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Home | Products | Encryption | Midian Electronics | Midian Electronics Speech Inversion Scrambler: VPU-11

Midian Electronics Speech Inversion Scrambler: VPU-11

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Low-cost Speech Inversion Scrambler

  • Cost Effective and Flexible
  • Enhanced Audio Quality
  • Selectable Scramble/Clear Modes
The VPU-11 is a cost effective encryption solution, offering enhanced audio clarity with the flexibility of adapting to most radios and providing plug-in versions for other OEM radios. VPU-11 is currently compatible with the following: Motorola's VPA, Transcrypt's SC20-400 and SC20-401, MX-Com's MXP-1080/1180 and many more.

The Main Features of Midian Electronics VPU-11 Series Speech Inversion Scramblers

Midian's VPU Series of inversion voice scramblers protect your voice communications against casual listeners. By mixing the frequency of the voice with an inversion tone in a balanced modulator, sum and difference frequencies are created. A low-pass filter eliminates the sum and the difference is transmitted as "inverted voice". The "inverted voice" undergoes an identical process on the receiving end that reconstructs the voice. Midian's VPU series voice scramblers are available in simplex, half-duplex, or full-duplex operation. 
Features Include:
  • 37 Inversion Codes to Choose From
  • Compatible With Most Competitive Inversion Scramblers
  • Selectable Scramble/Clear Mode
  • Factory Programmable to Any Inversion Code Between 2000-4096 Hz
  • User Programmable Up To 4 Inversion Frequencies
  • Cryptic Signaling Format for ANI, OTAR, Deadbeat Disable, Selective Calling & More
The VPU-11 is ideal for Government/Public Safety, Private and Transportation markets. Midian Electronics, a leader in voice security and encryption products—the solution to your security communication concerns and a Motorola Application Partner.  
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