1-47.
When does the XMTR OFF indicator
illuminate on the C-9245/ARC-161?
1. First 5 minutes of initial
power up
2. Operating frequency change less
than 1 Mhz
3. System fault that affects the
transmitter
4.
BLANKER ON deselected
1. SIG CLR
2. PWR/FILL
3. KY-75 RCU
4. ALARM
1-48.
What switch on the C-9245/ARC-161
sets the transmitter for high-power
output?
1. COND
2. RESET
3. SQ OFF
4.
BLANKER ON
1-49.
What switch on the C-9245/ARC-161
permits AHE transmission and
reception?
1. AME
2. COND
3. RESET
4. MODE
1-50.
What component of the AN/ARC-161 HP
radio system provides Impedance
matching between the antenna and
the receiver transmitter?
1. CU-2070/ARC
2. AM-6561/ARC-161
3. RT-1100/ARC-161
4. C-9245/ARC-161
1-51.
What component of the AN/ARC-161 HF
radio system provides a spark gap
to protect the radio if lightning
strikes the long-wire antenna?
1.
CU-2070/ARC
2.
AM-6561/ARC-161
3. RT-1100/ARC-161
4.
C-9245/ARC-161
1-52.
What type of mount are the top
mounts for the HF long-wire
antennas?
1. Fixed
2.
Breakaway
3. Feed-through
4. Movable
1-53.
What switch on the TSEC/KY-75 RCU
selects the storage area when the
key Is loaded in the KY-75?
1-54.
What component of the AN/ARC-161 HF
radio system has a mic/headset
connection for emergency and
maintenance operation of voice and
keying signals?
1.
CU-2070/ARC
2. RT-1100/ARC-161
3. AM-6561/ARC-161
4.
C-9245/ARC-161
1-55.
Which of the following radio
systems may be used to transmit and
receive data link?
1. HF-1, UHF-1, and UHF-2
2. HF-2, UHF-1, and UHF-2
3. HF-1, HF-2, and UHF-1
4. HF-1, HF-2, and UHF-2
1-56.
What component of the data link
system converts serial digital data
into audio tones for transmission
over a voice radio?
1.
PP-6140/ACQ-5
2. C-7790/ACQ-5
3.
CV-2528/ACQ-5
4. RT-1254/ACQ-5
1-57.
What unit converts 30-bit parallel
binary computer data words Into
26-bit serial data transmission
language?
1. Conmunications switching matrix
2. Communications secure switching
matrix
3. Communications interface No. 1
4. Communications interface No. 2
1-58.
Who has the primary responsibility
for the hardware setup of the data
link system?
1. COTAC
2. TACCO
3. NAV/COMM
4. SENSOR 3
5
