Instrument is designed for checking transmitting and receiving channels of GMDSS complex in accordance

  with  requirements of  part 4  of ship's conventional equipment  Regulations and  DSC Protocol of International 

  Radio Consulting Committee requirements 493-8  and  541-7 without emission  in the emergency frequencies,

  in the wave-bands MF, HF with the channel's wave resistance being 50/75 Ohm and UHF - 50 Ohm.

 

    The Device  has the sound alarm  of reception (transmission) of  DSC 

and  indicates current  time while receiving  an  transmitting  DSC  and 

controls on-board  voltage.  The device allows  also show out complete 

autodiagnostic with LED indication. 

 

 While  diagnosing  (checking)  the  receiving  channel  the  instrument

allows to:

  - Form  and send to the input of the receiving unit  not less than three 

types  of   DSC  messages:  'Distress -5',   "Distress -1",  "Safety"  for

MF, HF  on  the  frequency  2187,5 kHz,  8414,5 kHz;  for UHF on  the 

frequency 156,525 MHz.

 

  - Check   the   sensitivity   of  radio  receiving   device,   providing  the

controllabi signal level to ship's receiving device input for MF, HF on the 

frequency 2185,5 kHz, 8414,5 kHz - 6-60 mV for UHF on the frequency 

156,525 MHz - 2-20 mV.

 

 

 

    While diagnosing the transmitting channel the instrument allows to check (evaluate):

    - Reliability of formation and passing (reception) of CSC messages of Distress format on the frequencies:

      MF, HF - 2187,5; 8414,5 kHz, USF - 156,525 Mhz.

    - power level in digital form and in the form of a LED bar: MF, HF < 400 W; USF < 40 W.

    - distortions, made by RTRD MF/HF, USF by the quantity of synchrobits, proceeding the phase sending 

      and CSC message check sum.

    - transmitting HF channel: transmitter - matching device - aerial by power level.

 

The set comprises:

  № Description Dimensions Weight Quantity

1 Device 270х215х65 3,6 kg 1

2 50 Оhm equivalent 242х110х60 1,6 kg 1

3 Printer 145х105х60 0,9 kg 1

4 Power supply cable 1

5 HF cable 2

6 Operation manuals (description and log)  

  

     VHF- radio stations (VHF- RS), MF/HF radio stations (MF-RS) test equipment is designed for checking: 

       - VHF equipment of two-way radio-telephone communication over the range 155 - 162 and 120 - 124 mHz          for correspondence to the requirements of the ship's equipment Regulations, part IY Radio Equipment. 

       - GMDSS VHF equipment with DSC for correspondence to the requirements of part IY of the ship's          conventional equipment Regulations and DSC Protocol of the International Radio Consulting Committee          requirements 493-8 without the emission on the frequency 156,525 mHz. 

       - MF/HF  equipment  for  correspondence  to  the  frequency  emitted by the transmitter over the range 1,6-30 mHz.

During the test of VHF equipment of two-way radio-telephone communication the device allows: 

- to check the serviceability of radio stations with amplitude and frequency modulation; 

- to measure the frequency of the transmitter over the range 155 - 162 mHz and 120 - 124 mHz; 

- to estimate the frequency instability of the transmitter; 

- to indicate the emitted power level; 

- to measure the deviation level; 

- to estimate the discernible signal of the radio station receiver with frequency modulation; 

During the test of GMDSS VHF equipment with DSC the device allows: 

- to check the reliability of the formation and passing of the DSC messages; 

- to check the power level in the digital form and in the form of LED bar < 25 W; 

- to measure the frequency 156,525 mHz; 

- to form and send to the input of the receiving unit not less than three types of the DSC messages: "Distress-5", "Distress-1", "Safety" on the frequency 156,525 mHz; 

- to check the sensitivity of the radio receiving device, providing the controllable signal level to the receiving device input 2 - 20mV on the frequency 156,525 mHz. 

During the test of MF/HF transmitter frequency allows 

- to measure MF/HF frequency over the range 1,6 - 30 mHz

     The Device has the sound alarm of the reception (transmission) of the DSC. During the reception and transmission it controls on-board voltage, and also carries out the complete autodiagnostic with LED indication. The Device has the output on the PC. 

The complete set of the shipment comprises: 

     1. Device - overall dimensions without antenna (mm) 200 x 100 x 45 

     2. Antenna - VHF measuring one, total height ? 520 mm 

     3. HF; LF cable, mains-operated 

     4. Printer (mm) 145 x 105 x 60 or software for PC (agreed while making an order) 

     5. Power supply unit - charging unit (agreed while making an order) 

     6. 50 Ohm equivalent, combined (agreed while making an order) 

     7. Operational manuals (description and log)