ASSIGNMENT 5
Textbook Assignment: “Link-11 Fault Isolation,” chapter 5, pages 5-17 through
5-19 (continued); “Link-4A,” chapter 6, pages 6-1 through
6-6; and “New Technology in Data Communications,” chapter 7,
pages 7-1 through 7-6.
5-1.
When the operator enters PU 00
into the PU address field of
the spectrum display, what
effect, if any, will it have on
the operation of the LMS-11?
1.
00 is an illegal address;
therefore, no data will be
displayed
2.
The LMS-11 will continuously
update the display for each
unit in the net
3.
The LMS-11 will update the
display for NCS only
4.
No effect; the LMS-11 will
continue to update the last
legal address entered
5-2.
Carrier suppression can only be
tested when the Link-11 system
is operating in which of the
following modes?
1.
Net Test
2.
Net Sync
3.
Roll call
4.
Broadcast
5-3.
When reading the LMS-11
spectrum display, the
technician notices that only
the 605-Hz tone and the 2195-Hz
tones are displayed. Which of
the following setup entries
would cause this display?
1.
The RESTRICT field set to
preamble only
2.
The RESTRICT field set to
data only
3. The PU field is set to a
unit not in the net
4.
The SIDEBAND SELECT is set
to USB only
5-4.
The CDS computer outputs serial
digital data to the Link-14A
DTS.
1.
True
2.
False
5-5.
Link-4A is used to transmit
which of the following types of
information?
1.
2.
3.
4.
High-speed computer-to-
computer tactical
information
Tactical information from a
CDS ship to a non-CDS ship
Aircraft control and target
information
All of the above
5-6.
Link-4A data is transmitted by
using which of the following
methods?
1.
Frequency-shift keying
2.
Phase-shift keying
3.
Audio frequency tone shift
4.
Quadrature differential
phase-shift keying
5-7.
What is the maximum number of
aircraft that can be controlled
by a single Link-4A controlling
station?
1.
25
2.
50
3.
75
4. 100
5-8.
Aircraft control messages from
the Link-4A controlling station
are developed by the CDS
computer using which of the
following types of information?
1.
Radar-derived target data
2.
Reply data from aircraft
3.
Other sources of tactical
information
4.
All of the above
5-9.
Link-4A uses which of the
following frequency bands for
data exchange?
1.
HF only
2.
UHF only
3.
VHF only
4.
Both UHF and VHF
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