ATDI Government Services, LLC offers services to support the spectrum management and spectrum engineeering needs of the Naval Sea Systems Command, Naval Air Systems Command, Space and Naval Warfare Systems Command, Naval Supply Systems Command, Military Sealift Command, Naval Facilities Command, Strategic Systems Programs, Office of Naval Research, and the United States Marine Corps.

We fully comply with SeaPort-e statement of work (SOW) requirements in 3 functional areas in Zone 2:

  • Modeling, Simulation, & Analysis Support;
  • Software Engineering, Development, Programming, & Network Support; and
  • Technical Training Support.

Our Capabilities

Spectrum modeling, simulations, and analyses - ATDI’s staff has decades of experience in spectrum modeling, simulations, and analyses to assist the Department of Navy's endeavor to ensure spectrum support for its spectrum-dependent systems and protect these systems from interference. Below are some examples of ATDI’s past efforts:

  • Performing predictive modeling studies for electromagnetic, Doppler, and reflective interference from a proposed wind farm near the Naval Air Station in Fort Worth, TX (NAS Fort Worth) to tactical air navigation (TACAN) system, precision approach radar (PAR), and Digital Air Surveillance Radar (DASR);
  • Performing interference evaluation and mitigation analyses between various analog radar systems as well as navigational aids for Naval Air Station-based aircraft and wind turbines deployed around the United States;
  • On behalf of the Department of the Interior’s Office of the Chief Information Officer/Enterprise Infrastructure Division/National Radio and Spectrum Program Management Office (DOI), developing as software tool that models Long-Term Evolution (LTE) networks, federal earth station receiver, and fixed point-to-point microwave systems and simulates interference from LTE user equipment into federal earth station receivers and microwave receivers;
  • Modeling radio frequency (RF) signal propagation over diverse terrain at terrain resolutions down to the sub-meter level using off-the-shelf terrain datasets and custom project-specific datasets;
  • Performing measurements and simulations to assist with the evaluation and network planning of the US Coast Guard’s (USCG) medium frequency (MF) and high frequency (HF) Global Maritime and Distress and Safety System (GMDSS);
  • Performing integration analysis for the USCG’s HF sites and the US Customs and Border Protection’s (CBP) Customs Over-The-Horizon Enforcement Network (COTHEN) and creating an optimized network topology;
  • Conducting large RF coverage, interference, and optimization analyses in the MF, HF, very high frequency (VHF), ultra high frequency (UHF), and super high frequency (SHF) bands for various government and commercial clients, including USCG and DOI;
  • Developing and commercializing software for the design, analysis, regulation, modeling, planning, and management of radio frequency (RF) networks operating between the frequencies of 10 kHz and 450 GHz;
  • Implementing spectrum management/spectrum engineering standards, methodologies, and recommendations from the National Telecommunications and Information Administration (NTIA), Telecommunications Industry Association (TIA), Federal Communications Commission (FCC), European Telecommunications Standards Institute (ETSI), the International Telecommunication Union (ITU), and other RF standards and recommendations into commercial-off-the-shelf (COTS) software tools.

Software engineering, development, programming, and network support - As the designers and developers of Spectrum-E and other ATDI software (e.g., HTZ Warfare and ICS telecom), our staff is well-versed in software engineering, development, coding, testing, delivering, and supporting algorithms, programs, and software (source code and executables). Spectrum-E, which was launched in May 2012, clearly demonstrates our software skills and technical expertise. By leveraging over 20 years’ worth of ATDI expertise in developing RF engineering software tools with the Association of Public Safety Communications Officials International’s (APCO) extensive knowledge in public safety spectrum management, ATDI staff developed a landmark web application for spectrum engineering that is compliant with FCC and TIA standards for electromagnetic compatibility analysis and frequency nomination for public safety services.

Technical training support - Our staff’s extensive RF backgrounds enable ATDI to provide both general and specialized training on spectrum-dependent concepts and technologies to telecommunications and spectrum management organizations around the world. ATDI’s general training courses are focused on RF fundamentals, which include radio wave propagation through free space, diffraction, absorption, multipath, sub-path attenuation, and terrain effects. Advanced courses are tailored to a customer’s specific needs and vary based on the projects that customers are working on. Examples of past customer-defined topics include

  • Radar principles, e.g., radar signal, illumination, reflection, range of detection, false target, Doppler effect, interference, jamming, etc.,
  • Electromagnetic compatibility assessment;
  • Land mobile radio considerations, e.g., simulcast delay spread, inter-symbol interference, etc.;
  • HF skywave analysis;
  • Military jamming analysis;
  • Network interference considerations;
  • EMI scenarios;
  • Microwave link budget design, backhaul design, interference calculations, antenna discrimination, interference objectives, etc.;
  • VHF/UHF spectrum management; and so forth.

We provide training (face-to-face or using GoToMeeting™ technology), dedicated support (via phone, email, GoToMeeting™, or site visits either at ATDI’s office or the customer’s office), and maintenance (i.e., bug fixing, software upgrades, and manual updates) for all ATDI commercial off-the-shelf (COTS) software. Our support staff has exhaustive knowledge of our COTS software since they use the software themselves to perform a wide range of RF analyses. Since our support staff are expert users of the software, they can usually provide answers on the spot. Moreover, our staff has accrued extensive experience in installing our COTS software in a broad range of information technology (IT) environments since the IT environment for each of our federal customers tends to be unique. As a consequence, our staff is adept at assisting our customers with installations when our customers opt to undertake the task themselves.

Our Quality Assurance Program

ATDI’s management approach toward the delivery of software simulation, software engineering, and training services is comprised of the attributes necessary to address all potential contractual and technical delivery requirements. These attributes include

  • Contract level program management and technical oversight;
  • Management processes and controls tailored to the complexity of each customer requirement; and
  • Functional support services to support the program team in meeting all administrative and financial requirements.

ATDI’s management approach has been developed over the delivery of various contracts for the provision of software simulation analysis services, software training services, and software development services over the past 17 years. This management approach has served ATDI and its customers in the federal government sector with on-time and on-budget delivery of quality services.

Key Personnel

For information on our key personnel, please click here.

Point of Contact

For information related to the SeaPort-e program and customer satisfaction with the services performed, please contact Clara Yang at