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SBOLC WIN-T EXAM WITH COMPLETE
SOLUTIONS
Diversity -correct-answer--Diversity is a technique which improves the total
receive signal over any single path by combining.
-The signals may arrive at different times or arrive stronger/weaker in two or more
independent paths.
True or False: On the Troposcatter both dishes receive and transmits -correct-
answer-False: On the Troposcatter both dishes receive but only one transmits
What are factors that affect climate? -correct-answer--Latitude
-Air Pressure
-Mountain Barriers
-Elevation
-Continental Location
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-Ocean Currents
-Wind Currents
-Storms
What are the three modes of Propagation of the Troposcatter? -correct-answer--
Line of Sight
-Diffraction
-Troposcatter
Troposcatter Line of Sight Propagation -correct-answer-This mode is used when
both terminals are visible to each other and there are only minor obstruction.
Troposcatter Diffraction Propagation -correct-answer-This mode is used when the
terminals are not visible to each other but there is a common obstruction visible
to both terminals.
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Troposcatter Propagation -correct-answer-This is used when distance and/or
obstructions make line-of-sight transmission impractical. Radio waves scattered
into the atmosphere form an area of common volume where the majority of the
energy is reflected to the distant station by collision.
HI-CLOS -correct-answer-High-Capacity Line of Sight
-AN/TRC-190
-After establishing the tactical network in theater, major WIN-T nodes create a
high bandwidth line-of-sight backbone using and systems.
-Distance, terrain, and man-made obstructions are limiting factors when
employing line-of-sight transmission systems at-the-halt.
-The terminal provides alternate network transport for the baseband shelters
Whats the difference between AN/TRC-190E(v)1 and AN/TRC-190F(v)3? -correct-
answer-AN/TRC-190E(v)1
-Planning Range: 40 KM
-Data Rate: 256 Kbps - 34 Mbps
-Only one BBU/RFU
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-IP based
AN/TRC-190F (v)3
-Planning Range: 40 KM
-Data Rate: 256 Kbps -34 Mbps
-Three BBUs/RFUs (three different radios) Retrans through HICLOS
-IP based; uses an IP relay switch to differentiate radio shots with the use of
VLANs.
RFU -correct-answer-Radio Frequency Unit
RT1814/AN/GRC 245B -correct-answer-The RFU is moveable and allows for Band
1/3 Frequencies
Band I: 225 - 400 MHz
Less than 20 KM: Inside Shelter
Between 20 KM and 30 KM: Inside Shelter
Greater than 30: Base of Mast
Band III+: 1350 - 2690 MHz
Less than 20 KM: Inside Shelter
Between 20 KM and 30 KM: Base of Mast
SBOLC WIN-T EXAM WITH COMPLETE
SOLUTIONS
Diversity -correct-answer--Diversity is a technique which improves the total
receive signal over any single path by combining.
-The signals may arrive at different times or arrive stronger/weaker in two or more
independent paths.
True or False: On the Troposcatter both dishes receive and transmits -correct-
answer-False: On the Troposcatter both dishes receive but only one transmits
What are factors that affect climate? -correct-answer--Latitude
-Air Pressure
-Mountain Barriers
-Elevation
-Continental Location
,2|Page
-Ocean Currents
-Wind Currents
-Storms
What are the three modes of Propagation of the Troposcatter? -correct-answer--
Line of Sight
-Diffraction
-Troposcatter
Troposcatter Line of Sight Propagation -correct-answer-This mode is used when
both terminals are visible to each other and there are only minor obstruction.
Troposcatter Diffraction Propagation -correct-answer-This mode is used when the
terminals are not visible to each other but there is a common obstruction visible
to both terminals.
,3|Page
Troposcatter Propagation -correct-answer-This is used when distance and/or
obstructions make line-of-sight transmission impractical. Radio waves scattered
into the atmosphere form an area of common volume where the majority of the
energy is reflected to the distant station by collision.
HI-CLOS -correct-answer-High-Capacity Line of Sight
-AN/TRC-190
-After establishing the tactical network in theater, major WIN-T nodes create a
high bandwidth line-of-sight backbone using and systems.
-Distance, terrain, and man-made obstructions are limiting factors when
employing line-of-sight transmission systems at-the-halt.
-The terminal provides alternate network transport for the baseband shelters
Whats the difference between AN/TRC-190E(v)1 and AN/TRC-190F(v)3? -correct-
answer-AN/TRC-190E(v)1
-Planning Range: 40 KM
-Data Rate: 256 Kbps - 34 Mbps
-Only one BBU/RFU
, 4|Page
-IP based
AN/TRC-190F (v)3
-Planning Range: 40 KM
-Data Rate: 256 Kbps -34 Mbps
-Three BBUs/RFUs (three different radios) Retrans through HICLOS
-IP based; uses an IP relay switch to differentiate radio shots with the use of
VLANs.
RFU -correct-answer-Radio Frequency Unit
RT1814/AN/GRC 245B -correct-answer-The RFU is moveable and allows for Band
1/3 Frequencies
Band I: 225 - 400 MHz
Less than 20 KM: Inside Shelter
Between 20 KM and 30 KM: Inside Shelter
Greater than 30: Base of Mast
Band III+: 1350 - 2690 MHz
Less than 20 KM: Inside Shelter
Between 20 KM and 30 KM: Base of Mast
