AH-64E > RCOM > Flashcards

RCOM Flashcards

(70 cards)

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1
Q

Interface MUX Bus

A

Chan 1 A & B

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2
Q

CIU provides

A

-Low noise amplifying
-Switching circuits
-Auto audio level control

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3
Q

AH64 communication systems

A
  • ARC-231(VU1 VHF/SATCOM)

-ARC-231 (VU2 VHF/UHF/FM)

-SINGARS 201D (FM1 and FM2)

-Improved Data Modem (IDM)

-Transponder (XPNDR)

  • BFT-AVN
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4
Q

How many crypto net variables per radio?

A

19

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5
Q

VU1 Provides 3 things

A

-Secure and non secure data comms

-Secure and non secure SATCOM

-19 CNV per radio

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6
Q

VU1 - VHF includes capability to do what?

A

Adjust power output to provide low, medium, and high transmit power levels

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7
Q

VU1 transmits how many watts out?

A

100 watts (low)
125 Watts (high)

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8
Q

LNA

A

Low Noise Amplifier - amplifies received signal

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9
Q

VU1 talks on what 2 antennas?

A

Whip
SATCOM

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10
Q

VU1 consists of the following LRUs

A

-SATCOM pre amp (LNA)

-High power amplifier

-Antenna diplexer

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11
Q

VU2 Provides

A

-Secure and non secure voice/data operations VHF, UHF, FM

-FM SINGARS freq hopping, UHF have quick

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12
Q

When does the emergency control head come on?

A
  • Batt power
  • Dual generator
  • Training mode
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13
Q

VU2 consists of what LRU?

A

-VHF and FM antenna
-UHF antenna
-Receiver/Transmitter

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14
Q

AN/ARC 201 D SINGARS MHz band?

A

30.00 to 87.975 MHz

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15
Q

ARC 201D Remote receiver/transmitter does what?

A

-Precision clocks, switching patters, hopping rates

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16
Q

FM1 provides and IFM amplifier that provides what?

A

-Selectable power RF output power levels

-2.5 watts (low), 10 watts (medium), 40 watts (high)

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17
Q

If IFM (FM1) is off what watts is automatically put out by the radio?

A

10 watts

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18
Q

FM2 has a dedicated____ with ____ watts of power

A

Antenna, 10 watts

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19
Q

FM2 consists of LRU?

A

-Remote receiver/transmitter

-Battery box (shared with FM1)

-Blade antenna

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20
Q

APX-123 transponder puts out ____ watts

A

500

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21
Q

AN/APX-123 transponder utilizes ____ L-band dipole antennas for receiving and interrogating codded replies

A

2

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22
Q

transponder components

A

-Receiver-Transmitter
-Mount
-Two L-band diopel antennas

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23
Q

L band receives freq of ____ and transmits on a freq of ____ MHz

A

1030 receives
1090 transmit

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24
Q

Mode 1

A

A/C ID

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25
Mode 2
Personnel/Mission ID
26
Mode 3
Air Traffic control ID
27
Mode C
Aircraft pressure altitude
28
Mode 4
Encrypted ID (military mode with A and B)
29
Mode S
Digital data link, altitude reports, and direction
30
Mode 5
Strictly military mode provides reply to crypto coded challenge
31
Two special functions for XPNDR?
Modes 1, 2 and 3/A sends IDENT function 15-30 sec to ATC
32
BFT utilizes what band antenna?
L-band SATCOM with 60 watts output power
33
BFT components..
-LNA -Blade antenna -Transceiver
34
Improved Data Modem does what?
-Provides analog/digital data to ground and air units
35
What form is data send via IDM?
FSK
36
IDM provides how many data ports for each radio?
3
37
Digital ports are used for what?
-OTA -Secure Digital Port Block 3 secure messaging
38
IDM supports 3 types of protocols?
-Longbow -Tactical Internet (TI) -Private Net (P)
39
Longbow allows for what?
Digital communication with Longbow A/C
40
Communications Infterface Unit provides..? (general purpose)
Routing, mixing and volume control for ICS, radio and IDM radio "Heart of communications"
41
Communications Interface Unit (CIU) have what capabilities?
-Audio switching -Audio conditioning -Audio mixing -Crewmember monitor select -ICS -Voice warnings and caution tones
42
Control of CIU is done by....
Primary MP thru selections made on MPDs and CCPs
43
Communication Control Panel (CCP) provides what?
-Control and routing of all A/C audio
44
Each CCP has a dedicated ____ firewire bus interface connecting directly to CIU
1394b
45
Which radios can simultaneously monitor guard while receiving and transmitting on any other frequency?
Vu1 and Vu2
46
Which radio does not offer Frequency Hopping (FH) communication?
Vu1
47
What is the purpose of the Improved Frequency Modulation (IFM) amplifier?
Provides additional output power capabilities for optimum SINCGARS transmissions.
48
What communication functions are available on the EMERGENCY panel?
GUARD, XPNDR, and ZEROIZE
49
Where would you look to determine what radio the other crewmember is transmitting on?
RTS Indicator on EUFD
50
Where is the Radio Transmit Select (RTS) controls located?
Cyclic and EUFD
51
How can you re-select the previously used frequency?
Select Swap Control on the EUFD.
52
How would you know if the IFM is turned off?
No Power Status symbol (H,M,L) is displayed on FM1 line on EUFD.
53
How do you disable monitoring of specific radio?
Pull the push/pull pin on the CCP for the specific radio.
54
How can you avoid erasure of internal Comsec from the APX-123 Transponder when changing its internal battery?
Apply power (AGPU or APU) while changing the battery.
55
Which Pilot radio becomes the default radio in the CCP FALLBACK mode
VU2
56
The VU1 provides what two bands of communications?
VHF and SATCOM.
57
What is the indication that a radio has been tuned manually on the EUFD?
MAN (manual) is displayed on the EUFD.
58
Where can you RTS?
Cyclic, EUFD
59
SOI
Security Operation Instruction
60
How many presets?
60
61
1st preset page is what?
Most recent used
62
VHF SC
125.00
63
UHF SC
225.00
64
UHF HQ
F90.025
65
FM SC
30.025
66
IFM amplifier watts
L:2.5 watts M: 10 watts H: 40 watts
67
Transponder
AN/APX 123 (500 watts)
68
VU1, Vu2 radios
ARC 231D
69
FM1, FM2 radio
201D
70
AH-64E
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