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Home | Products | Encryption | Midian Electronics | Midian Electronics Voice Inversion Scrambler: VPU-12A

Midian Electronics Voice Inversion Scrambler: VPU-12A

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Voice Inversion Scrambler

  • Features Mode Indications
  • Enhanced Audio Quality
  • Programmable For Any Inversion Frequency from 2100-4096Hz
Midian's VPU Series of inversion voice scramblers protect your voice communications against casual listeners.

The Main Features of Midian Electronics VPU-12A Series Voice Inversion Scramblers

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–12A is compatible with Motorola's VPA, MX–Com's MXP–1080/1180 series, Transcrypt's SC20–400 and SC20–401, Selectone's ST–20, and more.
Features Include:
  • User-programmable to Any Inversion Code Between 2100–4096 Hz
  • Scramble/Clear Mode is Selectable
  • User-programmable for Up to 16 Codes
The VPU-12A is ideal for Government/Public Safety, Military, Utilities, Transport and Industrial markets. Midian Electronics, a leader in voice security and encryption products—the solution to your security communication concerns.    
VPU Series Brochure
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