IDW: Communications Flashcards
The purpose of Main Communications Division (RADIO)
To operate, monitor and maintain all secure and nonsecure communications comms to and from ship and its equipment.
What is OPTASK COMMS?
Message sent out that provides directions on all communications requirements needed for a certain AOR, exercise, underway or event.
What can be found in the OPTASK COMMS?
Comms circuits required, frequency for all circuits, crypto requirements and circuit monitoring requirements.
Who develops our OPTASK COMMS?
Our CSG
What are the responsibilities of the Communications Watch Officer?
Operationally responsible for all incoming and outgoing traffic and the day to day operation of the Communications Center.
What are the responsibilities of the Communications Watch Officer? (BRADLEY’s job)
Operationally responsible for all incoming and outgoing traffic and the day to day operation of the Comms Center.
What does ADNS stand for and what does it do?
Automated Digital Network System. Gateway for all incoming and outgoing IP traffic.
What is the purpose of KEYMAT (crypto)?
Used to encrypt/decrypt communications.
What do IP services consist of?
Internet, phone lines, video teleconference e
What are the responsibilities of the EKMS Manager?
Designated in writing by CO to manage ships entire EKMS account.
What is River City?
River city is a means to limit/restrict all shipboard communications to the outside world.
What situations would RADIO set RIVER CITY?
Man overboard, death of Sailor, any sensitive mission or event etc.
What are all of the message precedences and time limits?
R - Routine 6 hrs; for messages of all types.
P - Priority 3 hrs; Essential info for operations in progress; highest precedence for admin messages
O - Immediate 30 min; Messages relating to situations that gravely affect the national forces.
Z - Flash 10 min or less ASAP; extreme urgency, usually reserved for initial enemy contact.
Main components of a Navy message.
Line 2 - Message Header Line 4 - Classification Line 5 - DTG Line 6 - From Line 7 - To Line 8 - INFO Line 12 - Subject, Classification, Body
What does the DTG stand for? What is its purpose in a Naval message?
Date Time Group. Used as a timestamp.
What shore based system is our primary means of sending and receiving traffic?
C2OIX (via IP services)
What’s an AMCROSS message?
Message delivered 24/7/365 to military by family members to notify them of emergency.
What does CUDIXS stand for? What’s it’s purpose?
Common User Digital Information Exchange Subsystem. Back up for CUDIX
What information can be found on COMSPOT?
Circuit Affected, Description of Problem, Actions Taken, Recommended Solution, Estimated Time of Restoral and Reason for Outage
Simplex
One way comms
Half duplex
Two way comms, but not at the same time (walkie-talkie)
Full Duplex
Two way comms that happen simultaneously.
What frequency provides the majority of our IP services?
Super High Frequency (via WSC-6 and WSC-8)
Frequency bands used by RADIO and ranges.
High Frequency: 3-30 MHz
Very High Frequency: 30-300 MHz
Ultra High Frequency: 300 MHz - 3GHz
Super High Frequency: 3-30 GHz
Extremely High Frequency: 30-300GHz
What’s GBS and its purpose?
Global Broadcast Service; Predator feeds, CNN, FOX. It receives video only.
DSCS
WSC-6; Defense Satellite Communications System
Difference between DSCS and CBSP
DSCS - Owned by DoD (more bandwidth)
CBSP - Commercially owned (less bandwidth)
CBSP
WSC-8; Commercial Broadband Satellite Provider
What is UHF LOS (line of sight) primarily used for?
Ship to ship (within LOS) and Ship to Air comms
Which frequency bands have satellite capabilities?
UHF, SHF, and EHF
What is UHF LOS (line of sight) primarily used for?
Ship to Ship and Ship to Air comms
Purpose of Satellite Communications (SATCOM)
Uses satellites to bounce signals back and forth to extend the range of communications.
What frequency has most protection against jamming and interception by the enemy?
Extremely high frequency (EHF)
USC-38 system
Used for EHF. 4 onboard.
What is EHF greatly affected by?
Weather
OE-82
TRASH CAN. Used for UHF SATCOM. 4 onboard.
What is our upcoming upgrade from WSC-8?
WSC-9
AS-390
SPIDER Used for UHF LOS comms. 9 onboard.
Who is the Ship’s COMMO
LT Reyes
Who is the EKMS Manager?
LT Peyton
What is COMSPOT?
A message that reports unusual comms difficulties; sent out at IMMEDIATE precedence after 30 min comms outage to restore.
