Welcome to SIS GmbH

EMI vehicle screening

RF shielding is essential for vehicles with installed jamming systems, considering the safety of the drivers and passengers inside the car as well as regarding the electromagnetic compatibility (EMC).

multi alternator holder

With this adaptive generator holder's construction developed by us you are able to offer external power consumers or loading devices with the second generator independent of the vehicle electronics in almost every vehicle type.

Wideband antenna V5

The latest version of our patented high-tech wide-band antenna system is a milestone in terms of performance, functionality and design.
The antenna system consists of several log-periodic antennas integrated in a horizontal fixed board and vertically plug-and-play connected log-periodic antennas.

Vehicle jamming

Our vehicle jamming is built up modular. Easy operability and adaptable application possibilities is designated for our product. Mechanical construction, electricity supply and cooling are an integral component of the total concept with our output stages.

HighTAG™ Mini Transmitter EMV

Approval-free according to EMC guidelines and with CE marking. Compliance with safety guidelines, low electromagnetic fields in the workplace.

The HighTAG™ Mini Sender EMV is designed to suppress radio waves in selected frequency bands.

POE jammer

Conventional jamming systems come with fixed patterns for jamming signals.

The POE jamming system provides software with highest flexibility regarding signal generation and optimal utilization of jamming power to disable the adversarial RF signal.

Portable jammer

The portable jamming system is available in two variants, integrated in a ruggedized pelicase with wheels or as manpack and is therefore transportable like a standard suitcase.

Mini jammer

Conventional jamming systems come with fixed patterns for jamming signals.

The Mini jamming system provides software with highest flexibility regarding signal generation and optimal utilization of jamming power to disable the adversarial RF signal.

Desktop jammer

The desktop jamming system is available in multi variants, integrated in a small desktop case.

Mini audio jammer

For suppressing acoustic waves in selected frequency bands.

The place of use of these devices should be meeting rooms, courtrooms or other secure protective facilities.

Tracking

Our products are available in the variants RFID (active), GSM or GSM/GPS. The GSM- and GSM/GPS-TAGs are additionally equipped with an active RFID-transmitter.

Also available as Narrowband IoT (NB-IoT) version.

HighTAG™ 971

The HighTAG™ 971 LTE analyzer determines the field strength of available mobile networks and links them with GPS coordinates.

Signal Activity Monitor

Wiretaps, listening devices and mobile communication devices are a serious threat to any business, organization or individual’s privacy. To detect and locate such threats in real-time, SIS developed the SAM 8 Signal Activity Monitor.