Week 3 Revision Session Flashcards
When would you wish to authenticate?
Transmitting blind When ordered to do to When in doubt Imposing/lifting emergency silence Countermanding emergency silence
What is ‘bead window’ and what is the response?
When someone says something that they are not supposed to on clear comms
Roger out.
What are the two types of authentication?
Time authentication
Challenge and response
What are the 2 modes of SAR?
Swath
Spot
What information would AIS give?
Gross tonage IMO number Point of origin/destination Course Position Speed Callsign Name of vessel
Airborne uses of AIS?
Fishing fleet management and control
Maritime security
Search and rescue
Fleet and cargo tracking
What information would you expect in a handover message?
ETA off task Weather in the area Callsigns in area Threats in area Current tasking
What would you give in a joining message?
Serviceability ETA POB Weapon loadout Joining FL latest SPINs
What is codeword colour?
Request for more information
What is codeword active
Emissions are detected from that site
What is the codeword for down
Emissions have stopped at that site (no longer transmitting)
What is the codeword Lowdown?
Tactical picture report of ground activity to COMAO and Strike package prior to push into area
What is the codeword if someone says something over the net they are not supposed to?
Bead window
What is the purpose of authentication
Protects communications systems against acceptance of fraudulent transmission
