Annex E06 Strategic Satellite Architecture Overview

Question 0

Uplink Freq

Answer 0

Used by SATCOM terminal to satellite

Question 1

Department of Defense Information Network

Answer 1

Globally interconnected, end to end set of info capabilities, associated processes and personnel for collecting, processing, storing, disseminating, and managing info on demand for warfighters, policy makers and support personnel

Question 2

Downlink Freq

Answer 2

Used from satellite to SATCOM terminal

Question 3

Transponder

Answer 3

Acts as a repeater in the sky, transponder receives transmissions from the ground, amplifies the signal, changes its freq and xmt the signal back to earth

Question 4

Signal to Noise Ratio

Answer 4

Proportion of usable or desired signal (S) to the noise (N), or undesired signal.

Question 5

Eb/No

Answer 5

Energy per bit to noise power spectral density ratio
Signal to Noise ratio per bit
Eb is signal energy per bit
No is the noise energy per Hertz of noise bandwidth

Question 6

Frequency Division Multiple Access (FDMA)

Answer 6

Sharing transmission channel among two or more users by assigned each to an exclusive frequency band within the channel

Question 7

Time Division Multiple Access (TDMA)

Answer 7

Allocating a discrete amount of freq bandwidth to each user, iot permit many simultaneous conversations with each user assigned a specific timeslot for xmt

Question 8

Standardized Tactical Entry Point (STEP)/Teleport

Answer 8

Entry points for tactical forces to the DOD Information Systems Network and are strategically located throughout the world

Question 9

Satellite Access Request (SAR)

Answer 9

Prepared and submitted for access to strategic satellite systems to provide worldwide connectivity in the tactical warfighting environment

Question 10

Gateway Access Request (GAR)

Answer 10

Prepared and submitted for acess to DISN IOT provide worldwide secure and non secure voice, vide, and data connectivity in the tactical warfighting environment.