With its latest development, the SignalShark EMF, Narda STS is redefining EMF measurement technology. To achieve this, the engineers at the pioneer and world-leading provider of high-quality measurement technology in the field of electromagnetic fields have combined state-of-the-art EMF functions with the SignalShark, their powerful and highly precise spectrum analyzer & receiver. Its simple, intuitive operation opens up a world in which perfect precision and speed, reliability, and professionalism are not just empty promises, but reality for experts and beginners alike.

Thanks to its new modular application software, the robust portable device now not only masters state-of-the-art real-time spectrum analysis, signal monitoring, and localization, but also frequency-selective EMF measurement and complete, standard-compliant EMF assessment, including intelligent extrapolation of real 5G traffic signals.

Future requirements in the field of EMF safety

With this step, Narda STS is primarily responding to the numerous new fields of application in the area of EMF safety, which will place new demands on performance, speed, and flexibility in the foreseeable future. In addition to the 5G|5G-Advanced & 6G standards, these include developments such as TDD and Massive MIMO, beamforming and dynamic traffic, as well as all market requirements that will result from these in the future.

That is why the engineers at Narda STS have developed a "modern big brother" to complement the SRM-3006, which has established itself worldwide over many years as the industry standard for selective EMF safety measurements between 9 kHz and 6 GHz. A high-end device with the important spectrogram function (frequency over time), which measures up to 8 GHz with its isotropic antenna and whose domain is already the new 5G/6G standards with their new usable frequency bands.

Typical users

Narda STS is targeting the SignalShark EMF at regulatory authorities and telecommunications providers, environmental and occupational safety experts, EMF specialists, and technical service providers who perform reproducible field strength measurements in demanding, high-frequency environments—such as 5G mobile cells, radar, or broadcast transmitters.

The new device is also aimed at measurement technicians who, in the future, will have to take on demanding measurement tasks in both areas, EMF measurements and interference detection, for example, due to the merging of individual departments. All of these users now have access to a single measuring device that does not compromise on technology in either area. A single measuring instrument for all tasks means time and cost savings: only one purchase and only one training session required, only one device to calibrate and maintain. Of course, users only pay for the functions they actually use. The SignalShark EMF can be expanded with new functions at any time via a software option.

If, for example, a network operator needs to prove site approval, they can use the SignalShark EMF to start an EMF-compliant traffic simulation remotely via smartphone. The result is extrapolated live, stored with georeferencing, and output directly as a percentage value of the standard – and the measurement report is ready.

Using the new SignalShark EMF

With the launch of the new SignalShark EMF, Narda is merging the previously separate areas of EMF safety and RF test & measurement into a single device. And all this with just a firmware update. This means that anyone who already has a SignalShark can perform basic EMF measurements with a firmware update. For more complex, highly automated measurements such as 4G or 5G decoders, Narda offers numerous additional software options.

Measurement technicians in the field of EMF safety who already use an SRM-3006 and are considering purchasing a new device will enjoy numerous advantages with the SignalShark EMF. Narda customers can continue to use all their SRM antennas, including all cables, with the SignalShark without any problems. In addition, they can measure higher frequencies and benefit from intuitive ease of use and modern functionalities such as the spectrogram or additional storage and documentation options. If they want to go up to 8 GHz, they can purchase the 8 GHz antenna at particularly favorable conditions.

The advantages

The list of outstanding advantages of the SignalShark EMF is long. Highlights include the extremely high measurement speed, automatic evaluation of the limit value and its high immunity to interference, continuous calibration, voice comments, SCPI control, and, last but not least, a well-designed, user-friendly EMF user interface. Together with extremely fast measurements and a high degree of automation, this ensures precise, reliable measurements with minimal risk of error. The SignalShark EMF also offers the option of performing parallel measurements.

Ease of use

One of the developers‘ goals was to keep the operation as intuitive and simple as possible, even though 5G/6G communication signals are becoming increasingly complex and complicated, and a powerful measuring device must be able to do more accordingly. There are many good reasons for this. Not only does this enable experts to fully utilize the comprehensive potential of the SignalShark EMF after a short time, but even laypeople quickly feel confident in using the device in their everyday measurement work and can quickly perform valid measurements in the field on their own. An expert sets up the device once with setups and measurements, and the user can then perform the same measurements with the device. Even laypeople quickly feel confident in using the device in their everyday measurement work and can quickly perform valid measurements in the field on their own. An expert sets up the device once with professional setups and measurement routines. As a result, even less experienced users are then able to operate it safely and without errors. The bottom line is that simple and intuitive handling, e.g., via automated measurement routines, reduces the risk of errors in series measurements or measurement campaigns, which are quite common in the field of EMF safety.

Its high user-friendliness has been achieved by using modern tiles or windows on the display, similar to a Windows interface. These take the user by the hand with clear illustrations, explanatory short texts, and concise instructions, guiding them through the menu. But no matter how easy the operation may be in the end, Narda never leaves its customers alone with a new device. User training courses and seminars on all of its sophisticated instruments are offered on a regular basis.

Accredited calibration

Every SignalShark EMF is delivered calibrated. Accredited calibration will follow in early 2026. Calibrated antenna and cable data ensure highly accurate and traceable field strength measurements. Narda also reports the measurement uncertainty, including cable and antenna, which is particularly important. This is mandatory as the official measure of measurement quality for every measurement report that must be legally valid in court. Not to mention the reproducibility, high measurement quality, and reliability of all measurement results.

Built to be robust for field use

EMF measurements are usually about finding out whether a certain level at a specific location is within the permitted limit range. Unlike a laboratory analyzer, the SignalShark is specifically designed for outdoor use in harsh environments, is very robust (IP54), and is equipped with extremely high radiation resistance up to 200 V/m. It is also MIL-certified. This seal of approval represents the military’s strict testing standards, which specify the environmental conditions that devices must withstand, such as extreme temperatures, humidity, shock, vibration, and dust.

And finally, to address the potential conflict between the extremely high sensitivity required for interference finding or radio monitoring and the ability to withstand very high electromagnetic fields, the SignalShark has a switchable internal attenuator of up to 30 dB. This is just one more fine detail among many that proves that Narda engineers have put all their know-how and extensive industry experience into its development and thought of everything. This makes the SignalShark EMF the perfect companion for measurement technicians and a reliable partner for anyone who demands the highest standards from their measurement equipment and will not tolerate any compromises.