Welcome to the May edition of the ATDI newsletter.
This month, we highlight the latest enhancements in HTZ Communications v2026.5, introducing new capabilities to improve RF analysis accuracy, propagation modelling, throughput analysis, and workflow efficiency across complex radio planning projects. We also showcase how Rio Tinto is using HTZ Communications at the Simandou mining project in Guinea to support resilient wireless connectivity across one of the world’s largest mining developments.
We also highlight the latest additions to ATDI’s high-resolution cartographic data library, including new datasets for locations such as Hartsfield-Jackson Airport, supporting accurate spectrum engineering and network planning.
This edition also includes access to our latest technical demo supporting last month’s webinar on the impact of wind turbines on aeronautical radar systems, covering interference mechanisms, operational risks, and mitigation approaches for airport and airspace environments.
Finally, with Eurosatory and Critical Communications World fast approaching, we look forward to meeting industry professionals, regulators, operators, and defence stakeholders to discuss the growing challenges surrounding spectrum management, interoperability, and mission-critical communications. If you are attending either event, we encourage you to reach out in advance to arrange a meeting with the ATDI team.
We hope you enjoy this month’s updates and look forward to speaking with many of you over the coming weeks.
HTZ continues to evolve, with new features and modifications designed to enhance the user experience, improve RF analysis capabilities, and support critical spectrum management tasks.
Calculations
Near-field Calculation Improvement
Near-field diffraction is now more accurately modelled in accordance with ITU-R P.368. This improves the modelling of obstacles close to the transmitter that affect signal strength and attenuation along the path profile.
Propagation Model: ITU-R P.1147 Update
The SSN ITU table used in the P.1147 model has been updated (2000–2026), ensuring more accurate ionospheric and propagation predictions.
Update: ITM (NTIA) Model Version Control
A new “Version 1.2” option allows users to switch between ITM model versions (v1.2.2 and v1.2), providing greater flexibility and consistency when comparing results across studies.
Advanced Vector Extensions 2 (AVX2): Method Removal
The AVX2 computing method has been removed from ITU-R P.1812-8 and P.452-18 models to ensure compatibility with certain systems and to ensure more stable and consistent performance.
Interface
Station Tree View: Additional Display Fields
New Info (1) and TAC/LAC fields have been added, improving visibility and management of network parameters within the interface.
Fixed Radiocoms (MW and PMP)
Coverage / Network Interference / SNIR Maps: Throughput Map Enhancement
The throughput map now reports average spectrum efficiency (bits/Hz) based on the best server and SNIR values at each pixel. This provides a clearer understanding of network performance and capacity across the coverage area.
MW Link Parameters: Status Parameter Display
User-defined “Status” parameters are now visible in MW link reports and listings, improving reporting clarity and operational tracking.
Path / Flight Track: Multi-Channel Support
Now supports multi-channel transmitters and receivers, enabling more realistic modelling of complex communication scenarios.
Interface
File / Save Functions applied to cartographic layers: Resampling Confirmation
A confirmation prompt has been added when applying a resampling factor greater than 1, reducing the risk of unintended project modifications.
Status Bar: Resampling Indicator
An orange indicator now highlights when a resampling factor >1 is applied, improving visibility of project settings.
Indoor Project / SHP File (IDR): Extended Code Mapping
Users can now map indoor DBF codes greater than 10 with IDR codes, enhancing flexibility in indoor modelling workflows.
Map / Data Converter: Batch File Option
A new “Use GDAL BAT file” option has been added. If checked, a .BAT file will be generated containing the commands required to perform the file conversion. If not, no batch file is created, and the process is hidden.
Map data releases: May 2026As part of your maintenance contract, you have exclusive access to ATDI’s continually updated map data library, an essential resource for accurate and efficient network planning.
What’s new this month?
1m Resolution: DTM/Clutter/Buildings: USA, Hartsfield-Jackson Airport (GA), UK, Port Talbot.
20m Resolution: DTM/Clutter: Montenegro.
In addition to our latest map data releases, our cartographic library contains a wealth of high-quality datasets from across the globe. From dense urban environments to remote and rural regions, these datasets support accurate modelling, interference analysis, and reliable network design. To explore the full range of available data, click here.
The image shows a 1m 3D high-resolution dataset of Hartsfield-Jackson Airport.
Rio Tinto is using HTZ Communications at the Simandou iron ore project in Guinea to support RF planning across mission-critical wireless networks.
The project incorporates DMR, Wi-Fi, wireless mesh and microwave technologies to support operational communications and IT/OT connectivity across one of the world’s largest mining developments.
HTZ enables engineering teams to model coverage, assess interference and support reliable wireless communications across complex mining environments.
Wind Turbine Radar Interference DemoCreated to support our recent webinar on wind turbine interference and airport radar performance, this technical demo explores how modern wind farms can affect air traffic control radar systems through clutter, false targets, and tracking instability.
The session explains the technical principles behind wind turbine–radar interaction and examines the operational impact on both primary and secondary surveillance radars (PSR/SSR) within airport environments. It also outlines when rapid assessment methods, including the EUROCONTROL PSR/SSR framework, are suitable and when more detailed technical modelling is required.
The demo concludes with practical mitigation strategies designed to support renewable energy deployment while maintaining airspace safety, radar integrity, and operational resilience.
Watch the demo, click here. The full webinar recording and accompanying PPT slides for further reference.
Eurosatory – 17-21 June – Paris, France – Visit the ATDI team to discover how our advanced spectrum management and radio network planning solutions support accurate modelling,
interference mitigation, coexistence analysis, and mission-critical communications performance in highly contested and congested environments.
Our experts will be on hand throughout the event to discuss real-world operational challenges across tactical communications, spectrum engineering, EW planning, interoperability, and network optimisation. Whether you are planning new capabilities, modernising legacy systems, or addressing spectrum coordination challenges, ATDI provides the tools and expertise to support informed operational decision-making.
ATDI has also secured a dedicated meeting room at the event for more detailed technical discussions, demonstrations, and project consultations with our engineering specialists.
To arrange a meeting with the team during the exhibition, contact us in advance or visit the stand to speak with one of our spectrum experts.
Critical Communications World – 25-26 June – London, UK – This event connects communications service providers, regulators, and technology innovators focused on the future of connectivity and digital infrastructure. With growing pressure on the spectrum from 5G, IoT, and private networks, efficient spectrum use and coexistence are essential. Meet the ATDI team to learn how advanced planning and modelling tools enable operators and regulators to optimise spectrum allocation, reduce interference, and deliver reliable, high-performance wireless networks in dense urban environments.
