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