SMART-T/V-SAT Flashcards

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Questions and Answers

What does AN/TSC-154 stand for?

Secure Mobile Anti-Jam Reliable Tactical-Terminal (SMART-T)

What is the symbology for SMART-T?

Backwards Z with E at the bottom and the 154 at the top

What frequency bands does SMART-T use for transmission and reception?

TXMT - EHF (uplink) 43.5GHz - 45.5GHz; RCV - SHF (downlink) 20.2GHz - 21.2GHz

What types of attacks is SMART-T designed to withstand?

Biological attacks Signup and view all the answers

What are the power requirements for SMART-T?

External DC power, AC power from standard 110/220 VAC generator, 12-volt batteries Signup and view all the answers

What is the maximum data rate for SMART-T?

8192 Kbps Signup and view all the answers

What are the transport options for SMART-T?

M-1097 with the pallet, Helo/Fixed wing, transport vehicles/ship Signup and view all the answers

Which of the following are configurations for SMART-T operations?

Point to point Signup and view all the answers

What is the note related to SMART-T's maximum data transmission?

The maximum data that can be passed is 2048 Kbps via CX-11230. Signup and view all the answers

What are very small aperture terminals (VSAT)?

Commercial-Off-The-Shelf Equipment (COTS) that can be installed quickly. Signup and view all the answers

How are VSATs categorized?

VSAT-S (1.2), VSAT-M (1.8), VSAT-L (2.4) Signup and view all the answers

What components are included in VSAT-S/M?

Indoor Equipment, RF Transit Case, Network Case, UPS Signup and view all the answers

What does the 303T Antenna Controller provide?

24 VDC input power and interfaces with M&C Laptop GUI software Signup and view all the answers

What is the purpose of the KA-Band SSPA?

Amplifies transmit signal Signup and view all the answers

What is the operational wind loading for a 1.2M VSAT antenna?

Operational; 30 mph, gusts to 45 mph Signup and view all the answers

Which VSAT equipment requires the most transit cases?

Large Equipment Signup and view all the answers

Study Notes

SMART-T Overview

AN/TSC-154: Secure Mobile Anti-Jam Reliable Tactical Terminal (SMART-T) enables secure, jam-resistant data and voice satellite communications.
Data rates: Up to 1.544 Mbps via EHF and 8.192 Mbps via AEHF; provides long-haul connectivity.

SMART-T Symbology

Visual representation: Backwards Z with 'E' at the bottom and '154' at the top.

Frequency Bands for SMART-T

Transmit uplink (TXMT): EHF frequency range from 43.5 GHz to 45.5 GHz.
Receive downlink (RCV): SHF frequency range from 20.2 GHz to 21.2 GHz.
Antenna: Compact, offset Gregorian design with a 4.5 FT composite reflector.

SMART-T Resilience

Designed to withstand biological and chemical attacks, jamming, detections, and electromagnetic pulses.

Power Requirements

External power: Supports AC from standard 110/220 VAC generators and utilizes 12-volt batteries for terminal operation and data retention.

Transportability Features

Configured for transport in M-1097, by helicopters, fixed-wing aircraft, and various vehicles and ships.

Operational Configurations

Modes of operation: Point-to-point, broadcast for multiple SMART-T connections, and mesh configurations.

Max Data Rate Capability

Peak data rate: 8192 Kbps with support for 4 Digital Transmission Groups (DTGs).
Typical configurations include 4 DTGs at 512 Kbps, 2 DTGs at 1024 Kbps, or 1 DTG at full capacity, with a typical operational limit of 2048 Kbps via CX-11230 due to DTG port limitations.

SMART-T Limitations

Limitations include take-off angles, obstructions (man-made or natural), and weather conditions.

VSAT Capabilities

Very Small Aperture Terminals (VSAT) use Commercial-Off-The-Shelf (COTS) equipment, with installation in under thirty minutes.
Supports Ku/Ka-band and X-band (only on VSAT L), utilizing both TDMA and FDMA multiplexing methods.

VSAT Variants

Variations include VSAT-S (1.2M), VSAT-M (1.8M), and VSAT-L (2.4M).

VSAT Equipment Logistics

VSAT Small Equipment: 5 transit cases (3 indoor, 2 outdoor).
VSAT Medium Equipment: 8 transit cases (3 indoor, 5 outdoor).
VSAT Large Equipment: Mounted on trailers comprising 3 transit cases.

Transport Methods for VSAT

Configured for transport by HMMWV, 7-ton trucks, and air transport.

VSAT-S/M Components

Indoor and outdoor components include RF transit cases, network cases, uninterruptable power supplies (UPS), SSPAs, BUCs, TLNBs, and antenna control units.

RMR 1005 Specifications

Protects TDMA modem from voltage and reference frequency damage while providing external power and reference signals.

Versa DC Power Supply

Delivers 24 VDC to the 303T controller and 48 VDC to the SSPA/BUC.

Uninterruptable Power Supply (UPS)

Provides power conditioning, backup power, and operational capabilities on standard AC or military vehicle power.

VSAT Antenna Specifications

1.2M and 1.8M antennas feature specific operational parameters, such as elevation (5-90 degrees), azimuth (±120 degrees), and wind loading capabilities.

303T Antenna Controller Specifications

Operates on 24 VDC, interfacing with M&C Laptop GUI software and providing necessary voltage to other components.

Ku TLNB Specifications

Provides complete Ku-band coverage and is tunable across three bands during normal operations while being controllable by the M&C system.

KA-Band Specifications

SSPA/BUC amplifies signals across 30-31 GHz with an output power of 50 watts.
KA-band Low Noise Block Converter downconverts frequencies to L-band while providing amplification.

Differences Between Small and Medium VSAT

Variances primarily consist of outdoor equipment size, feed assembly configurations, equipment location, and wind resistance of antennas.

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Description

Test your knowledge with these flashcards on the SMART-T and V-SAT technologies. Each card provides essential definitions and key symbols associated with the Secure Mobile Anti-Jam Reliable Tactical-Terminal systems. Perfect for students and professionals in the field of satellite communications.