NGT-200 USER MANUAL
NGT-200 UM.E 20210520-02
1
1
PURPOSE
NGT-200 NSR GMDSS Tester
(Marine Radio Test Set) is intended to carry out the
operation, maintenance and servicing tests of MF/HF/VHF Radios with DSC and
NAVTEX receivers in accordance with IMO A.948 (23) or A.997(25), A.1020(26)
resolutions. Besides, if in extended version (A) Tester also lets to check AIS mobile
stations and AIS-SARTs according to the circular letter MSC.1/Circ.1252 and Cospas-
Sarsat beacons such as EPIRB, PLB, ELT, MOB devices in accordance with
MSC/Circ.1040.
NGT-200 supports testing of the following equipment:
●
VHF transceivers:
- operation tests on any simplex channel including 6, 9, 13 and 16 channels;
- measurement of carrier frequency and frequency deviation;
- measurement of antenna feeder SWR, forward and reflected power;
●
VHF transceivers with DSC:
- test of correct 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 equipment without any broadcast
emission;
- measurement of frequency and frequency deviation;
- measurement of output and reflected power;
●
MF/HF radiotelephone equipment:
- measurement of frequency in range (1600 – 30000) kHz;
- measurement of output power;
- functional tests in frequency range (1600 – 30000) kHz;
●
MF/HF controllers with DSC:
- check the MMSI code programmed in equipment;
- check receipt of DISTRESS signal by MF/HF equipment with DSC by means
of transmit of selective DISTRESS message;
●
MF/HF radiotelephone equipment with DSC:
- test of correct transmission/reception of DSC messages by means of
transmission/reception of selective Test call to particular MMSI number and
Distress (to all ships) messages on any of 6 distress channels;
●
NAVTEX equipment:
- operation tests by means of sending test message;
●
VHF equipment of duplex radiotelephony (portable):
