RCOM Flashcards

1
Q

Which radios can simultaneously monitor guard while receiving and transmitting on any other frequency?

A

VU1 and VU2

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2
Q

Which radio does not offer Frequency Hopping (FH) communication?

A

VU1

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3
Q

What is the purpose of the Improved Frequency Modulation (IFM) amplifier?

A

Provides additional output power capabilities for optimum SINCGARS transmissions.

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4
Q

What communication functions are available on the EMERGENCY panel?

A

GUARD, XPNDR, and ZEROIZE

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5
Q

Where would you look to determine what radio the other crewmember is transmitting on?

A

RTS Indicator on EUFD

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6
Q

Where are the Radio Transmit Select (RTS) controls located?

A

Cyclic and EUFD

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7
Q

How can you re-select the previously used frequency?

A

Select Swap Control on the EUFD.

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8
Q

How would you know if the IFM is turned off?

A

No Power Status symbol (H,M,L) is displayed on FM1 line on EUFD.

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9
Q

How do you disable monitoring of specific radio?

A

Pull the push/pull pin on the CCP for the specific radio.

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10
Q

How can you avoid erasure of internal Comsec from the APX-123 Transponder when changing its internal battery?

A

Apply power (AGPU or APU) while changing the battery.

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11
Q

Which Pilot radio becomes the default radio in the CCP FALLBACK mode?

A

VU2

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12
Q

The VU1 provides what two bands of communications?

A

VHF and SATCOM

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13
Q

What is the indication that a radio has been tuned manually on the EUFD?

A

MAN (manual) is displayed on the EUFD.

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14
Q

A majority of the components in the COMM system interface via what major bus?

A

MIL-STD-1553B Multiplex (MUX BUS)

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15
Q

COMM mission parameters can be rapidly loaded into the system via what removable device?

A

Solid State Recording Device (SSRD)

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16
Q

Digital signal processing with low noise audio amplification, switching circuits, and automatic audio level control takes place where?

A

Communication Interface Unit (CIU)

17
Q

The COMM System is composed of what 8 components?

A

ICS, ARC-201D (x2)(FM1 and FM2), ARC-231(x2)(VU1 and VU2), IDM, APX-123 Combined Transponder, BFT-AVN

18
Q

The whip antenna is used by what two radios?

A

FM1 and VU1

19
Q

What is HPA? What does it do?

A

High Power Amplifier. Amplifies SATCOM output to low (100 watts) or high (125 watts)

20
Q

How many cryptos are available per radio?

A

19

21
Q

Do you have to wait until the VU2 power up BIT is complete before you apply AC Power (APU or AGPU)?

A

Yes. VU2 will not connect to the Data Bus otherwise

22
Q

What provides hold up power for FM1 and FM2 when aircraft power is removed?

A

Battery Box

23
Q

What powers the FM1/FM2 battery box?

A

Five 1.5V C-Cell Batteries

24
Q

Is the battery box shared between FM1 and FM2?

A

Yes

25
Q

The left wing wingstation uses which crewstation’s master volume knob?

A

CPG

26
Q

The right wing wingstation uses which crewstation’s master volume knob?

A

PLT

27
Q

Can you eliminate all noise by lowering the master volume all the way?

A

No. Master Warnings, Cautions, and Advisory audio tones can still be heard.

28
Q

How do you adjust brightness on the CCP?

A

In DAY mode use the brightness knob on the right MPD. Otherwise use the primary lighting knob.

29
Q

How do you change the time displayed in EUFD?

A

DMS UTIL page or TSD UTIL page

30
Q

How many modes can the APX-123 Transponder (CPX) be placed in? What are they?

A

There are 7 modes: 1, 2, 3/A, 4, C, S, and 5

1, 2, 3/A have emergency and IDENT function

31
Q

What are the major components of the AN/ARC-201D (FM1)?

A

IMF Amplifier, Battery Box, Antenna Diplexer, Whip Antenna, Remote Receiver/Transmitter

*Shares whip antenna with VU1 via the diplexer

32
Q

What are the major components of the AN/ARC-201D (FM2)?

A

Remote receiver/transmitter, Battery Box, Blade Antenna

33
Q

What are the major components of the AN/ARC-231 (VU1)?

A

Whip Antenna, UHF SATCOM Antenna, Receiver/Transmitter, HPA, LNA, Diplexer

*Does not offer freq. hopping
*Shares the whip antenna with FM1 via the diplexer

34
Q

What are the major components of the AN/ARC-231 (VU2)?

A

VHF and FM Antenna, UHF Antenna, Receiver/Transmitter

(V.A.T. F.U.R)

35
Q

What are the major components of the AN/APX-123 (CXP) Transponder (XPNDR)?

A

Transponder Receiver/Transmitter, Transponder Mount, Two L-Band Dipole Antennas (Top FWD, Bottom AFT)

36
Q

What are the major components of the Blue Force Tracker System (BFT-AVN)?

*will have separate class on topic at later date

A

L-Band SATCOM antenna for non-secure data

*Power output is 60 watts
*will have separate class on topic at later date

37
Q

What are the three protocols that are supported by the IDM?

A

Longbow (L), Tactical Internet (TI), Private Net (P)

38
Q

What is the IDM?

A

A high-speed digital data link modem capable of transferring near real-time mission and targeting data.

*NOT A TRANSMITTER. Provides signal via Frequency Shift Key (FSK) similar to voice