Результати проходження тесту
If messages are received which aren’t intended for own ship:
The effect of reflection of the radio waves in the ionosphere on the range depends on:
Of the AM-signal:
Silencing by a station, not in charge of the distress-traffic, is done as follows:
You have an important navigational or meteorological warning to transmit. What call should proceed this message when made on the radio telephone?:
You receive a distress alert on HF Radio. What should you do?:
The ideal aerial length depends on:
The category of a DSC-call determines:
A distress-call, onboard via RCC, may only be given Receipt if:
The DSC-controller display the following: DOO: 244562000 CH16; S distress sinking. After receiving this DSC message the following is done immediately:
What are the NAVTEX messages categories which cannot be suppressed?:
What do you understand by the initials EPIRB?:
Command of radio-traffic between vessels and coast stations lies:
A VHF transmission range is mainly determined by:
An area within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available is called:
On area A2 the function “Transmission of ship to shore distress alerts” is mainly based on:
The emergency battery of a GMDSS portophone:
The ship-shore HF-telephone-channel 2 228 consists of the frequencies 22 081,0 kHz and 22 777,0 kHz. In case of manual operation, one should tune the receiver on:
On board you have to switch from transmitting to receiving and vice versa. The shore station can transmit and receive simultaneously. You are working with two different frequencies. This method is called:
What mode must be used on the MF/HF transmission when making a radiotelephone call?:
If a ship in the MF-band wants to have a DSC-connection with a coast-station (no “distress alert” or a test alert) the following frequencies are chosen:
At the end of a radio telex-connection, when a “store and forward” message has been transmitted, the coast-station at least gives a:
If requested by a coastal radio station to participate in a rescue operation, what is the most important information you may give?:
Via Inmarsat-C a message is sent to an Inmarsat-C mailbox with a positive delivery notification (PDN). The ground station will:
By FleetNET communication is understood:
Define the class of emission G3E:
The whip-antenna of the MF transceiver was lost in bad weather. The MF transceiver can be used again:
In the traffic list a coast-station indicates that there is a radio telex-message for a vessel. To call for the message one should put in:
On the MF/HF transmitter-receiver there is a sensitivity control. Another name for this is:
The Satellite orbit in the Cospas-Sarsat system is:
To receive distress alerting and MSI via an Inmarsat-C set vessels must have:
Which class of emission is used for VHF radio telephony transmissions?:
Sea area A4 is in maritime radio traffic sea area:
With help of DSC a ship wants to contact a coast-station to have a question for telephone call. One has to choose from the following DSC-frequencies:
VHF channel 15 is:
Which of the following frequencies is used by the NAVTEX system?:
Which of the following is a coast station MMSI?:
The distress message is used when the vessel is threatened by a serious and imminent danger and is in need of immediate assistance. What is the telegraphy and telephony distress message like?:
VHF channel 6 is:
If a coast-station doesn’t answer a call on VHF working channel or doesn’t send a reply signal:
The Inmarsat-satellites are located:
What does the abbreviation VHF means?:
A satellite receives the transmissions of the 406 MHz Cospas-Sarsat EPIRB. The transmissions of the EPIRB will be:
What is the meaning of the abbreviation “RQ” at the end of a DSC sequence?:
With maintenance of batteries it is of primary importance that:
In radio-telex distress traffic preference is given to FEC because:
Via a coast-station radio medical advice is asked using NBDP. What command has to be given after ga +?:
The word CHANNEL is spelled conform the international phonetic alphabet:
Dish aerials are used with:
The impedance of a coax cable for the VHF-set depends on:
By reduced transmitting power is meant in VHF a power between:
MF communication is usually provided by:
In the Maritime Radio Traffic the order of priority is:
The number of oscillations of a wave per seconds is called:
Which of the following is a ship MMSI?:
The hydrostatic release of an EPIRB should be changed:
You want to send a DSC-call in connection with a shore telephone-call. You must choose:
An area within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available is called:
Which type of call will be sent by a ship adrift and needing the assistance of a tug? The weather is not bad and the ship will be aground 24 hours later.:
What is the emergency frequency on MF (Medium Frequency) radio?:
If a coast-station doesn’t answer a call on VHF working channel or doesn’t send a reply signal:
With an Inmarsat-C installation there is the addressing-option “special”. Via this option:
The correct functioning of a DSC-modem can be checked by means of:
After confirmation that there is no other radio-traffic, we call on a VHF working channel of a coast-station. When you don’t get any reply:
Modulation is:
What is the most important factor influencing the HF range?:
A Cospas-Sarsat EPIRB can be used in:
According to the rules of GMDSS all vessels have to be equipped with:
DSC uses for automatic identification the MMSI. The identification 002442000 is assigned to:
What is the proper term used to describe a coast radio station that primarily handles chargeable ship-to-shore message traffic of a routine nature?:
How are the NAVTEX areas identified?:
The safety message announces that a station:
Dish aerials are used with:
A distress alert on board may only be transmitted on explicit order of:
The normal mode of operation for each coast station shall be indicated in:
When on HF band a DSC distress alert is received, you have to listen to:
The following information must be given on the SART:
Reflection of radio waves in the ionosphere depends on:
The different layers in the ionosphere, important for radio propagation, are effected by:
Under GMDSS rules the trading area A1 can be considered to be: