Jun 11, 2024

cSAR3D V5.8: New Features, Enhancements, and Automation for Efficient Wireless Device Testing

Our latest cSAR3D release addresses many user requests and brings routine and complex test sequences into the user’s control.

SPEAG has not only developed the fastest, most accurate, and most advanced vector-based measurement system for specific absorption rate (SAR) testing but also the most versatile and powerful tools for automated evaluations. The latest release, cSAR3D V5.8, brings several important enhancements that further simplify and streamline testing. These upgrades have been driven by user feedback and the evolving demands of wireless technology testing.


Streamlined User Experience

cSAR3D V5.8 includes several features aimed at improving the user experience:

  • Project File Compression: Significantly reduces the size of the cSAR3D project file and saves time, especially when storing measurements on slow network drives;
  • Improved Navigation: Streamlined project navigation using keyboard arrow keys for a more intuitive user experience;
  • Automatic Update Notifications: Ensures that users stay up-to-date with the latest features and improvements through in-software notifications;
  • Optimized Result Displays: Enhanced display of peak spatial-averaged SAR over 1g and 10 g of tissue (psSAR1g, psSAR10g), and peak spatial-averaged APD over 4 cm2 area (psAPD4cm2), optimized for various screen resolutions and text scaling, resolving issues encountered in previous versions.

Automation with cSAR3D API V2

SPEAG also invested in a robust, operating system-independent application programming interface, cSAR3D API V2, that uses HTTP requests. This representational state transfer (REST)-like interface allows users to set up complex test sequences outside of the cSAR3D graphical user interface (GUI) using just a few lines of code. cSAR3D API V2 is separately licensed and enables automation of test sequencies. SPEAG is committed to continuously developing the API based on customer feedback and testing needs. Please note that cSAR3D API V1 is discontinued.

Expanding Measurement Potential

With cSAR3D API V2 users can extend the measurement capabilities of cSAR3D far beyond the features within the GUI, enabling:

  • test reduction procedures;
  • production line testing;
  • post-market surveillance;
  • and much more.

The latest version, cSAR3D V5.8, incorporates time-average SAR (TAS) measurements into API V2. This feature enables rapid and continuous SAR tests (three full 3D SAR measurements per second) to determine the average exposure over any averaging window. This is particularly useful for evaluating dynamic power control, transmit diversity, and other exposure control features of modern wireless devices.



Getting Started with API V2

To get you started, we have bundled a Jupyter-notebook-based tutorial of API V2 with the cSAR3D installer that includes sample code to perform different types of measurements and measurement sequences. These feature single, X10 Combiner, and TAS measurements.

With these advancements, SPEAG continues to lead the way in SAR testing technology, providing innovative solutions to meet the evolving demands of the wireless device industry.

For more information, please contact



Jun 7, 2024



2022 Zurich43 Retreat Follow Up: Visit at Anna Göldi Museum

We had the pleasure of visiting the Anna Göldi Museum this week, as a follow-up to our 2022 Zurich43 retreat on "Witches vs. Bill Gates: Conspiracy Beliefs & the Role of Science — Implications for Gender Bias & Inequality".


May 28, 2024



DASY8/6 Module SAR V16.4: Enable Multi-TX Evaluations for Devices with TAS

Most modern smartphones feature dynamic power control exposure time averaging (DPC-ETA) and the ability to transmit on different frequency bands simultaneously. SPEAG has worked closely with regulators to release a measurement procedure in Module SAR V16.4 that allows such devices to be tested as part of market surveillance – without the use of manufacturer tools. Furthermore, new features have been integrated that make testing even easier.


May 24, 2024



DASY8/6 Module WPT V2.6: Testing for Compliance with Basic Restrictions at Frequencies <4 MHz

In response to feedback from ISED and the FCC as well as from our customers, we have further refined our MAGPy product line to make it compatible with global requirements for demonstrating compliance of wireless power transfer systems with the basic restrictions and reference levels.



Apr 26, 2024



Latest Regulatory and Industry Updates Presented at TCB Council Workshop in Baltimore

3-Day Program Delivered Regulatory and Industry Trends, and Latest Technical Knowledge


Mar 19, 2024



Pre-Announcement: New DASY8 Module SENS for TA-PS Performance Evaluations

Following a successful research collaboration between the IT’IS Foundation and Semtech, SPEAG is finalizing implementation for the release in June of the latest DASY product, the new DASY8 Module SENS for reliable evaluation of Time-Averaged Proximity Sensors (TA-PS).



Feb 19, 2024



Zurich43 Retreat 2024: Demarcation of Tolerance

In mid-February, the annual Z43 retreat was held at the Hotel Pilatus Kulm to discuss the timely topic of “Demarcation of Tolerance in Science, Society and the Individual” with the goal to better understand the importance and limitations of tolerance.


Feb 13, 2024



Regulator Ready: DASY8/6 Module WPT V2.4 and MAGPy V2.4

As a result of our continuous exchange of information and measurement strategies with the regulators, SPEAG has refined the software and issued seven Application Notes showing how to test according to the latest FCC, ISED and IEC regulations.



Dec 19, 2023



DASY8 Module APD V1.0 – Unlocking Absorbed Power Density for 5G NR FR2

DASY8 Module APD V1.0 is the world's first near-field absorbed power density test solution for evaluating exposure at frequencies greater than 10 GHz. It complies with current and all evolving regulations and enables thorough compliance testing of 5G and 6G devices while reducing test conservatism.


Dec 1, 2023



Microwave Factory and SPEAG Sign Distributor Agreement

We are pleased to announce that Microwave Factory Co., Ltd. (MWF) is our new SPEAG sales agent in Japan as of December 1, 2023.


Nov 28, 2023



Celebration of 1000 DASY Robots Sold

Stäubli, SPEAG’s robot supplier, organized a generous event to celebrate the 1000th robot sold to SPEAG.

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