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STEALTH EVOLUTION - Digital Stereo Radio Microphone System

STEALTH EVOLUTION - Digital Stereo Radio Microphone System

The Stealth Evolution Hand-held Transceiver (EHT) offers all the performance of the previous Stealth Listening Post (LP) transceiver in a small, rugged, easy to use hand-held enclosure.


  • Usable in more operational scenarios
  • Excellent receiver sensitivity and command transmitter output power
  • Dual band receiver coverage
  • Fully type approved
  • Multi-Lingual user interface
  • Compatible with existing Stealth ISE deployments
  • Integrated web interface for full remote control over IP
  • Integrated audio streaming server

Performance enhancements:

  • Dual band coverage. The EHT includes a 320MHz to 335MHz and a 360MHz to 375MHz receiver meaning that it is capable of receiving audio product from existing Stealth ISEs, existing Stealth Relay deployments or the Stealth ESE.
  • Excellent sensitivity and output power. Packaging the EHT in a hand-held enclosure has not resulted in any compromise in performance.The receivers achieve a typical sensitivity of -107dBm for a 12dB SINAD (1kHz in CCITT weighted filter), whilst the command transmitter is still capable of delivering a nominal +19dBm output in the 170MHz to 175MHz band.

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Latest news...

March 2017: We are proud to announce that Silynx Communications (“Silynx”) has chosen GSSI as its exclusive reseller in France. Silynx is a world leader in the design, development, and manufacture of tactical, in-ear headset systems. Silynx in-ear headsets provide advanced hearing protection, hearing enhancement, and communications capabilities.

January 2017: We are proud to announce that DTC - Domo Tactical Communications has chosen GSSI as its exclusive reseller in France. DTC’s high performance surveillance, communications and broadcast systems and Tactical IP Mesh Systems enable our customers to securely monitor, communicate and share information with confidence in complex environments and in the most demanding situations.

October 2016: New laser illuminators are now available: The tiny (only 52mm long) GS-S15M is a short range (200m) wide angle (26°) covert laser illuminator. It’s eyesafe and can be mounted on vehicle, UAV, or building. The GS-LM series is a long range (up to 15km) laser designator, illuminator and pointer working in NIR band. It provides powerful and adjustable laser beam for target marking and illumination The M98M version offers now a "speckle free" laser, allowing a homgeneous illumination up to 2000m.

June 2015: The next generation audio surveillance system is now available. It provides a modern connectivity solution supporting point-to-point, multi-hop and other complex network configurations. All of these are configured via a simple graphical user interface, and can be reconfigured on-the-fly if operational circumstances demand. You wish to "hear" about it ? Give us a call so that we can come over and make real tests with you.

May 2015: The new EMCMOS HD Low Light Level Camera makes your night a day! Call us for a test.