Communications

Question 1

What does SOI stand for?

Answer 1

Signal Operation Instructions

Question 2

What does the SOI provide?

Answer 2

• The organization of stations into nets -Assigns call signs
• Designates Net Control Stations (NCS) -Assigns frequencies
• Changes to alternate frequencies
• Security Procedures to be used by Radio Operators

Question 3

What Field Manual covers Tactical Single-Channel Radio Communications Techniques?

Answer 3

FM 24-18

Question 4

What percent of slack should you allow when laying WD1 wire?

Answer 4

20 percent

Question 5

Which means of communication is least secure?

Answer 5

Radio

Question 6

What are five methods of communication?

Answer 6

. Radio

2. Sound
3. Visual
4. Messenger 5. Wire

Question 7

Which means of communication is most secure?

Answer 7

Messenger

Question 8

What is COMSEC?

Answer 8

COMmunications SECurity

Question 9

What is OPSEC?

Answer 9

OPerations SECurity

Question 10

List 5 factors that affect the range of radio equipment?

Answer 10

Weather, Terrain, Antenna, Powe,r Location

Question 11

What does NCS stand for?

Answer 11

Net Control Station

Question 12

What does MIJI stand for?

Answer 12

Meaconing, Intrusion, Jamming and Interference

Question 13

What is the range of a TA-1 field phone?

Answer 13

Approximately 3.7 miles using field wire

Question 14

How many volts are in a TA-1 field phone when squeezed?

Answer 14

100 volts

Question 15

What is the maximum effective distance of a TA-312 field phone in wet and dry climates?

Answer 15

• Wet - 14 miles

- Dry -22 miles

Question 16

What does CB, LB, and CBS stand for on a TA-312 field phone?

Answer 16

CB-common battery
LB-local battery
CBS- common battery signaling

Question 17

BA30 batteries should be installed how, in a TA-312 field phone?

Answer 17

1 up 1 down

Question 18

What is WD-1?

Answer 18

Communications field wire

Question 19

What does the “W” and “D” stand for in “WD-1” Wire?

Answer 19

Wire Drum

Question 20

How deep should you dig when laying WD1 wire under hard-packed dirt roads?

Answer 20

6 to 12 inches

Question 21

How deep should you dig WD1 wire in loose or sandy soil?

Answer 21

At least 3 feet

Question 22

How much WD1 wire is on a donut roll (MX306)?

Answer 22

1/2 mile

Question 23

How much WD1 wire is on a DR8 reel?

Answer 23

1/4 mile

Question 24

How far beyond each side of the road should wire be buried?

Answer 24

At least 2 ft

Question 25

WD1 wire must be how high above a road crossing?

Answer 25

At least 18 ft

Question 26

How much tape should you use when taping a splice?

Answer 26

At least 4 inches

Question 27

What device is used to enter FH (Frequency Hop) Data info into the SINCGARS?

Answer 27

A MX-10579 ECCM Fill Device

Question 28

What do the letters AN and PRC stand for?

Answer 28

Army/Navy and Portable Radio Communicator

Question 29

What is an AN/PRC-68?

Answer 29

A type of Squad radio small unit transceiver

Question 30

What is the first thing you do before sending a radio message?

Answer 30

Listen to see if the Net is clear

Question 31

What does SINCGARS stand for?

Answer 31

SINgle Channel Ground/Airborne Radio System

Question 32

How much does the AN/PRC 77 weigh?

Answer 32

About 25 lbs

Question 33

What is the approximate range of the AN/PRC 77?

Answer 33

5 to 8 KM

Question 34

How many channels does the AN/PRC 77 have?

Answer 34

920

Question 35

What type of knot do you use when repairing WD1 wire?

Answer 35

A square knot

Question 36

Most infantry radios are _____ Modulated?

Answer 36

FM

Question 37

What does EPLRS Stand for?

Answer 37

Enhanced Position Location Reporting System