Welcome to our January newsletter. We begin 2026 with some major developments: a powerful new AI feature is coming soon to HTZ, designed to streamline engineering workflows and deliver intelligent support directly within the software. We also highlight the latest HTZ software updates and feature enhancements, alongside new high-resolution map data releases now available to support more precise modelling and analysis.
This edition includes recent project highlights with ADC in Saudi Arabia and a leading broadcaster in South Korea, demonstrating HTZ’s role in national-scale, mission-critical deployments. We also preview upcoming events, including our technical webinar on wind farms and aeronautical radar. And if you’re looking for a new opportunity, we’re recruiting an RF Engineer for our Paris office. Full details below.
A powerful new AI capability is coming to HTZ, bringing integrated intelligence to streamline your engineering workflows. Delivered as part of your maintenance cost, this feature supports both offline and online modes for all users with an active contract.
The offline mode uses an embedded LLM running locally within HTZ (performance depends on your PC configuration), while the online mode processes requests through an external AI provider for faster responses and broader functionality.
HTZ supports leading AI models, including OpenAI and Mistral. Your local ATDI office will advise on the most suitable mode and provider based on your operational, regulatory, or strategic context. AI access is embedded directly in HTZ and requires no additional installation.
Full details will follow in March. In the meantime, contact your local ATDI office to discuss early access and the configuration that best fits your needs.
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.
INTERFACE
New: HTZ API Architecture – Enables bi-directional communication between HTZ and C#/WPF plugins via HtzPlugin.dll.
TRX Format Update – New format compatible with Tx/Rx, Radar, Jammer, and DF objects.
Cartographic Conversion – Sweden RT90 – Adds support for EPSG:3019 across 6 zones.
Export FLD by Zone/NetID – Automates FLD file generation based on station groupings in a CSV file.
HTZ.exe Renaming – New executable name: HTZ.exe. **We strongly recommend uninstalling the previous version before installing this new release.
Memory Management Enhancements – Increases memory allocation; limits external DLLs to 4 G points.
BIM File – Online Map URLs – Adds two new WMTS-type URL fields (UserURL_Topo/UserURL_Ortho).
World Conductivity Map – Updated with ITU IDWM vector data.
IDWM MF Vectors – Now available for download and conversion to raster.
VEC Polygons – Conductivity Map Creation – New option under Modify Clutter for generating conductivity maps.
Modified: Vector Polygons to Raster – New option to retain the maximum value from overlapping polygons.
TRX File Handling – “Comment” field now saved when loaded via UI.
Password Tool – Removed; only Admin can apply menu/pop-up settings.
CALCULATIONS
New: Two-Station Power Receiving Map – Calculates the minimum required power to avoid interception.
ECC-33 Propagation Model – For medium cities, range 700–3000 MHz.
ITU-R P.1812 Log Report – Adds log report to the path profile window.
Modified: Two Stations Interconnection Map – Overlapping area now visualised.
TACTICAL RADIOCOMMS
New: Path Object – Course Error Display – Adds cone visualisation for course deviations.
Modified: Jammer Parameters – Adds “Dynamic” and “Comment” fields.
Mobile Mission Planning (C.E.W) – Adds “J/N” rule for jammer avoidance, exclusive with “J/S”.
Jammer Composite Coverage - Now respects the “Threshold from stations” setting.
MOBILE RADIOCOMMS
Modified: Minimum SNIR Value – Lowered to -10 dB for throughput calculations (was -6 dB).
SPECTRUM MANAGEMENT / RADAR
New: TRX Format Update – Supports radar and DF.
World Conductivity Map – Updated default conductivity data.
IDWM MF Vectors – Downloadable shape/VEC files from the ITU database.
Modified: EUROCONTROL DME-DME Area – Adds “Unique Overlap pairs” option.
RDX File – Deprecated radar parameter format removed.
TACTICAL
Modified: Station Parameters (Site tab) – Threshold extended to 9,999 m, affecting BRA 3D/DME/ILS/MLS logic.
To access the latest upgrade, click here.
Setting a New Standard for Mission-Critical Communications in Saudi ArabiaThe PS-LTE 450 MHz network marks a major step forward in secure, resilient broadband for public safety and national infrastructure. Led by Aramco Digital and supported by Capgemini and ATDI, the project used HTZ Communications for end-to-end RF planning from site selection to coverage validation.
Drive testing confirmed exceptional alignment between field data and model predictions, exceeding expectations for accuracy.
ATDI also delivered high-resolution national map data (1 m and 5 m), enhancing modelling precision and supporting site deployment delivered ahead of schedule.
HTZ’s proven performance, precision, and flexibility helped bring this ambitious national initiative to life. Learn more.
Solving SFN Interference in Advanced Broadcast NetworksSouth Korea leads in digital broadcasting, with ATSC 3.0 and DMB networks delivering UHD and mobile content nationwide. Yet dense transmitter deployments and complex terrain create significant challenges for Single Frequency Network (SFN) interference. HTZ Communications helps broadcasters like KBS and SBS overcome these issues with advanced RF modelling tools. HTZ simulates delay spread, identifies self-interference zones, and optimises network parameters to ensure reliable coverage and efficient spectrum use. While ATSC 3.0 is active in South Korea and the U.S., DMB is widely used there for mobile services.
See the full article here.
IWCE – 16-19 March – Las Vegas, USA - Join us at IWCE 2026 in Las Vegas this March. At Stand #1854, we’ll be showcasing how HTZ Communications supports the design and optimisation of secure, high-performance networks for critical communications. See tools in action for coverage, capacity, interference, and frequency planning across public safety and emergency services.
Stop by to explore how we can support your next mission-critical project.
Upcoming Webinar: Wind Farms & Radar – 28 April
Join ATDI on 28 April for an exclusive webinar in partnership with Airspace World 2026. We’ll be exploring the impact of wind farms on aeronautical radar systems, a growing challenge for both wind energy developers and aviation stakeholders. This session will address key technical and regulatory issues and offer insights into mitigation strategies and coexistence planning.
Save the date – full details coming soon.
We’re Hiring: RF Engineer (Paris, France)ATDI is expanding its team and currently recruiting for an RF Engineer based in Paris, France. This role requires fluency in both written and spoken English and French. If you're passionate about radiofrequency engineering and want to work on leading-edge spectrum management and modelling tools, we’d like to hear from you.
Visit our Careers page to learn more and apply.
NB: only applicants with the right to work in Europe will be considered.
