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NGT-200 USER MANUAL

NGT-200 UM.E 20210520-02

5.5

TEST NAVTEX – collection of NAVTEX Tests

Use

Transmitter

mode to test vessel

NAVTEX receiver.

Use

Receiver

mode to receive NAVTEX

system messages.

One of two text messages can be selected in
this mode:

Test message 1:

CD00
TEST FROM NGT-200

Test message 2:

CD00
0123456789ABCDE...

Then select operating frequency:

518.0 kHz

: International frequency;

490.0 kHz

regional

4209.5 kHz

NAVTEX frequencies.

== TEST  NAVTEX ==

Test message 1
Test message 2

== TEST NAVTEX ==

Transmitter
Receiver

== TEST NAVTEX ==

518.0 kHz
490 0 kHz
  4209.5 kHz

Содержание NGT-200

Страница 1: ...USERMANUAL NSR GMDSS TESTER NGT 200 Test for MF HF VHF DSC AIS EPIRB NAVTEX NGT 200 UM E 20210520 02...

Страница 2: ...NGT 200 UM E 20210520 02 MODIFY RECORD No Modify by Date Paragraph Version Reason 1 Q A 2019 12 12 01 First edition 2 Q A 2021 05 20 all 02 Software upgrade...

Страница 3: ...SETTINGS Test config 56 7 4 SETTINGS LCD contrast 57 7 5 SETTINGS Setup date time 58 7 6 SETTINGS Clear profiles 58 7 7 SETTINGS General info 58 7 8 SETTINGS U battery 59 7 9 SETTINGS Self test 59 8 T...

Страница 4: ...transmission reception of DSC messages by means of transmission reception of distress or test call to particular MMSI number and Distress to all ships messages check the MMSI code programmed in equip...

Страница 5: ...AIS messages sending data messages to AIS stations passing the DSC polling information channel 70 checking AIS response to virtual vessels Cospas Sarsat radio beacons measurement of output power and c...

Страница 6: ...NGT 200 USER MANUAL NGT 200 UM E 20210520 02 3 2 GENERAL VIEWS 2 1 Front view The front view of tester is shown on figure 2 1 Fig 2 1 NGT 200 front view...

Страница 7: ...rging after the accumulator is charged the led will fade 3 LCD 4 keyboard 5 USB B socket for connection to PC and battery charging 6 audio output for connection 3 5 mm jack Impedance 8 right and left...

Страница 8: ...B 200W 1 Optional 10 Crushproof and watertight plastic box 1 11 Calibration Certificate 1 12 User Manual 1 VHF Power sensor VSWR meter 60W designed for conducted measurements of the power and SWR in V...

Страница 9: ...keys Confirm select something by means of Enter and Esc keys cancel or move up menu level by means of Esc key After the tester is turned ON it displays the device s model its serial number date time...

Страница 10: ...NGT 200 USER MANUAL NGT 200 UM E 20210520 02 7 Fig 4 2 Menu tree...

Страница 11: ...Distress messages Test special test message according ITU R M 493 it has format specifier 120 Individual call So this message will not disturb anybody except for DUT Device Under Test Safety format s...

Страница 12: ...ted in menu SETTINGS Test config Press Enter to transmit Test message Repeated pressing of Enter will transmit DSC messages again If necessary output power level can be adjusted To go back to menu SEN...

Страница 13: ...n will be taken into account during estimation of the received signal level X signalizes the selected measurement configuration FIRST SCREEN of measurements MMSI 413000000 sender s MMSI code Format In...

Страница 14: ...generator CH Number of the VHF channel ITU F Carrier frequency kHz dF Frequency tuning step L Level of the output signal dBm dL Level step by keys and Mod FM Modulation type Supported FM CW SSB AM AM...

Страница 15: ...ers Output power level tuning 1 Direct input of required level in dBm due to the maximum level is 0 dBm the input level is always understood as negative number For example to settle 45 dBm just press...

Страница 16: ...keys Navigate using buttons and not while measuring P 43 5 11 3dBm S incident reflected power S measurement through Sensor VHF Power Sensor VSWR meter VSWR 1 08 measured VSWR Audio control Audio F1 to...

Страница 17: ...ults of channels 70 DSC 06 09 13 and 16 in one profile It can be used when preparing complex report about tested radio station See Item 9 for more details about and testing strategy 5 1 5 TEST VHF VHF...

Страница 18: ...ccepted by any maritime and coastal radio stations Thus it is recommended to send this DSC message only by means of cable with reduced level taking into account all safety precautions to avoid false D...

Страница 19: ...I of the NGT 200 by default Freq 2187 5 kHz operation frequency Pow 30 dBm output level of RF signal you may directly input power level using numeric buttons or toggle between the positions using and...

Страница 20: ...reception of the DSC message of Individual call format Otherwise the message will be sent but will not be received by this station The correct MMSI number may be input in menu SETTINGS Edit MMSI then...

Страница 21: ...76 dBm 40dB 30 dBm 42 dB Tester s input Power level Pin 51 76 40 42 30 24 dBm it is OK After receipt of message the following information will appear MMSI 413999333 MMSI code of the sender Format Ind...

Страница 22: ...ks as RF synthesizer supporting the following modulations CW SSB AM FMn F Carrier frequency kHz dF Frequency step L Level of the output signal dBm dL Output power level step it is tuned by keys and Mo...

Страница 23: ...configuration is selected in menu SETTINGS Pow meas config If the signal level is lower than 90 dBm the frequency data will not be displayed the notification Low level is shown Measurements through A...

Страница 24: ...Select TELEX frequency 2174 5 kHz 4174 5 kHz 6268 0 kHz 12520 0 kHz 16695 0 kHz After selecting TELEX message and frequency the following menu appears for example NSR TEST NNNN Selected message2 Freq...

Страница 25: ...ing it on LCD 5 3 1 TEST AIS Class A The TEST AIS Class A has following subitems AUTO TEST MODE the automatic mode for complex test of AIS station class A Interrogate Msg 3 request for message 3 and w...

Страница 26: ...you d like to avoid the manual input of the code use AIS MONITOR mode and receive at least 1 message from the AIS Station to be tested Return to AUTOTEST MODE to perform all tests Also if you perform...

Страница 27: ...o get all necessary information The tester will allow to save the data only when all information is received The maximum measurement cycle time is about 15 minutes There are additional information abo...

Страница 28: ...n this case the tester offers to save incomplete data When the F1 is pressed the TIMEOUT menu will be viewed with list of received and not received data The tester will be switched to this menu automa...

Страница 29: ...ly the tested AIS station transmitter s MMSI RSSI 41 5 dBm AIS station transmitter power level in dBm S test configuration is Power Sensor Slot x where x from 0 to 2249 received slot number informativ...

Страница 30: ...ts any message from tested AIS station for slot synchronization and then transmits request Message 15 to the tested AIS station Then the Tester goes to receive mode and waits for Message 5 All other m...

Страница 31: ...AUTO TEST MODE But It is possible to change the MSSI code manually You may directly input MMSI using numeric buttons or selecting the position by buttons and tune it by buttons and If the MMSI code i...

Страница 32: ...18 request for message 18 and wait for response Interrogate Msg 24 request for message 24 and wait for response AUTO TEST MODE the automatic mode for complex test of AIS station class B It is recomme...

Страница 33: ...t be connected and the following message will appear in the bottom of the screen Interf Not found Interface is not found and measurements will be carried out without feedback from tested station The f...

Страница 34: ...old one automatically You can clear selected profile or all the profiles using menu SETTINGS Clear profiles see Item 7 6 In this mode all data will be collected automatically the Tester receives the M...

Страница 35: ...request Message 15 to the tested AIS station Then the Tester goes to receive mode and waits for Message 18 All other messages will be ignored The received Message 18 will be displayed in the following...

Страница 36: ...I code of target station is displayed lower It is possible to change the MSSI code manually Select line TO Now you may directly input MMSI using numeric buttons or select the position by buttons and s...

Страница 37: ...r the USER ID number of the AIS SART before starting tests This allows ignoring the messages from other AIS stations It will help to perform tests by means of antenna through broadcast in port area Yo...

Страница 38: ...of any message in A and B channels to get all necessary information The tester will allow to save the data only when all information is received There is additional information about received data di...

Страница 39: ...the list with received not received data status will be displayed The tester will be automatically set to this mode after 15 minutes operation 5 3 4 Test AIS Receiver On entering this mode you will be...

Страница 40: ...It will help to perform tests by means of antenna through broadcast in port area You may directly input MMSI using numeric buttons or select the position by buttons and set it up by buttons After inpu...

Страница 41: ...be recorded in the next free profile Prof xx 5 3 6 Test BASE station By entering this mode you should input manually the MMSI number of the tested AIS base station to ignore messages from other AIS s...

Страница 42: ...he menu user should select the channel for testing A or B Virtual ship emulation procedure is performed as follows Tester sends the message 1 with the tester s MMSI code and increased on about 0 1 nau...

Страница 43: ...equency deviation of AIS station transmitter RSSI 41 5 dBm AIS station transmitter power level in dBm Slot x where x 0 to 2249 received slot number informative CRC OK cyclic redundancy check if calcul...

Страница 44: ...f received message measurement of carrier frequency measurement of signal power level measurement of total transmission time measurement of unmodulated carrier time measurement of signal phase deviati...

Страница 45: ...essel F1 Mes F2 Save you can save the measurements by pressing F2 or go to the next screen to check other parameters by pressing SECOND SCREEN P406 37 0 dBm power level of channel 406MHz F406 406025 1...

Страница 46: ...istress signals ID A208334D34D34D1 15 HEX ID code must correspond to the ID code marked on the EPIRB MARITIME USER protocol type in this case it s a maritime user protocol MMSI marine identifier CC 41...

Страница 47: ...ample After pressing Enter the following menu will appear To start measurements press Enter Fx 121502 572 carrier frequency in kHz RSSI 18 3 dBm signal level in antenna Fmod 336 1056 Hz modulating aud...

Страница 48: ...save results in one profile 5 4 4 TEST CH 243 MHz In this measurement mode you can check channel 243MHz After pressing Enter the following menu will appear To start measurements press Enter Fx 243001...

Страница 49: ...system messages One of two text messages can be selected in this mode Test message 1 CD00 TEST FROM NGT 200 or Test message 2 CD00 0123456789ABCDE Then select operating frequency 518 0 kHz Internation...

Страница 50: ...carriage return character lf line feed character TEST FROM NGT 200 the content of Message 1 Power output signal level Repeat number of messages to be sent can be adjusted by inputting required number...

Страница 51: ...nterface with RS 422 485 or RS 232 Step 1 Receiver bit rate select bit rate 38400 baud for testing messages from AIS stations 4800 baud to test vessel s sensors Step 2 Interface F1 select interface by...

Страница 52: ...larly all the sentences received on VHF channel For details about AIVDO AIVDM sentences look IEC 61993 2 An example of sentence transmitted by AIS station Class B built in GPS receiver start symbol of...

Страница 53: ...e number for example 15 40 measurement time 02 08 2017 measurement date MMSI 413900000 tested station MMSI Format format specifier Categ received message category CRC CRC check result of received mess...

Страница 54: ...IS station FIRST SCREEN Pr 47 profile number for example 12 59 measurement time 23 07 2018 measurement date ID 1 data from AIS Message 1 A 42 5 dBm 9 Hz Power level and Frequency error for AIS Channel...

Страница 55: ...EA is not connected AIS A saved data type is AIS Class A station An example of saved test results of an EPIRB FIRST SCREEN Pr 14 profile number as an example only 14 18 measurement time 08 10 18 measu...

Страница 56: ...rameters if any Freq carrier frequency Pow power level Fmod frequency modulation M amplitude modulation depth FOURTH SCREEN Sweep 243 MHz displays 243MHz signal parameters if any Pr 14 14 18 08 10 18...

Страница 57: ...revision U battery internal Li Ion battery voltage Self test self test of NGT 200 tester 7 1 SETTINGS EDIT MMSI You can check the current MMSI number of device under test and of the Tester in this me...

Страница 58: ...grouped by MMSI code Thus Ship ID is the only marker that will allow group test results of all the equipment on the vessel True to say Ship ID is a measurement group label making usage more convenien...

Страница 59: ...ments by pressing buttons and In result during the tests the selected configuration will be displayed on the screen with help of symbols D direct connection S power sensor and VSWR meter A external at...

Страница 60: ...ic keys To exit menu press Esc selected configuration will be saved automatically Detailed information about how to select a proper configuration of power measurement can be found in Item 9 7 4 SETTIN...

Страница 61: ...menu one can delete selected profile or all profiles 3 use buttons to select profile that you need to delete and press F2 key To clear all profiles press F1 7 7 SETTINGS General info In this menu one...

Страница 62: ...ally switched to USB power supply source when connected Each pressing of Enter key will measure the voltage again 7 9 SETTINGS Self test This menu item allows doing the self test of NGT 200 Press Ente...

Страница 63: ...the RF IN OUT connector 8 2 Technical specifications of measuring receiver 8 2 1 Max signal level on RF IN OUT not more than 20 dBm or 100 mW 8 2 2 Attenuation range of input signal by internal atten...

Страница 64: ...onfiguration in menu SETTINGS Test config This setup allows to test with the most accuracy the output power level of transmitter and the SWR of antenna feeder in real circumstances on the vessel Besid...

Страница 65: ...he DISTRESS signal But anyway this checking must be carried out with precautions to avoid false distress alert Tester automatically detects connected VHF Power sensor SWR meter thus there is no need t...

Страница 66: ...OUT Power level of radio station under test can be only estimated as it depends on a number of the factors on distance and position of the Tester and the radio station on surrounding objects their fo...

Страница 67: ...te of MF HF radio stations because even in case of accidental sending of signal signal power level on Tester s input will not surpass maximum permitted limit Please avoid direct connection of RF IN OU...

Страница 68: ...ing DSC Watch receiver of radio station with DSC Select configuration VHF direct in menu SETTINGS Test config VHF config if you are testing VHF Transceiver or select MF HF direct in menu SETTINGS Test...

Страница 69: ...yes Radio st w DSC Fig 9 5 MF HF DSC TEST signal estimate no yes Radio st w DSC Receiver route check Measurement Config Band Mode Output level dBm Target Fig 9 1 VHF DSC signals receive 63 130 1 Radio...

Страница 70: ...ice under test You will see measured of frequency power level and frequency deviation on Tester s screen With PTT push to talk pressed save measured results by pressing Esc Step 7 save measurement res...

Страница 71: ...lect channel CH 06 and press PTT push to talk on device under test You will see measured of frequency power level and frequency deviation on Tester s screen With PTT push to talk pressed save measured...

Страница 72: ...primary testing of the just mounted station make sure that AIS equipment is installed in proper way according to this guidance and manufacturer demands to get the successful operation of the AIS One...

Страница 73: ...AIS station for message 5 In TEST AIS TEST AIS Class A mode and for message 24 In TEST AIS TEST AIS Class B mode in one minute c After the message 5 or message 24 is received by tester the tester tran...

Страница 74: ...r the sound signal the message 1 with MMSI 413999998 and increased relatively to AIS station coordinates on 0 1 nautical mile will be sent in 2 4 seconds As a result the virtual ship object with MMSI...

Страница 75: ...up to 15 minutes before AIS SART starts transmission of test messages It depends on the AIS SART capability to determine the coordinates fast by means of internal GPS receiver Most general it will req...

Страница 76: ...E 20210520 02 73 10 TESTER S CALIBRATION The tester is a complex special use electric device Thus only authorized laboratories by means of specialized equipment should calibrate it The tester should...

Страница 77: ...idity of air no more than 80 It is necessary to keep the device in package for three hours minimum at normal conditions after it was at temperature variations After storage in conditions of high humid...

Страница 78: ...of standard connector e g of PC USB connector or network USB adaptor Once external power source is connected the Tester is charging no difference if it turned ON or OFF If the Tester s accumulator is...

Страница 79: ...2 20 89 21 38 21 88 22 39 22 91 23 44 23 99 24 55 44 25 12 25 70 26 30 26 92 27 54 28 18 28 84 29 51 30 20 30 90 45 31 62 32 36 33 11 33 88 34 67 35 48 36 31 37 15 38 02 38 90 46 39 81 40 74 41 69 42...

Страница 80: ...T on NGT 200 connector pin type DSUB 9 male Type of signal sent to outlet While connecting to external equipment connect to 1 Not connected Don t connect 2 RS232 RX RX232 Tx 3 RS232 TX RX232 Rx 4 Not...

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