Strain Security Systems, LLC

Our ST-TVS-2 Micro is a miniature Tactical Voice Encryption Module with ANI Selective Call, Status, & Location System.  They are easily retrofitted into radios to give you unparalleled voice communication privacy - with the best recovered audio quality and speaker recognition in the industry.

Available in your choice of Motorola HT-750, HT-1000, HT1250 or Kenwood TK-370 Series of UHF or VHF hand held, two way radios, they provide true pseudo-random frequency hopping with random dwell, unlike other units that simply sweep. These radios all have a standard line-of-sight range of 4-5 miles. 

This encryption system can be retransmitted through a repeater (such as a Kenwood TK‑875 Repeater) without any loss of audio quality which greatly extends the range of 2 way radios.

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This system is currently being used successfully by law enforcement and Federal agencies throughout the U.S., Canada & Mexico.