on for after each key press The backlight may be set between values of 0 and 30 A value of 0 results in the backlight being disabled a value of 30 results in the backlight being permanently on SOUND Setting to OFF pre
16. P Rating IP65 Splash proof not to be submerged Page 51 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Manufacturer Declaration of Conformity CE Declaration of Conformity Manufacturer Micro Technologies NZ Limited Church Bay RDI Lyttelton 8971 New Zealand Declares Compliance with the Directives R amp TTE 1999 SEC EMC 2004 108 EC and LVD 2006 95 EC Product Description Micro Technologies MT RX Series Multi Band Receiver The basis on which conformity is being declared The products identified above comply with the above directives and the manufacturer has created the Technical Construction File number CE MERX TF 1213 which includes reports 1322721 1311122 and 131112 3 from the FMC Competent Body EMC Technologies NZ Lid The products identified above also comply with the principal elements of the safety objectives of the Low Voltage directive he manufacturer has applied the following harmonised standards EN 300 220 2 V2 4 1 2012 05 Electromagnetic compatibility and Radio spectrum Matters ERM Short Range Devices SRD Radio equipment to be used in the 25 1000 MHz frequency range with power levels up to 300 mW Part 2 Harmonised EN covering essential requirements under Article 3 2 of the R amp TTE Directive EN 301 489 3 V1 4 1 2002 Part 3 Specific conditions for Short Range Devices SRD operating on frequencies between 9 KHz and 4
17. T RX 3 can be configured to output this data out the RS232 connector that can then be used by PC based AIS mapping tools All AIS single and double sentence messages are decoded Variable length AIS messages are decoded up to a length of 2 sentences AIS transmissions greater than 2 sentences are rare ATS H UDM 44 21ES0607POD lt FARIL LOOFWHOLOF TOR O70 SETE 52 2000TORL 01a 1 1 2 186506807FOO0 lt FAAb The decode history sub screen provides a means to view time stamped entries and also allows the entries to be selected to used with the direction finding screen see Target Setting Only AIS SART messages are listed in the history 12 32 23 03 SHS206000 12 35 23035 S5HS20 6000 12 35 23 03 53206000 12 35 23035 5H3206000 Page 13 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware GPS Screen The GPS screen provides details of the GPS data that is provided to the MT RX 3 for direction finding If the GPS anchor feature is currently in use the distance from the anchor set location is shown see GPS Anchor The GPS raw data sub screen provides real time updates of provided GPGGA and GPRMC NMEA sentences that are used to determine the current location quality of fix and time Page 14 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware DF Screen The DF direction finding to target provides an indicatio
18. alerts can be raised for transmissions that are e Within a configured frequency of 120MHz and 470MHz e Above a configured signal strength threshold e Above a signal strength for a configured period of time or determined to contain a valid downwards sweep signal for a period of time GPS Anchor alerts can be raised when moving outside the safe anchor radius for a set location Upon reception of a configured alert message type the relay is closed for the configured period of time set via the alert menu system and the sounder operates independently for a configured period of time heard through internal speaker Sequence of events when an alert is processed 1 Relay Operates for configured period of time 2 Sounder Operates for configured period of time The display shifts to either the 406 121 or AIS decode screen as appropriate except if already on the DF direction find to target screen 4 An alert pop up to indicate a new alert is displayed if this is a new alert Page 16 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware If there is an ID and location available for the alert not applicable for 121 5 alerts 5 6 Tes The decoded alert message is logged to SD Card The ID of the alert 406 hex 15 ID or AIS MMSJ is stored The configurable duplicate reject timer is started preventing the same ID raising another alert until a period of inactivity has elapse
19. an alert is activated the ALERT pop up is shown and the active screen moves to either the top level 406 or AIS screen as appropriate Manually moving to the DF screen will show the bearing and distance to the target only if the current location is known AND the 406 or AIS transmission has provided a valid position Optionally a waypoint can be manually entered through the menu system MENU gt DF Any waypoint can be entered that will then be shown as a DF target of WAYPOINT Page 33 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware mis fl ls SH3 206000 When a new alert message is decoded the target will NOT be updated if the target has a different ID but an alert will still be raised If a new message has the same ID the location of the target will be updated To set a new target the square ENTER button must be pressed while on the top level 406 or AIS screen Using this method it is possible to browse through the file history of decoded 406 or AIS messages and set any of those messages as a new target To Set a Target To Last 406 or AIS transmission 1 Move to either the 406 or AIS screens 2 To set this entry as the target now press the ENTER button 3 The pop up TARGET SET will be displayed 4 The DF screen will now show bearing and distance to this new target To Set a Target From File 1 Move to either the 406 or AIS screens 2 P
20. anslation if required E Haa ahah AY 15D j AAH 15 D 400430480157283 BS y 512 New Zealand 20I E O59 Yay EPIRB MMSI AAEA k POO SEH MMSI or Radio Call Sign 123456 E D D 0 El SD 041 23 wE Distress and test messages can be clearly differentiated Distress messages are marked in red test Page 42 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware messages in green New incoming distress messages provide an audible alert until acknowledged When a history entry is highlighted that contains a valid position a Map button is visible that when pressed shows the location of the beacon transmission using the user selected integrated map Coma separated results are logged directly to file All information available in the history list is written to file and time stamped with the time written On application start up the results file is loaded to allow browsing of entries and viewing of historical entry beacon parameters When a beacon certificate number has been decoded the beacon model and manufacturer is displayed produced from COSPAS SARSAT registration reports The new beacon checksum is displayed introduced in July 2012 that allows a more robust beacon registration method This checksum is being adopted by some countries to ensure that the hex id is entered correctly during registration there have been many cases of registration a
21. ansmission Logging All message type 1 status 14 and 15 messages are logged to SD card Logging is performed for all messages of the configured alert type regardless of whether they are duplicates All AIS data is stored to the file AIS DAT CSV and logged in the format 16 25 00 00 548206000 43 6050 172 7154 AIVDM 1 1 2 18 kmd gt 000 lt F gt IW38j 06522000t0 4 57 where each entry begins with the character followed by time and date SART ID usually MMSI position and full legal AIS type 1 message that generated the alert GPS Anchor The GPS Anchor allows for an alert to be raised when a GPS position has been set and then the vessel drifts from that set location To use the GPS Anchor 1 In MENU gt ALERTS gt GPS ANCHOR set how far the MT RX is allowed to drift before raising an alert This setting is saved and needs only to be configured once 2 Enable the GPS Anchor This can only be performed from the GPS screen and if there is a current GPS fix available From the GPS screen press the square button Pressing the square button again will unset the GPS anchor and allow a new position to be set when the square button is pressed again The GPS ANCHOR field on the GPS screen will now display the distance in meters from the the set position and confirms that the GPS anchor feature is active Removing power to the MT RX then applying power again will result in the GPS anchor alert being cleared Page 32 of 5
22. are 406 and AIS alerts can be logged to internal memory storage and provide a time stamped history of alert location and activity The file history can be viewed on the MT RX 3 and any logged transmission can be set as a target that provides a bearing and distance to the transmission source The on board relay can be connected to external alerting devices and the internal sounder provides alerts and voice prompts for voice only guidance to selected targets The high visibility graphic display provides clear details relating to the alert and when GPS information is available provides a clear bearing and distance to the distress transmission source The patented selective database allows 406 test transmissions to be used to provide a secure locally managed rescue system for 406 PLBs A simple top level display provides at a glance a summary of the activity on all monitored distress channels over the previous several minutes Logged information can be viewed on the MT RX 3 itself and retrieved by connecting to the USB port of the MT RX 3 or by removing the SD card with care and inserting into a micro SD card reader NMEA output can be configured to allow integration with chart plotters and PC based mapping tools MT RX Receivers are also offered as a waterproof portable option allowing up to 15 hours of use from non rechargeable batteries Portable MT RX receivers use an internal GPS module and can provide distance and direction in
23. cally return to this screen The start up and main returning screen can be altered by the user to any screen MENU gt SYSTEM gt MAIN SCREEN e g to primarily display AIS vessel transmissions mes 12 35 13 Dia 4 4 se 65 669 5 ce 66 66 e DF 7 p E opm On this screen the battery condition quality of GPS signal alert indication and system time auto set from a GPS source can be monitored at a glance Activity on each distress channel is shown by the number of messages received on each channel within a 30 second time slot On AIS channels large numbers of transmission can be expected when SART AIS messages have not been filtered and in proximity to shipping channels The AIS display can be configured to display only SART AIS messages On the top line of the screen shown there is 406 shown with a 01 then on the same line another 01 Each dotted vertical line is used to mark the passing of one minute allowing the activity of the last 5 minutes to be seen On the 406 line it can be seen that there was a 406 transmission decoded approximately 20 seconds ago and other nearly 2 minutes ago If the number displayed 04 then 4 messages would have been decoded in that particular 30 second time slot From this top level screen pressing the right button cycles though each technology specific summary screen While on each screen pressing the up button cycles through sub screens for each pro
24. d If not already on the DF screen the ID and location of the alert ID is automatically set to the active tracking target ID but will not automatically shift to this screen When any key is pressed the sounder will cease and the relay will open Page 17 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware MT RX 3 Configuration At any time the MENU button can be pressed that will enter the configuration menu The receivers continue to operate normally and can raise alerts while in the menu system At any time the active buttons that may be pressed are shown on the screen such as the MENU UP DOWN and RIGHT buttons Using the above screen as an example pressing the RIGHT button will enter the ALERTS sub menu When reaching any configuration item pressing the RIGHT button again will highlight the item to change Once inside the menu pressing the MENU button again will go back up one level until the menu mode is exited All configuration changes are written to file only when leaving menu mode Page 18 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Alerts Sub Menu ACTIVE ONLY AIS FROMIMITY ENABLED AIS COLLISION ENABLED GFS ANCHOR 260 M RES ON 406 Items ACTIVE ONLY ACTIVE TEST and ACTIVE DB can be selected ACTIVE ONLY Only distress transmissions will activate an ale
25. d location Details for each transmission can be viewed by hovering over the red map marker Page 45 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Static Map Button When the Map button is pressed only visible when an entry in the history list contains a valid location the position is displayed using the selected map system By default the 406 Decoder PC application is configured to use OpenStreetMaps which can be used without an internet connection free of charge NOTE In order to use off line maps when there is not an internet connection available the PC application must have previously viewed the area at the current zoom level WITH an internet connection Once the area has been viewed the map data will be stored for later retrieval Many map systems have been integrated and can be used to provide many differing useful views of the location decoded These maps provide worldwide coverage r Map Ly Shown below is an example of the integrated ArcGIS Topological map system Lake Coleridge 2012 ESRI Map data 2012 ArcGIS Raos Page 46 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Email Notification The 406 Decoder PC application can be configured to automatically send email notifications when 406 messages are received or communication
26. d rescue These systems are secure and will not result in a false activation from beacons being tested or that have been activated in the wider surrounding area Because the MT RX 3 can lock to a 406 signal anywhere in the 406 band extremely quickly due to its DSP architecture only a single transmission is required to operate the MT RX 3 relay this means that only a single Test transmission is required in order to operate 406 Selective Decode Applications Man Overboard Alarm The MT RX 3 is perfectly suited as the foundation of a marine 406 man overboard system providing an instant alert with very high range capability A vessel for example may have 20 crew all with PLB devices fitted to life jackets Each of the PLB hex codes can be programmed into the MT RX 3 decoder This means that the decoder on a vessel can be alerted by the press of the test button from any of the crew members or by full activation of the beacon The MT RX 3 will not produce any false alarms from other beacons in the wider surrounding area A PLB has a much higher power output than most other man overboard systems so can have a higher range from the vessel PLBs are also becoming increasingly more affordable and are now a similar price to traditional Man Overboard transmitters The decoder when used for this application can still provide position information to crew members on the vessel that can then be processed by a connected mapping tool All ac
27. e ALERTS menu PROX WARN Defines a vessel safe distance from the current position before raising an warning A warning is a lesser audible alert and does not operate the relay note that proximity alerts must also be enabled in the ALERTS menu DISPLAY Setting to SART ONLY will result in ONLY AIS type 1 status 14 and 15 messages being displayed on the summary screen Setting to ALL displays all AIS messages on the summary screen This setting does not affect the ability to raise an alert or use any AIS feature RS232 OUT Setting to ENABLED outputs all SINGLE sentence AIS messages out the RS232 port at the rate configured by the SYSTEM baud rate This output can be used by navigation equipment that can accept standard AIVDM NMEA style messages The system baud rate typically should be configured to be 38400 baud if this feature is used Page 28 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware RSS Sub Menu SQUELCH DELAY SWEEP DETECT FREQUENCY This is the frequency used by the Received Signal Strength alert and RSS screen The FREQUENCY parameter can be set between 120MHz and 470MHz By default 121 5MHz is configured SQUELCH This is the signal level that the received signal must exceed for the SQUELCH DELAY period in order to raise an alert SQUELCH DELAY This is the time in seconds that the measured signal must have exceeded the configured SQUELCH
28. e MT RX is supplied with RS232 support but can be provided with an optional RS422 internal module that may provide improved compatibility with some NMEA navigation systems MA OpenCPN 3 2 2 NANA MA AA a E dl SS O AO 1 7 500 D tee Non inea pasih SIT ii a cane E Maintained D pth TSM farara fase note PT 0 Page 41 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware 406 Decoder PC Application When connected to the optional 406 Decoder PC application purchased separately remote real time notification of 406 transmissions is possible decoding and displaying all beacon protocol parameters Time stamped messages are additionally stored on the PC that is integrated with both on line OR off line maps from many map providers to display the location of the alert when available The 406 Decoder application provides visual and audible alerts of 406 distress transmissions Contig General Control History Hex 15 D Checksum E Hex 15 D Position 400C5929DCFFBFF 52D62 Country 512 New Zealand Protocol Std Location Serial EPIRB Input Power 121 dBm Mode Self Test Protocol Detail Serial GertNumber Salcorn MRB 406 406 GPS EPIRB 2 40 400C OFFBFF No Position Not Connected 224 Through the configuration of a simple external language file the application can be configured to operate in any language Assistance can be provided for language tr
29. for the distress homing signals transmitted on 121 5MHz and 243MHz Alerts can be raised when the signal level has increased above a configured squelch level for the set trigger period Optionally and more usefully an alert can be raised only when the 121 5MHz downwards sweep on the channel that will greatly decrease the probability of false alerts 00 06 03 RSS Pl ey 121500 mHz 120 DEM As shown above when a signal level increases above 100 dBm for 3 seconds the RSS receiver begins to look for a valid sweep signal The S icon will now be displayed indicating that the RSS squelch is open 5 00 12 34 ree 121500 mHz 26 D Page 9 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware If the downwards sweep is present for 3 seconds an alert will be raised if RSS alerts are enabled and the S icon will change to the H icon to indicate that a homing signal has been detected Any squelch level squelch trigger period and sweep trigger period can be configured Sweep detection can be disabled if required Page 10 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware AIS Screens The top level AIS screen defaults to the graphical vessel summary providing details of vessels within the area and direction of travel AIS target and collision avoidance status can be viewed on this screen The vessels shown on the top level AIS sc
30. formation to a 406 or AIS beacon location MT RX portable receivers are described by the use of the suffix P e g MT RX 3 P Portable 406 AIS 121 Page 5 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware MT RX 3 P Portable Locating Receiver Getting Started MT RX receivers are available as portable and fixed options When provided as a fixed receiver the MT RX will begin to operate normally as soon as power is applied and as long as an aerial is attached and connected to a suitable power source will be able to respond to alert conditions MT RX portable receivers remain in a zero power initial state until deliberately turned on and will remain on until powered off or until the auto shut down feature operates TO TURN ON Briefly press the bottom square button TO TURN OFF Press and HOLD the bottom square button for approximately 5 seconds After 2 seconds the MT RX will advise that that the unit will shut down Once shut down the MT RX will use zero power Page 6 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Summary Screen After performing a start up self test the MT RX 3 moves to the top level distress activity screen This screen provides the best indication of recent activity on distress channels of interest If the user has shifted from the main screen after several minutes of inactivity the MT RX 3 will automati
31. gainst the wrong ID Page 43 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Report Generation Any entry in the history list can be selected and used to generate a test report The company name and location of the reports folder can be set under Config gt General AAA le C ProgramData MicroTechnologies 406 SD 1 General Email Contig Results File From 406 Decoder sender gmail com C ProgramData MicroTechnologies 406 SD 1 res To recipient email com Min RSSI Level dBm 130 Host smtp gmail com Periodic Reset Time 0 Port 587 Test Reports User usernamedemail corn Name Y Enabled Password Joidoaca ook Company Name Email Alerts Repone okies Y Alerts Enabled Comms Status E No Self Test HTML Reports can be viewed in any web browser and printed if required Beacon Test Report 40043C4801572B3 Organisation Company Name Tested By Date 8 11 2013 2 37 11 p m Receiver Model 406 SD 1 PC Software v1 1 4 9 Hex 15 ID 40043C4801572B3 Checksum 9EE33 Country 512 New Zealand Protocol Std Location EPIRB MMSI Mode Distress Alert MMSI or Radio Call Sign 123456 Beacon Id 0 Position 43 31 28 S 172 43 04 E 406 MHz Measurements Input Power 121 dBm Pass O Fail Initials Notes Page 44 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8
32. ification Frequency Range All used 406 Beacon frequencies 406 020MHz 406 040MHz 406 040MHz 406 060MHz and 406 060MHz 406 080MHz in switched ranges All current 406 beacons operate in the 406 020MHz to 406 040MHz range Enclosure Plastic Die cast aluminium or panel mount options available on request Stainless steel enclosure surface mounting kit available Supply Voltage 12V Other voltages available on request between 6 and 16V Relay Contacts 1A Maximum voltage 24V Externally connected inductive loads such as contactor coils should use flyback diodes or snubber circuits Relay Closure e On any 406 message distress burst only or on reception of a specific beacon hex ID e On AIS type 1 SART status message 14 or 15 e OnRSS signal strength e On 121 5MHz 243 MHz sweep detection e On AIS vessel proximity e On AIS vessel collision alert e On GPS Anchor drift alert Temperature Limits 30 to 55 degrees Celsius 121 5MHz Receiver Sensitivity 110 dBm 406 MHz Receiver Sensitivity 118 dBm AIS A MHz Receiver Sensitivity 115 dBm AIS B MHz Receiver Sensitivity 115 dBm Receiver Absolute Maximum Input Power 17dBm Do NOT connect directly to a 406 beacon RSSI Range 130dBm to 0dBm not calibrated RSSI Resolution 0 5 dB Aerial Connector BNC Operating Current 130mA plus 18mA when relay energised 50mA when sounder operating typical
33. mounting and a flush panel mount kit is available to purchase separately that also allows for an integrated GPS module to be used The MT RX 3 operates multiple independent DSP Digital Signal Processing receivers concurrently allowing the simultaneous decoding and alerting of several distress signal types over many different frequencies Primarily the MT RX 3 has been developed to provide an alert and simple direction indicating capability for e 406MHz EPIRBs PLBs and ELT beacons operating across the frequencies 406 020 to 406 100 MHz AIS based SART alerting devices operating on both 161 975MHz and 162 025MHz e 121 5MHz man overboard devices Each of these receiving technologies operate concurrently to provide excellent coverage over many emerging and existing distress devices The receiver technologies used are the most current taking advantage of DSP techniques for high sensitivity and high rejection of unwanted interfering signals Page 4 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware AIS receiving and processing features include Dual 115dBm receivers e Clear man overboard alerts and time stamped logging to SD card e Graphical and text based local vessel display e Proximity alerts and warnings e Configurable collision avoidance alerts e GPS anchor alerts e RS232 Serial output for connection to PC based mapping tools Compatible with OpenCPN free mapping softw
34. moving towards the vessel or the vessel continues on a collision course then an alert can be raised In order to use the collision avoidance system l 2 3 Enable the collision avoidance alert from the ALERTS menu Configure the collision avoidance system found in MENU gt AIS gt COLLISION Set the TEST RADIUS This is how far from the current location that vessels are evaluated for a collision condition Setting the TEST RADIUS to a very large value such as 20 KM may not add any value and would result in unnecessary false alerts unless perhaps if accidentally anchoring in a shipping lane Set the SAFE RADIUS Should a vessel be allowed to continue on its current course or the vessel that the MT RX is part of and the vessels may intersect within the SAFE RADIUS then an alert may be raised Set the WARN TIME to define how long in advance an alert should be given Having considered the speed and direction of the vessels this is the prior notice that will be given before a vessel enters the SAFE RADIUS NOTE ifthe TEST RADIUS is very small and the speed of the vessel if very high then the full configured WARN TIME may not be possible As with the TEST RADIUS setting WARN TIME to a very large value such as 60 minutes may result in many unnecessary false alerts COLLISION TEST RADIUS SAFE RADIUS Page 31 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware AIS SART Tr
35. n of the current target that has been selected bearing and distance to that target The operation and use of the DF screen is better described in the Target Setting section While in this screen voice prompts can be enabled to allow direction finding to the target without the need to look at the screen The DF screen allows direction finding to 406 and AIS transmissions and also to manually entered waypoints Alert Operation The MT RX 3 can be configured to raise an alert through the on board relay or sounder under a variety of conditions The duration of sounder operation and relay operation can be independently configured via the alert menu system 406 alerts can be raised for transmissions that are e General Distress e General Distress plus any test transmission e General Distress plus any ID matching the 406 IDs stored in the 406 Selective Database AIS alerts can be raised for transmissions that are e Type 1 messages status 14 SART active e Type 1 messages status 14 plus status 15 SART test e Within a configured distance providing a simple proximity alert Separate warning and alert distances can be configured e Determined to be on a collision course based on direction of travel speed and safe area Page 15 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware distances configured see Collision Avoidance RSS Received Signal Strength
36. reen are as follows Stationary vessel o Moving vessel indicating direction 72 Vessel expected to collide based on collision alert configuration flashing O Vessel set as a target for direction finding using the DF screen FB Vessel that has not transmitted data in the last minute Page 11 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware The AIS vessel list screen provides an ordered list of the closest vessels updated as new transmissions are decoded The last transmission from each vessel can be selected to provide additional information such as current location Any vessel on this screen can be selected as a target by pressing the square button allowing the Direction Finding DF screen to to used 3560 0 ELACKADDER LAT LOHG HOG T 43 60543 172 71363 075 oO The SART Search and Rescue Transponder screen provides information relating to AIS distress type transmitters operating on both 161 975MHz and 162 025MHz These transponders are commonly used as man overboard transmitters Information decoded on this screen is logged directly to SD card and can be used to set as a target for direction finding to LAT E 43 36 1 LOHG E DISTANCE 1P2 42 55 Page 12 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware The AIS raw data screen displays decoded AIS packets from both channels in real time The M
37. ress the UP button until the log screen is shown 3 Press the DOWN button to select the ID of the transmission to VIEW target has not been set yet Press the square ENTER button The screen will automatically move to the top level display screen and show details for that file entry showing the record number at the top instead of the current time ws 6 To set this entry as the target press the ENTER button 7 The pop up TARGET SET will be displayed Page 34 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware 163 7 HEADING y yo DIST KM yoocss275357262 MP6 While on the target screen periodic voice messages will be announced indicating the distance and required bearing to target Page 35 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware 406 Selective Decode The Micro Technologies patented selective decode feature allows a database to be built of beacon hex ID codes within the decoder This means that the decoder will only activate the alert output when a 406 transmission has been received by beacons with the matching unique ID Using this technology new systems can be developed using powerful 406 beacons to instantly provide an distress alert either using the test button or fully activating the beacon In many cases immediate assistance can be provided without the need to notify search an
38. ro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware NMEA Sentence Type Typical NMEA Output WPL GPWPL 3751 65 S 14507 36 E 406 SOS 77 RMB GPRMB A 001 MOB 3751 65 S 14507 36 E V 88 BWC GPBWC 3751 65 S 14507 36 E 406 SOS 99 GLL GPGLL 3751 65 S 14507 36 E 93 TEST When ENABLED the NMEA output test feature is enabled using the TEST LAT and TEST LONG settings This allows testing of a navigation system without the need to activate an actual 406 beacon For this feature to operate the OUTPUT must be ENABLED The configured TYPE will be used for the duration of the NMEA output test This setting is not persistent cycling power to the MT RX 3 will always result in the feature being disabled If the feature is enabled and an actual 406 message is decoded the test setting will be automatically disabled TEST LAT Latitude for use when the NMEA output TEST is ENABLED TEST LONG Longitude for use when the NMEA output TEST is ENABLED Page 27 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware AIS Sub Menu z FROH ALERT 300 mM FROH WARH 1000 M Riese OUT DISAELED DISPLAY ALL COLLISION Allows all collision avoidance parameters to be set see Collision Avoidance PROX ALERT Defines a vessel safe distance from the current position before raising an alert note that proximity alerts must also be enabled in th
39. rt and close the relay All test transmissions are logged and displayed but will not raise an alert ACTIVE TEST Both distress AND test transmission will result in an alert being raised ACTIVE DB All distress transmissions AND any test transmission that matches an ID in the 406 selective database will result in an alert being raised AIS SART Items ACTIVE ONLY and ACTIVE TEST can be selected ACTIVE ONLY Only AIS type 1 messages status 14 transmissions will activate an alert and close the relay All test transmissions are logged and displayed but will not raise an alert ACTIVE TEST Both AIS type 1 messages status 14 transmissions AND status 15 test transmissions will result in an alert being raised AIS PROXIMITY Allow generation of warnings and alerts for the distances configured in the AIS menu Page 19 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Items ENABLED WARN WARN ONLY DISABLED and ENABLED can be selected ENABLED When selected when any AIS transmission that is determined to be less than the configured PROX ALERT DIST will result the relay and sounder operating ENABLED WARN In addition to the same functionality as the ENABLED setting this setting also provides an short duration audible warning and screen pop up when any AIS transmission that is less than the configured PROX WARN DIST distance WARN ONLY When selected upon reception of any A
40. ssion Lor Ma E EEE AEN ES 32 OPS AMI ai 32 406 Beacon Transmission Lo e A ei 33 Target AA e ea coo aces oes O it dba Guta anata a e i 33 406 Selective DISCOS A ak taba ined cna ees Bases yeah ia 36 406 Selective Decode APplCcaIOOS 1 3 2 sscesacensuecobavous ge Gucsade ca vse apn oaseu eat boacde a don vec qesnaascensteaiees 36 Installato ees A tnee 38 Connecting to ne MERA odds 39 Aerial O a A A E o RS 39 ASOCIAN UI O do e eso 41 406 Decoder PC APPO E oa hoe 42 Report ener stand in fl a aR dr domtsbantesont inten 44 Senal Port Configurations e a on RO E ANE iene 45 Integrated MAA coa 45 Live Map Updates E Rd ES ED O o 45 Static Map BUM ado 46 Email Not MOM sir dat a cli 47 Testing Email N Ot CO n A rcaaae area ieee eager ES 48 HERAS COSO lili 49 Disc A A ae E a 49 SPECIES A AA ihre NAE A Aa E eos 50 Manufacturer Declaration of CONTO dd 52 Page 3 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware Introduction The Micro Technologies MT RX series decoders are true multi band receivers They have been designed primarily for the purpose of decoding emergency signals and then to provide an alert to locate the source of the transmission for the purposes of early rescue By default the receiver is housed in a heavy weight robust PDL 56 series polycarbonate enclosure with thick aluminium front plate and waterproof seals either as fixed or portable variants The unit is well suited for panel
41. tivations would be logged normally Diver Resurfacing Alert The MT RX 3 is well suited to provide a diver resurfacing alert A resurfacing diver if carrying a PLB can in distress press the test button on a beacon and signal for assistance from the dive boat with or without notifying the emergency services There is no chance of false alerts from beacons being tested or activated in the wider surrounding Page 36 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware area messages are all logged and notification is instant If a beacon is fully activated the position can be provided by the decoder allowing early diver location in an emergency situation Yacht Club Distress Monitor A shore based MT RX 3 receiver can be programmed with the 406 PLB or EPIRB hex codes assigned to yacht club boats or assigned to individuals In a distress situation an alarm can be raised before a situation escalates to a point that would require the involvement of the emergency services The test button can be pressed on the 406 beacon or a full emergency alert raised Notification to the MT RX 3 receiver is instant The MT RX 3 can be configured to control a siren light or if connected to the supplied PC application display the beacon hex ID or alert position The MT RX 3 will not suffer from false alerts from other beacons being tested or activation in the wider surrounding area Anti Theft Vessel Control
42. to the maximum possible receive distance Although a high power transmission such as from a 406 PLB will increase distance the installed height of the receiver aerial is the key to a high performing system Page 39 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware When close to the ground the major obstacle to overcome since radio signals are mainly line of sight is the curvature of the earth The typical distance to expect and from testing also conservative between a 406 beacon and a receiver can be approximately calculated as follows distance sqrt 12 76 X height where distance is in kilometres and height is the aerial elevation in metres Therefore 1 metre elevation will have the approximate range of 3 5 kilometres 5 metres elevation range 8 kilometres 100 metres perhaps on a hill range 35 kilometres Page 40 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware AIS OpenCPN Support The MT RX has been tested with the free OpenCPN mapping PC application In many cases free maritime maps are available such as is the case for New Zealand In order to use OpenCPN ensure that AIS serial output has been enabled MENU gt AIS gt RS232 OUT and the RS232 baud rate has been set to a suitable rate for the application MENU gt SYSTEM gt BAUD Typically a baudrate of 38400 would be used for AIS receivers By default th
43. vents the sounder from operating and disables all system sounds except when an alert is raised RS422 Allows the use of the RS422 module at 4800 baud when ENABLED Any expansion board fitted on the connector that locates the RS422 module may no longer operate correctly if this option is enabled The RS422 module may be required in order to interface to NMEA systems AUTO SHUTDOWN This option should only be used when using portable MT RX systems or when considerable power savings are required When enabled this setting is the time in minutes that the unit will completely powered down after there has been no keypress activity Page 22 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware RS232 BAUD Sets the baud rate of the RS232 port to either 2400 4800 9600 or 38400 N 8 1 This is the port that is used to output NMEA messages for use for PC applications or navigation equipment This port is also used to accept an external GPS source that allows time to be set and distance to alerts to be determined MAIN SCREEN This allows any page on any main screen to be set as the default main screen This results in this screen being the screen that is first seen when powering up the unit or after a period of inactivity the MT RX will automatically revert to this screen Setting to DEFAULT will unset the last custom set screen and will return to the factory default main screen Setting to USER SET
44. viding access to logged results live data as received and additional parameters Page 7 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware 406 Decode Screens ms 12 35 13 HEH 15 _MOOCS9I2753572B3 COUNTRY Siz HEW ZEALAND The 406 main screen provides several decode sub screens that display details regarding the 406 message processed Recent database files stored on internal SD card provide translations from country ID to country name and also provide details of beacon model and manufacturer The decode history sub screen provides a means to view time stamped entries and also allows the entries to be selected to be used with the direction finding screen see Target Setting REC 0001 HEH 15 LOG 4OOCS3e7SS572ES Yo0Ccssersssrees 4OOCS327SSS72ES 12 35 230535 YOOCS3ePSSS 72S 12 35 2303 YOOCSIEPSSS7EES 12 35 2303 HOOCS323DCFFEFF Page 8 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware RSS Screen The RSS Received Signal Strength and sweep detection screen provides a clear indication of signal strength rapidly updated and if connected to a directional aerial aids in final location of common man overboard transmitters 406 beacons and voice transmissions from many common transmitters The RSS screen can be configured to display and provide an alert for any frequency from 120MHz to 470MHz but particularly useful
45. will set the screen to be the screen that was last used before entering the menu FACTORY Tools for factory calibration and testing purposes only TEST Allows testing of the unit by generating test messages as if they had been decoded by the unit under normal operating conditions If a 406 TEST test is performed and the unit has been configured to ignore test transmissions then there will be no change to the unit behaviour The same applies for AIS SOS and TEST options Pressing the RELAY option provides a simple method to check relay operation Pressing WAVE allows testing of wave files from the SD card Page 23 of 52 Micro Technologies NZ Limited 2014 MT RX 3 User Manual v1 0 8 v1 84 Firmware DF Sub Menu WAYFOIHT TARGET WAYPOINT LAT 43 550 5 WAYPOINT LONG 172 300E UOICE REFEAT 205 BEARING RELATIVE DEF FOSITION ENRELED WAYPOINT TARGET When enabled the DF screen uses the WAYPOINT LAT and WAYPOINT LONG settings to navigate to It is not possible to permanently enable this setting and is reset after being activated Reset of this option is to ensure that normal preference on startup is to set a target to a new 406 or AIS alert not a previously set waypoint that may not longer be current WAYPOINT LAT Waypoint latitude to use when the WAYPOINT TARGET is enabled This setting is stored with other configuration data but not actively used unless the WAYPOINT TARGET has been enabled WAYPOINT LONG
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