Exam (elaborations)
SBOLC WIN-T QUESTIONS AND ANSWERS
- Course
- Institution
SBOLC WIN-T QUESTIONS AND ANSWERS
[Show more]
Content preview
SBOLC WIN-T QUESTIONS AND ANSWERSWIN-T - Answers -Warfighter Information Network-Tactical
-The Army's fully-mobile, tactical network portion of the DOD Information Network-Army
(DODIN-A)
INC 1 - Answers -Networking at the halt
INC 2 - Answers -Networking on the move
What are the three types of coverages? - Answers --Earth Coverage
-Area Coverage
-Narrow Coverage
Earth Coverage (EC) - Answers -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) - Answers -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) - Answers -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 - Answers --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 - Answers --Communications Satellite
-Satellite TV
-Astronomic Satellites or Space observatories
-Remote Sensing Satellite
,-GPS
-Reconnaissance Satellite
Satellite Orbits - Answers --LEO: Low Earth Orbit (100 - 1500KM)
-MEO: Medium Earth Orbit (5000 - 10000KM)
-GEO: Geostationary Earth Orbit (36000)
-HEO: Highly Elliptical Orbit
Geostationary - Answers --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 - Answers --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 - Answers -Global Broadcast Service
WGS - Answers -Wideband Global SATCOM
SATCOM: Control Segment - Answers --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.
, Radio Frequency Bands - Answers -Letter Designation: FREQ Range/Band
P: 225-390 MHz/VHF/UHF
L: 1-2 GHz/UHF
S: 2-4 GHz/UHF/SHF
C: 4-8 GHz/SHF
X: 8-12 GHz/SHF
Ku: 12-18 GHz/SHF
K: 18-27 GHz/SHF
Ka: 27-40 GHz/SHF/EHF
V: 40-75 GHz/EHF
W: 75-110 GHz/EHF
Terminal Segment - Answers -Fixed (strategic/enterprise) Department of Defense
(DOD) gateways and the regional hub node (RHN), deployable (tactical) terminals,
handheld, and portable tactical systems.
RHN - Answers -Regional Hub Node
-The Army owned fixed-facility satellite and baseband nodes that provide long haul
transport of voice, video, and mission command services to include Command, Control,
and Communications, Computers, Intelligence, Surveillance, and Reconnaissance
(C4ISR) data
-The Regional Hub Nodes (RHNs) are the premier Army regional satellite facilities that
link all Geographic Combatant Commanders (GCC) at the Tier 0 (SF), Tier 1 (SOC),
and Tier 2 (FORSCOM) level during all phases of combat operations and contingencies.
-RHNs provides deployed commanders with sufficient bandwidth to rapidly transmit the
largest video and data products to the battlefield warfighter, including Unmanned Aerial
Vehicle (UAV) streaming video, digital imagery intelligence, and mapping and weather
products and services.
-Deploys forces anywhere in the world in support of contingency operations, disaster
relief or National emergency response.
-NOTE: RHN Tiers are different from Router Tiers of WIN-T equipment.
What are some benefits of SATCOM? - Answers --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.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SUMMER2022. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.69. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80435 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now