LinQuest develops custom software applications to support the acquisition, operation, and testing of complex DoD and commercial systems. LinQuest applications support mission planning; decision support; logistics; and modeling, simulation, and analysis (MS&A) of cutting-edge systems and subsystems.

Modeling and Simulation

Global Positioning System Interference and Navigation Tool (GIANT)

GIANT is regularly upgraded to reflect the continuing evolution of the GPS enterprise architecture and its augmentations, GNSS, Navwar, and network-centric technologies.


  • Graphical user interface for setup and scenario visualization
  • Detailed databases for platforms, user equipment, satellites, pseudolites, signals, jammers, and interference sources
  • Advanced anti-jam antenna models
  • Terrain effects
  • Import/export to multiple formats for post-processing and visualization
  • Real-time data feeds and constellation status
  • Application Programming Interface (API)
  • Live, virtual, and constructive applications
  • Navigation Warfare analysis
  • JCIDS/Analysis of Alternatives support
  • GPS analyses
  • Test and evaluation support
  • Operations support (GPS Operations Center (GPSOC), Joint Navigation Warfare Center (JNWC), and Air Operations Center (AOC)

The Global Positioning System (GPS) Interference and Navigation Tool (GIANT) is a mission-level, many-versus-many, constructive and repeatable GOTS simulation tool that computes GPS/Global Navigation Satellite Systems (GNSS) and other navigation system performance and mission impacts in a benign or electronic combat environment.

GIANT is used to determine navigation performance and its impact upon air-to-ground or surface-to-surface operational effectiveness.

Originally created in 1996 to support the Navwar Analysis of Alternatives, GIANT has been applied to hundreds of analyses by numerous civilian and military user communities in support of research and development, acquisition programs, test and evaluation, training, concept of operations development, mission planning, and operations.
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Airborne Broadband Link Evaluator (ABLE)

ABLE performs detailed point-by-point link budget calculations to evaluate forward and reverse link data rates over a region. Several features are provided to allow analysis of system design, coverage, and capacity


  • Multiple terminal antenna and waveform models
  • Ability to add new waveforms
  • GXT pattern import to allow use of commercial satellite provider beam data
  • Ability to save, recall, and easily change any parameter to see impact on system coverage areas
  • Google Earth export allows rich graphical output that can be easily manipulated and shown to customers
  • Airborne satellite communication network design
  • Selection of satellites, transponders, and carrier parameters
  • Network/terminal performance characterization

ABLE is a GUI-driven simulation tool that provides global coverage planning, analysis, and visualization capability for mobile terminals using broadband links on commercial transponded satellites. ABLE supports system analysis and design of satellite communications networks with terrestrial, airborne, and maritime terminals.

Originally developed for airborne applications, ABLE is also being expanded to allow analysis of maritime and terrestrial terminals. ABLE was developed using a modular approach, which allows it to be easily modified to support both existing and emerging waveforms, satellites, and terminals.

ABLE performs detailed point-by-point link budget calculations to evaluate forward and reverse link data rates over a region. Several features to allow analysis of system design, coverage, and capacity.

MILSATCOM End-to-End Simulation Environment (MEESE)

MEESE provides high fidelity Layer 1 and 2 modeling, simulating realistic effects of the communications chain. With system and segment performance data generated, design decisions and issues resolution can be made with higher confidence throughout architecture concept, development, and operational phases.


  • Waveform definition and modeling
  • Bit-error-rate and performance analysis
  • Effects of channel fading, jamming, and scintillation
  • Nuller configuration (anti-jamming performance)
  • Interference performance analysis
  • Non-linear effects
  • Phase noise degradation
  • Link performance
  • Synchronization
  • Dynamic bandwidth resource allocation evaluation
  • Architecture and requirement development
  • Segment requirement allocations
  • System performance and trade analysis
  • Requirement verification process
  • Baseband testing prior to launch
  • On-orbit test and operational support
  • Anomaly duplication and resolution
  • Planning tool development

MILSATCOM End-to-End Simulation Environment (MEESE) is a hardware and software-based simulation platform that models the various components of end-to-end satellite communications systems. Initially developed for Milstar, MEESE has now been expanded to model the next generation of satellite systems including AEHF and future concepts. Its open architecture and modular approach permits modeling other satellite communications systems in a relatively straightforward manner. This modular architecture also allows us to quickly integrate component models supplied by developers for evaluation or comparison to other solutions.

Terminal Control Simulator (TCSIM)

With TCSim, valuable resources are saved, communication planners receive effective terminal control training, and the MPSS has efficient preliminary protocol test capabilities.


  • Windows compatible software application
  • Simulates terminal and payload functions
  • Terminal interface protocol simulation
  • Models CC and member terminal functions
  • Models EHF resource constraints
  • Precedence and fencing enforcement
  • Privilege role support
  • Supports legacy and upgraded SMART-T modeling
  • Supports FAB-T interface modeling
  • TCP/IP and RS-232 interface connection
  • Mission planning software testing
  • EHF communication planner training
  • Terminal control protocol and image analysis

Terminal Control Simulator (TCSim) simulates Milstar and AEHF Payload to Terminal Access Control Protocols and the SMART-T to Terminal Control software communications link. Without TCSim, EHF Communication Planner training and MPSS Terminal Control testing requires employing valuable system resources, use of other less efficient scripting tools, or less dynamic protocol implementation tools.

Initially developed for the Army Communication Planner Training Course as a Milstar terminal control training simulator, TCSim has since been expanded for use in support of AEHF XDR terminal control. Its satellite and terminal simulation capability is useful in both training and planning tool development environments.

TCSim has been used successfully in the classroom to train EHF communication planners on terminal control procedures and as an informal testing aid for the terminal control module of the MPSS. TCSim simulates LDR/MDR/XDR protocols to support Milstar and AEHF terminal control functionality.

Jamming Evaluation Tool (JET)

JET is a high-level link budget tool that estimates the per- terminal and aggregate impacts of jamming and allows the user to assess the tradeoffs and benefits associated with the use of a protected satellite system.


  • Multiple terminal antenna and waveform models
  • Ability to add new waveforms
  • GXT pattern import allows use of commercial satellite provider beam data
  • Ability to save, recall, and easily change any parameter to see impact on system coverage areas
  • Google Earth export allows rich graphical output that can be easily manipulated and shown to customers
  • Ability to save, recall, and change parameters to see impact of any variable on system performance under jamming
  • Outputs show benign and jammed per-terminal data rate, Pr/No, link margin, and aggregate results for entire transponder

Jamming Evaluation Tool (JET) is a GUI-driven simulation tool that evaluates the impact of jamming on transponded satellite communications. JET estimates the benefit of traditional anti-jamming (AJ) measures including frequency hopping, partial payload processing, and antenna-based AJ approaches. The graphical channel/jammer plot shows the location and magnitude of jammers and calculates benign and jammed transponder bandwidth efficiency (b/s/Hz).

Mission Planning and Analysis

SATCOM Evaluation Tool (SET)

SET currently models the full range of EHF protected communications systems including AEHF, EPS, Milstar, and UFO-E/EE.


  • Windows compatible software application
  • Milstar, AEHF, UFO/E, EPS system modeling
  • Graphical map and data entry GUIs
  • Flexible, data-driven approach
  • Large scenarios (1,000+ networks; 10,000+ terminals)
  • Model multiple orbit types (geosynch, Molniya)
  • Provided with defined satellite and terminal types
  • System resource capacity analysis
  • Link budget analysis
  • User-friendly
  • Requirements analysis/verification
  • Architecture trade studies
  • Policy analysis
  • What-if analysis in support of MCSW/MCPG, AFSPC, DISA, and the Milstar/AEHF SSE.

The SATCOM Evaluation Tool (SET) is a multi-constellation coverage and capacity analysis tool for protected SATCOM systems. It is used to analyze the coverage, configuration, and loading capacity of satellite communications systems, including Milstar, Advanced EHF, UFO-E/EE, and EPS.

SET models the earth terminals, satellite constellations, and communications links in a defined loading scenario. Based on the development of LinQuest Corporation's flexible communications resource modeling framework, SET accepts an operator-defined scenario input and executes a sequence of loading functions on that data.

The result of SET loading processes is a realistic assessment of expected terminal and satellite capacity. SET allows the operator to easily modify the scenario input data and re-load for quick turn-around analyses and trade studies.

Network-Centric Waveform (NCW) Engineering Tool (NCWT)

The output of the tool is a report on the bandwidth and power required to support a particular NCW network.


  • Windows-compatible software application
  • Scenario definition
  • Preinstalled terminal and commercial satellite models
  • Ku and Ka network and terminal planning
  • Traffic modeling; bandwidth and power calculations
  • Multiple bandwidth segments
  • Network-centric waveform modem modeling
  • Modem file output
  • NCW modem and network planning
  • Power and bandwidth estimation
  • Satellite resource provisioning
  • Performance analysis
  • Fielding support
  • Trade studies and analysis of alternatives
  • Operations support

The Network-Centric Waveform (NCW) Engineering Tool (NCWT) is an engineering software tool designed to analyze NCW networks and estimate the satellite power and bandwidth requirements needed to support the NCW networks. Developed for the Department of Army and PM WIN-T, NCWT is being used in support of the prophet program and WIN-T developmental test.

The bandwidth and power are calculated using terminal power, terminal location, satellite performance, traffic characteristics, and other statistical values.

Acquisition and Logistics

Acquisition Logistics Performance Scorecard (ALPS)

The ALPS.NET was created with a focus on providing a comprehensive logistical support system with an emphasis on the end users' ease of use. Easy-to-interpret data dashboards and detailed reports provide consistent reporting and analysis capabilities.


  • Multi-level user security, Security logging
  • Parts, assemblies (e.g., LRUs), and asset configuration/management
  • User and unit management and configuration
  • Asset 10/20 Maintenance (formally called RESET)
  • Asset configuration management and variant modeling
  • IAVA patch management and distribution
  • Automatic email distribution
  • Modification work orders (warranted/non-warranted)
  • Total package fielding
  • Asset kits/ECP management and upgrade modeling
  • End-user training management
  • Comprehensive suite of logistics management functions providing performance-based logistics
  • Greatly reduces the administrative burden on acquisition managers

The Acquisition Logistics Performance Scorecard (ALPS) is a comprehensive suite of logistics management functions offering a centralized data store accessible worldwide focused on providing performance-based logistics (PBL) management. The ALPS.NET represents a considerable advancement in technology from its predecessor and has been redesigned from the ground up using the most advanced web-centric technologies and techniques.

ALPS.NET improves overall system asset availability by enhancing the process used to perform complete asset management. ALPS.NET greatly reduces the administrative burden on the acquisition managers and joint warfighter by reducing the costs associated with logistically fielding and supporting a system throughout its entire lifecycle.

The ALPS.NET is 100 percent U.S. government-owned and Certificate of Networthiness (CON)-certified. It has been operationally supporting warfighters and acquisition managers for more than 10 years and has a solid reputation of efficient and effective support through a centrally managed system.

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