Marine Radio Test Set  MRTS-7M (GMDSS Multi Tester) is designed to carry out the mandatory periodical or annual surveys of all range of GMDSS equipment: AIS Stations, EPIRBs, MF/HF/VHF Radios with DSC and NAVTEX receivers in accordance with IMO A.948 (23) or A.997(25), A.1020(26), resolutions and MSC.1/Circ.1252, MSC.1/Circ.1039, 1040 circular letters. 

Marine Radio Test Set  MRTS-7M is all-in-one now.

The MRTS-7M is the device capable to provide accurate, independent operation test of the following equipment:

• VHF receiver-transmitters
• VHF DSC Controllers
• VHF Watch Receivers
• AIS Class A, AIS Class B, AtoN, AIS Base stations
• AIS-SARTs
• EPIRB, PLB
• MF/HF radiotelephone equipment
• MF/HF DSC Controllers
• MF/HF Watch Receivers
• NAVTEX equipment
• 9GHz SART (optionally)

The GMDSS Multi Tester MRTS-7M is specified equipment for radio inspectors performing mandatory, periodical surveys of ship-borne communication equipment.

The tester allows ensuring the GMDSS equipment meets the appropriate performance requirements.

The Marine Radio Test System MRTS-7M is capable to transmit and receive the signal by:

• broadcast antenna
• direct connection by means of power sensor meter, attenuator and cables (conductive measurements)

All the test procedures are provided in accordance with international standards, such as:

• IMO A.948 (23) or A.997(25), A.1020(26) resolutions (for marine radio stations);
• The circular letter MSC.1/Circ.1252 (for AIS stations);
• IMO Circular MSC.1/Circ.1039, 1040 (for C/S beacons);
• IMO Resolution A.802(19), SOLAS-74/88 (for SART).

The MRTS-7M has a newest software, designed to make survey work easier.

The device can be connected by means of standard USB A - USB B cable. Special software is available for download. 

The software is compatible with Windows, MAC OS X and Linux. It provides possibility of automatic generation of IMO-like reports for all types of tested equipment. Even more, now a surveyor can generate one combined report of all the safety equipment tested on a vessel. 

A surveyor’s paper work can be now reduced to minimum: just generate a report, print it and sign! Or save it and send by e-mail. Add your company header with the logo and contacts in the user's profile, thus the test reports will be automatically generated with the header selected.

Linux, OS X and Windows 10 don’t require any drivers installation. For Windows 7 and earlier versions FTDI driver should be installed for proper connection on first run.

Windows 32 bits is supported.

Complete set of the tester:

1. Main unit (MRTS–7M)
2. Power supply unit
3. VHF/MF/HF telescopic antenna
4. VHF Pow-VSWR meter (60W)
5. USB-A – USB-B cable
6. NMEA IN/OUT cable (DB9 fem – open wire 1.5m)
7. User Manual
8. Calibration Certificate
9. Watertight & crushproof plastic box

OPTIONS:

• SART testing unit
• MF/HF Attenuator 200W
• AIS pilot-plug cable

Operational frequencies:

VHF range all simplex channels:  156,000-163,000 MHz 

VHF range CH70:   156,525 MHz

MF/HF Range: 400 - 30 000 kHz

MF range DSC Mode:

• 2187.5 kHz – Distress frequency;
• 2177.0 kHz – Traffic frequency;
• 2189.5 kHz – Traffic frequency.

HF range DSC Mode:

• 4207.5 kHz
• 6312.0 kHz
• 8414.5 kHz
• 12577.0 kHz
• 16804.5 kHz

Measurement accuracy:

• Frequency measurement general: +/- 0.2 ppm +/-1 digit
• Frequency measurement at CH70: +/- 0.2kHz

Ouput signal:

Stability of output frequencies (GTXO-91V/EN 19.20MHz):

• Frequency setup accuracy at +25°С: ±1,0 ppm ;
• Temperature stability of frequency in range of  0 … +45°С:  ±0,5 ppm ;
• Aging rate: not more ±1,0 ppm/year for first year.

Levels of output signals in DSC mode:

Max. POW level:

• VHF range: -13 dBm ± 1 dB;
• MF/HF range:  -13 dBm ± 1 dB.

Min. POW level:

• VHF range: -99 dBm ± 3 dB;
• MF/HF range:  -99 dBm ± 3 dB

Levels of output signals in MF/HF and VHF Synthesizer mode.

• 400 - 30 000 kHz: 13 dBm ± 1,0 dB
• 156 000 - 163 000 kHz: 13 dBm ± 1,0 dB

Signal attenuation range:  0 - 93  dB