catalogue mrts-7m - gmdss test equipment · mrts-7m test scope. title: catalogue mrts-7m.cdr...
TRANSCRIPT
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— VHF equipment of duplex
radiotelephony with airplanes including
operating on 121.5MHz and 123,1MHz:· operation tests by transmission/reception
of modulated signal;
· measurements of frequency, output power
level and frequency modulation depth;
— VHF radiotelephone stations
operating in range (300 - 337) MHz
(intended for river-sea vessels):· measurement of output power,
carrier frequency and frequency deviation;
406MHz signal through broadcast.
· frequency measurement of 406MHz, 121.5MHz
· measurement of output power,
of 406MHz signal;
— AIS mobile stations Class A and Class
B and AIS-SARTs working in the Marine-
VHF band:
406MHz;
243MHz signals presence;
· receiving and decoding of the AIS
· passing the DSC polling information
carrier frequency and antenna VSWR;
406MHz signal;
messages;
· power level measurement on 406MHz,
· measurement of unmodulated carrier duration
· measurement of total transmission time of
emergency information transmitted on channel
· sending data/messages to AIS stations;
· audio-control of the sweep 121.5MHz and
vessel”.
— COSPAS-SARSAT radio beacons
operating on 406MHz 121.5MHz and
243MHz frequencies:
· estimation of the equivalent radiated power of
and 243MHz signals;
(channel 70);
· checking AIS respond to so called “virtual
· reception, demodulation and decoding of the
121.5MHz and 243MHz channels;
— MF/HF radiotelephone equipment
· test of correct transmission/reception of DSC
· measurement of frequency in range
· measurement of carrier frequency and frequency
— MF/HF radiotelephone equipment:
· operation tests on any simplex channel including 6,
reflected power;
deviation;
9, 13 and 16 channels;
· test of correct transmission/reception of DSC
(1600 – 30000) kHz;
· verify signal in frequency range of 9140...9560 Mhz;
· measurement of output power;
· measurement of carrier frequency and frequency
(1600 – 30000)kHz;
messages by means of transmission/reception,
· measurement of forward and reflected power, VSWR;
— VHF transceivers:
Distress (to all ships) messages;
routine or test calls to particular MMSI number and
deviation;
· measurement of antenna VSWR, forward and
— VHF transceivers with DSC:
· check the MMSI code programmed in equipment
without any broadcast emission;
· operation tests in frequency range
with DSC:
messages by means of transmission/reception of
· operation tests by means of sending test messages;
— VHF equipment of duplex radiotelephony
(portable):· operation tests on channels 6, 9, 13, 16 (at least);
· measurement of output power, carrier frequency
— NAVTEX equipment:
— SART:
Distress (to all ships) messages on any of 6 distress
channels;
and frequency deviation;
· signal level measurement;
· counting the number of sweeps;
Selective Test call to particular MMSI number and
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MRTS-7M TEST SCOPE