Communications Flashcards
What does SOI stand for?
Signal Operation Instructions
What does the SOI provide?
The organization of stations into netsAssigns call signsDesignates Net Control Stations (NCS)Assigns frequenciesChanges to alternate frequenciesSecurity Procedures to be used by Radio Operators
What Field Manual covers Tactical Single-Channel Radio Communications Techniques?
FM 24-18
What percent of slack should you allow when laying WD1 wire?
20 percent
Which means of communication is least secure?
Radio
What are five methods of communication?
- Radio2. Sound3. Visual4. Messenger5. Wire
Which means of communication is most secure?
Messenger
What is COMSEC?
COMmunications SECurity
What is OPSEC?
OPerations SECurity
List 5 factors that affect the range of radio equipment?
WeatherTerrainAntennaPowerLocation
What does NCS stand for?
Net Control Station
What does MIJI stand for?
Meaconing, Intrusion, Jamming and Interference
What is the range of a TA-1 field phone?
Approximately 3.7 miles using field wire
How many volts are in a TA-1 field phone when squeezed?
100 volts
What is the maximum effective distance of a TA-312 field phone in wet and dry climates?
Wet - 14 milesDry -22 miles
What does CB, LB, and CBS stand for on a TA-312 field phone?
CB-common batteryLB-local batteryCBS- common battery signaling
BA30 batteries should be installed how, in a TA-312 field phone?
1 up 1 down
What is WD-1?
Communications field wire
What does the “W” and “D” stand for in “WD-1” Wire?
Wire Drum
How deep should you dig when laying WD1 wire under hard-packed dirt roads?
6 to 12 inches
How deep should you dig WD1 wire in loose or sandy soil?
At least 3 feet
How much WD1 wire is on a donut roll (MX306)?
1/2 mile
How much WD1 wire is on a DR8 reel?
1/4 mile
How far beyond each side of the road should wire be buried?
At least 2 ft
WD1 wire must be how high above a road crossing?
At least 18 ft
How much tape should you use when taping a splice?
At least 4 inches
What device is used to enter FH (Frequency Hop) Data info into the SINCGARS?
A MX-10579 ECCM Fill Device
What do the letters AN and PRC stand for?
Army/Navy and Portable Radio Communicator
What is an AN/PRC-68?
A type of Squad radio small unit transceiver
What is the first thing you do before sending a radio message?
Listen to see if the Net is clear
What does SINCGARS stand for?
SINgle Channel Ground/Airborne Radio System
How much does the AN/PRC 77 weigh?
About 25 lbs
What is the approximate range of the AN/PRC 77?
5 to 8 KM
How many channels does the AN/PRC 77 have?
920
What type of knot do you use when repairing WD1 wire?
A square knot
Most infantry radios are _____ Modulated?
FM
What does EPLRS Stand for?
Enhanced Position Location Reporting System
