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SBOLC WIN-T Exam Questions and answers Latest 2024/25 RATED A+
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SBOLC WIN-T Exam Questions and answers Latest 2024/25 RATED A+
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SBOLC WIN-T Exam Questions andanswers Latest 2024/25 RATED A+
WIN-T - Warfighter Information Network-Tactical
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-The Army's fully-mobile, tactical network portion of the DOD Information Network-Army
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(DODIN-A)
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II INC 1 - Networking at the halt
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II INC 2 - Networking on the move
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II What are some benefits of SATCOM? - -SATCOM allows for service over the Polar
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II Regions, the oceans, and the remote areas of the world. II II II II II II II II II II
-SATCOM provides global connectivity to widely dispersed small and mobile forces.
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-SATCOM acts as a network extension and provides long-haul communications to areas
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where terrestrial architecture may be insufficient or where line of sight equipment is
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inadequate.
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II True or False: Signal latency is a minor concern in satellite communications, so
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II geographic and meteorological factors play an important role in choosing teleports. -
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II FALSE: Signal latency is a MAJOR concern in satellite communications, so geographic
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II and meteorological factors play an important role in choosing teleports.
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II Benefits of WIN-T - -On-demand, pre-positioned links to DISN services.
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-Automatic routing and information transfer over the most effective SATCOM network.
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-The Wideband Global SATCOM (WGS) allows for cross-banding for communications
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between dissimilar SATCOM systems and frequency bands(C band, X band, Ku band,
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and Ka band).
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II DOD Gateways - -Gateways give tactical terminals access to DISN services regardless
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II of their deployment location.
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-DOD gateways are located across the globe to offer gateway entry points close to
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warfighters in all theaters.
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-DOD gateways provide long-haul network transport and connections from the deployed
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tactical network to the strategic infrastructure.
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, II Satellite Footprint - -The area of the earth's surface covered by the satellite antenna's
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II beam pattern within the field of view of the satellite's transmitters or sensors.
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-Satellite transmissions can cover 1/3 of the earth's surface
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II What are the three types of coverages? - -Earth Coverage
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-Area Coverage II
-Narrow Coverage II
II Earth Coverage (EC) - Uses an EC horn antenna to cover most of the earth's surface
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II visible from the satellite, normally equal to the footprint.
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II Area Coverage (AC) - Uses a steerable dish or multi-beam antenna to cover areas of
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II concentrated users that often deploy small, mobile or transportable earth terminals (I.e.
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II ships, aircraft, and ground tactical terminals).
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II Narrow Coverage (NC) - Uses spot beam antenna to cover a confined coverage area
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II containing small earth terminals or small areas generating large volumes of military
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II communications traffic. II
II Satellite Communications - -Satellite transmissions can cover 1/3 of the earth's surface
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-Each satellite is equipped with various "transponders" consisting of a transceiver and an
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antenna tuned to a certain part of the allocated spectrum
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-The incoming signal is amplified and then rebroadcast on a different frequency
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-One channel dedicated to transmitting and one channel for receiving
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II Different Types of Satellites - -Communications Satellite
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-Satellite TV II
-Astronomic Satellites or Space observatories II II II II
-Remote Sensing Satellite II II
-GPS
-Reconnaissance Satellite II
II Satellite Orbits - -LEO: Low Earth Orbit (100 - 1500KM)
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-MEO: Medium Earth Orbit (5000 - 10000KM)
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, -GEO: Geostationary Earth Orbit (36000) II II II II
-HEO: Highly Elliptical Orbit II II II
II Geostationary - -Synchronized with an area of earth below it II II II II II II II II II II II
-Centered on the equator II II II
-Approximately 35,786 km above the earth's surface II II II II II II
-Orbit period = 1 day. II II II II
II Orbits Rotation: Perigee vs Apogee - -The point of the orbit closest to Earth is called
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II Perigee
-The point farthest from Earth is known as Apogee
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-Perigee is always 180 degrees from Apogee II II II II II II
-In communications, perigee is the least desirable time to access a satellite.
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-Although its proximity means that the signal path is short, the fact that the satellite is
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rapidly moving means that it is accessible for only a brief time.
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II GBS - Global Broadcast Service
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II WGS - Wideband Global SATCOM II II II II II II
II SATCOM: Control Segment - -Satellite control maintains the health and welfare of the
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II satellite.
-Payload and transmissions control involve monitoring, operating, allocation of the
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satellites payload, signal power, antenna orientation, and link monitoring.
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-The operational management planning hardware and software at a Regional Satellite
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Support communications Center (RSSC) and the satellite command and control centers
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used to perform satellite, payload, and transmissions control.
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Radio Frequency Bands - Letter Designation: FREQ Range/Band
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P: 225-390 MHz/VHF/UHF
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L: 1-2 GHz/UHF
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S: 2-4 GHz/UHF/SHF
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C: 4-8 GHz/SHF
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X: 8-12 GHz/SHF
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Ku: 12-18 GHz/SHF II II
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