All VHF marine band radios operate in the simplex mode,which means that().
- Aonly one person may talk at a time
- Bonly two persons may talk at the same time
- Cthe radio only transmits
- Dthe radio only receive
All VHF marine band radios operate in the simplex mode,which means that().
1、VHF Radio is one of the very important
VHF Radio is one of the very important navigational instruments on board,()messages can be sent.Aby whichBthrough whichCby thatDthrough that
2、In admiralty sailing directions, bands
In admiralty sailing directions, bands is the word used to indicate()marking.AhorizontalBverticalCdiagonalDvertical or diagonal
3、An operator wants to move all files in
An operator wants to move all files inside the directory /home/operator to the current directory. Which of the following commands will complete...
4、If a GMDSS radio operator initiates a
If a GMDSS radio operator initiates a DSC distress transmission but does not insert a message,what happens? ()AThe transmission is aborted an...
5、All of the following operating charact
All of the following operating characteristics are listed on the name-plates of motors used aboard ship except the()Atemperature riseBinput kilowattsChorsepowerDoperating voltage
6、When the GMDSS Radio Operator on watch
When the GMDSS Radio Operator on watch hears“SECURITE”spoken three times he can expect to receive a message concerning().AThe safety of navig...