2-52.
2-53.
2-54.
2-55.
The intelligence (data bits) in a data
tone is stored by which of the following
methods?
1 .
Phase shifting the tone by a
predetermined amount with respect
to the following frame
2 .
Phase shifting the tone by a
predetermined amount with respect
to zero degrees
3 .
Phase shifting the tone by a
predetermined amount with respect
to the preceding frame
4.
Increasing or decreasing the
amplitude of the data tone with
respect to the preceding frame
During receive operations, exactly how
many EDAC bits are extracted from the
received data tones?
1 . O n e
2 . T w o
3. Five
4 . S i x
The EDAC bits enable the DTS to
correct a total of how many received bit
errors?
1 . O n e
2 . T w o
3. Three
4 . F o u r
When operating the Link-11 with a
UHF radio set, you should place the
SIDEBAND SELECT switch in what
position only?
1 .
LSB
2 .
USB
3 .
DIV
4 .
AUTO
2-56.
With Link-11 transmitting on the HF
range and the sideband select switch set
to the AUTO position, which of the
following priorities are used by the
DTS to find the data word with no
errors to send to the computer?
1 .
LSB, USB, DIV
2 .
LSB, DIV, USB
3 .
DIV, LSB, USB
4 .
DIV, USB, LSB
2-57.
The Link-11 radio set is in the transmit
mode when the key line is clear.
1. True
2. False
2-58.
Which of the following conditions
would NOT be a valid reason for
changing the unit functioning as NCS in
a Link-11 net to improve net
communications?
1 .
The current NCS has one PU
address entered wrong
2 .
The current NCS has poor receiver
sensitivity and is polling on top of
PU responses
3 .
Several PUS are in a propagation
shadow
4 .
Several PUs are out of range of
the current NCS unit
2-59.
Changing frequencies will always solve
Link-11 problems.
1 .
True
2 .
False
17
