3-31.
To enable the DTS to detect
frame transitions during the
preamble, the 2915-HZ sync tone
is phase shifted how many
degrees
at each frame?
1.
90
2.
180
3.
270
4.
360
3-32.
The phase reference frame of a
Link-11 header performs which
of the following functions?
1.
Provides synchronization
between the DTS and the CDS
computer
2.
Provides a time reference
for the DTS
3.
Provides a time reference
for the radio
4.
Provides the reference to
extract the data in the next
frame
3-33.
During a receive cycle, the
start code causes which of the
following actions?
1.
The CDS computer to send the
prepare to receive data
interrupt
2.
The DTS to send the prepare
to receive data interrupt
3.
The CDS computer to send the
prepare to transmit data
external function
4.
The DTS to send the prepare
to transmit data interrupt
3-34.
Exactly how many data bits are
contained in each Link-11
information frame?
1. 18
2. 24
3. 30
4. 32
3-35.
The control stop code is
generated by which of the
following units?
1. NCS only
2.
Picket station only
3.
Either NCS or a picket
station, indicating the end
of a control message
3-36.
During a receive cycle, the
stop code (control or picket)
causes which of the following
actions?
1. The CDS computer to send the
end of data interrupt
2. The DTS to send the end of
data external function
3. The CDS computer to send the
end of receive interrupt
4. The DTS to send the end of
receive interrupt
3-37.
A call-up, or interrogation
message, consists of a total of
how many frames?
1.
Five
2.
Six
3.
Seven
4.
Eight
3-38.
The two frames following a
control stop code indicate
which of the following?
1.
The address of the NCS
2.
The next picket address in
the roll call
3.
The end of the NCS message
4.
The last address
interrogated
3-39.
A picket reply message is sent
in which of the following
sequences?
1.
Preamble, phase reference,
data, stop code
2.
Preamble, phase reference,
start code, data, control
stop code
3.
Preamble, phase reference,
start code, data, picket
stop code
4.
Phase reference, preamble,
start code, data, stop code
3-40.
The DTS operates in full duplex
when it performs which of the
following operations?
1.
System testing
2. Net Test
3. Normal operations
4.
Short Broadcast
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