MRA-3Q The new MRA-3Q is an advanced automatic radio scanner suited for instant detection of various types of radio bugs in the frequency range 36- 3600MHz. The basis of the system is the radio spectrum memory combined with an ultra fast scanning. The whole frequency range is scanned every eight seconds and the currently received signals are compared with the initially stored "clean" background spectrum. The presence of a new signal activates a three level alarm output. All new signals are stored in an alarm memory including various statistical information. MRA-3Q can be used within the QM-4000 network system, which allows full remote control and various extended funtionality.

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MRA-3Q allows to automatically acquire audio records of new signals which have been causing alarms. Recorded audio samples together with the stored statistic information are reliably indicating if the object was attacked by RF eavesdropping. MRA-3Q can be used as a part of the QM-4000 bus system. QM-4000 allows parallel connection of up to 32 MRA-3Q devices within an object network. The bus system allows full remote control of each device, and additionally it contains numerous additional features like spectrum analysis in the range of 36–3600MHz, background statistic, new signal statistic, automatic audio sampling, frequency and spectrum records, selective statistic, system statistic etc. QM-4000 is not only a comprehensive solution for object permanent protection, but also a very effective tool for electronic countermeasures specialists since it gives a clear graphical picture of the current RF signals. By using QM-4000 we can detect and record even such dangerous systems like spread spectrum, or modified WiFi, DECT, and GSM.

Basic configuration

• Fast and detailed radio spectrum analysis
• Detection and localization of RF listening devices
• Selective analysis of radio signals
• Permanent protection based on ultra fast comparison of „clean“ spectrum with actual signals
• Optical and acoustic indication of dangerous signals
• Memory of 100 alarm signals with time and statistic information
• Easy optimisation of background spectrum based on a long time analysis
• User friendly controls, protected against unauthorised manipulation
• Designed both for specialists and for direct VIP usage

Permanent protection with audio recording

• Automatic audio recording of alarm signals, enhanced permanent protection
• Adjustable length of audio samples
• Easy separation of false alarms and real bug signals
• Analysis of alarm records at any time after an event or VIP meeting
• Enhanced optimization of the background spectrum based on long time spectrum monitoring

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