Detecting illegal transmitters

Fast and high-resolution spectrograms, persistence visualizations and IQ analysis methods are used to detect and locate radio modules without a license in the respective country or so-called pirate transmitters (for FM radio stations). The SignalShark is the first choice for detecting unusual or unauthorized signal activity in frequency bands.

Narda offers stationary and semi-stationary SignalShark solutions for specific applications and requirements, such as uninterrupted 24/7 monitoring, as well as mobile SignalShark solutions for flexible on-site investigations. With the handheld model in combination with an automated DF antenna (ADFA), for example, you can detect and localize interferers using vehicle drive tests and the creation of heat maps to visualize the intensity and distribution of signal strength.

On the so-called 'last mile', it is connected to highly sensitive manual directional antennas. Thanks to its 40 MHz real-time spectrum, it reliably detects and localizes even sporadic interference. Using predefined frequency masks and machine learning algorithms, alarms are triggered so that appropriate countermeasures can be initiated promptly.