Correct Answer Only

Front 1

#01. What is the purpose of the reference frequency oscillator in the AN/GRC-206?

Back 1

To generate a frequency that is used to control time keeping of internal clocks

Front 2

#02. Which set of operation modes identifies the communications capabilities of the AN/GRC-206

Back 2

HF SSB; VHF FM; VHF AM; UHF AM

Front 3

#03. Which function does the AN/GRC-206 signal distribution unit provide?

Back 3

Provides interface with the RSC for remote or local operation

Front 4

#04. What is the maximum output power of the AN/VRC-83 that is installed in the AN/GRC-206?

Back 4

30 Watts

Front 5

#05. Refer to figure 1-3, how is tuning of the main receiver accomplished in the RT-1319?

Back 5

By the data converter assembly in response to keyboard input

Front 6

#06. What does the AN/VRC-83 guard receiver use to produce its intermediate frequency?

Back 6

Internal oscillators

Front 7

#07. How is the operator alerted when AN/VRC-83 source voltage drops below 20 VDC?

Back 7

The decimal separating kHz and MHz on the display blinks

Front 8

#08. What is the maximum power output of the AN/GRC-206 in high frequency single sideband (HF SSB) mode?

Back 8

150 watts

Front 9

#09. In the AN/GRC-206 HF SSB subsystem, what is the purpose of the power supply overload latch circuit?

Back 9

It shuts down voltage output if an abnormally large load appears

Front 10

#10. Which AN/FLR-9 subassembly combines radio frequency inputs in such a way as to produce a highly directional beam antenna?

Back 10

Beam forming equipment

Front 11

#11. For up to how many receivers does each AN/FLR-9 RFSM operator control unit provide operators the capability of selecting the radio frequency beam.

Back 11

16

Front 12

#12. How many rings of antenna elements and how many elements are there in the AN/FLR-9 array?

Back 12

3, 192

Front 13

#13. Which is a function of the AN/FLR-9 reflecting screens?

Back 13

Increase the power gain of individual elements

Front 14

#14. Which function is performed by the AN/FLR-9 ground screens?

Back 14

Ensure uniform impedance from element to element regardless of soil properties

Front 15

#15. What is the purpose of the AN/FLR-9 Central Building line tuners?

Back 15

Compensation for feed cable electrical length variations

Front 16

#16. What indication does the AN/FLR-9 RFSM provide to the operator to indicate a successful connection has been made?

Back 16

Visible verification on the OCU display

Front 17

#17. Which AN/FLR-9 RFSM assembly provides an interface between the operator control units and the control subsystem?

Back 17

IDMUX

Front 18

#18. From what source does the AN/FLR-9 RFSM operator control unit receive power?

Back 18

From the IDMUX

Front 19

#19. Where is the Enhanced Terminal Voice System maintenance position located?

Back 19

In the central equipment racks

Front 20

#20. What capabilities can be provided at the Enhance Terminal Voice System position programming?

Back 20

Map

Front 21

#21. Which term identifies a display of Enhanced Terminal Voice System position programming?

Back 21

Map

Front 22

#22. Which Enhanced Terminal Voice System assembly is capable of changing system passwords and displaying system fault location?

Back 22

Supervisory configuration terminal

Front 23

#23. Which Enhanced Terminal Voice System assembly is responsible for interfacing between the demarcation panel and radio processor cards?

Back 23

Radio distribution panel

Front 24

#24. How many telephone lines are provided by each telephone processor?

Back 24

1

Front 25

#25. In the digital Voice Recording System, what controls operation of the digital recording unit?

Back 25

The computer workstation

Front 26

#26. The uninterruptible power supply for the Digital Voice Recording System is designed to provide power for

Back 26

5 minutes

Front 27

#27. In the Digital Voice Recording System, what is the recording capacity of each digital audiotape?

Back 27

500 linear hours

Front 28

#28. In the Digital Voice Recording System, how many satellites need to be acquired by the Global Positioning System receiver for an accurate time stamp?

Back 28

3

Front 29

#29. Which signals are recorded on the Digital Voice Recording System digital recording unit hard drive?

Back 29

Only signals containing audio

Front 30

#30. When does the Digital Voice Recording System digital recording unit copy hard-drive information to a digital audiotape?

Back 30

Every 15 minutes

Front 31

#31. Which statement best describes the function of a high frequency system enhanced with automatic link establishment capability?

Back 31

The ALE circuitry automatically tests several channels and selects the clearest for communications

Front 32

#32. Which term identifies the process of transmitting an address code to establish a communication link via SCOPE Command?

Back 32

Call

Front 33

#33. Link Quality Analysis we define as

Back 33

the process of sounding and determining channel clarity

Front 34

#34. If your SCOPE Command station links with a station that is not preprogrammed into your other-station address listing, this other station's address is

Back 34

referred to as a floating address

Front 35

#35. Each SCOPE Command station consists of three sites,

Back 35

transmit, receive, and control

Front 36

#36. Where is the SCOPE Command's centralized network control station located?

Back 36

Andrews AFB, MD

Front 37

#37. Which SCOPE Command mission provides high frequency communications for the President, Vice President, and Cabinet members?

Back 37

Mystic Star

Front 38

#38. What is one advantage of using SCOPE Command's high frequency signal as opposed to satellite for sending and receiving E-mail?

Back 38

HF is most likely to be available during crisis

Front 39

#39. Each SCOPE Command's station's three sites are interconnected by

Back 39

a Wide area network

Front 40

#40. What method of keying is used by SCOPE Command's digital electronic switch when a circuit is a phone patch?

Back 40

VOX

Front 41

#41. What is the primary difference between the receive/transmit units used at the transmitter sites and the RT units used at the receiver site at a SCOPE Command station?

Back 41

There is no difference, they are the same unit

Front 42

#42 What is the output power of the SCOPE Command power amplifier?

Back 42

4000 Watts

Front 43

#43. Which of the following statements concerning SCOPE Command RF loop back testing is not true?

Back 43

The test indicates how well the station communicates with a distant station

Front 44

#44. In a Demand Assigned Multiple Access system, which functions as the network control station?

Back 44

Any remote unit possessing the appropriate hardware and software

Front 45

#45. How many subscribers can a single transponder support by using a Demand Assigned Multiple Access system?

Back 45

Several thousand

Front 46

#46. Refer to figure 5-2, which module contains all of the voice/data interfaces to external equipment?

Back 46

COMSEC module

Front 47

#47. Refer to figure 5-2, which module of the AN/PSC-5 provides the primary operator interface for RT status control?

Back 47

Controller module

Front 48

#48. Which AN/PSC-5 module performs most of the unit's receive functions?

Back 48

RF/IF module

Front 49

#49. What is the primary purpose of a missile site's ultra high frequency communications?

Back 49

To provide contact with the airborne command post and other aircraft in range

Front 50

#50. What is the transmit output power of the survivable low frequency communications system (SLFCS)?

Back 50

It does not transmit

Front 51

#51. When the survivable low frequency communication system at a missile site receives a message, how is that message displayed?

Back 51

On the higher authority visual display unit

Front 52

#52. Which missile site component enables monitor and control of SLFCS, AFSATCOM, and SACDIN directly from the console?

Back 52

The remote message processing subsystem

Front 53

#53. What is the minimum output power of the UHF radio system?

Back 53

100 Watts

Front 54

#54. Which statement concerning electromagnetic pulses is true?

Back 54

Newer circuitry is more susceptible to damage

Front 55

#55. What requirement must be met to enable the survivable low frequency communications system's demodulator to decipher encrypted signals?

Back 55

Receiver and distant transmitter be time synchronized and have identical cipher key

Front 56

#56. At a missile site, The Rapid Execution and Combat Targeting is used in place of what AN/FLR-97 subassembly?

Back 56

The teleprinter

Front 57

#57. What does the term "ICOM" indicate when we speak of the RT-1523 SINCGARS radios?

Back 57

Integrated communications security

Front 58

#58. Which RT-1523 SINCGARS subassembly removes synchronization and frequency-hopping information that is embedded in a receiver signal?

Back 58

The interleaver

Front 59

#59. The SIDETONE DISABLE line of the RT-1523 SINCGARS can be set to logic 1 if

Back 59

the temperature of the radio set rises above 105 degree Centigrade

Front 60

#60 From what source does the RT-1523 SINCGARS radio's control module obtain instructions during remote and local operation respectively?

Back 60

Remote I/O module and front panel

Front 61

#61. In the RT-1523 SINCGARS, what happens if the VSWR goes above 5:1 and you are transmitting with a man pack antenna?

Back 61

output power is reduced

Front 62

#62. Which public address system component is capable of taking one input and providing several equal outputs?

Back 62

Distribution Amplifier

Front 63

#63. Which statement concerning public address system speaker ratings is true?

Back 63

RMS power denotes the wattage a speaker can handle on a continuous basis

Front 64

#64. When is it best to use a public address system amplifier's 70-volt output speaker connection?

Back 64

When loud volume is not a primary consideration

Front 65

#65. Why is it important to choose the correct speaker configuration (series, parallel, series-parallel), when setting up a PA system?

Back 65

The configuration affects the impedance seen at the amplifier