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Voice Inversion Scrambler for Hytera TC-780 & TM-800 Radios

Voice Inversion Scrambler for Hytera TC-780 / TM-800 Radios

To Order Call:
1-800-MIDIANS (643-4267) or 520-884-7981


Midian's VS-1000 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 VS-1000 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 others.


  • User-programmable to any inversion code between 2100 - 4096 Hz
  • User-programmable for up to 4 codes
  • Protects against casual listeners
  • Scramble/clear mode is selectable
  • Mode indication tones
  • Superior audio quality
  • Programmable through the radio
  • Plugs into Hytera's TC-780 & TM-800 radios
  • 3 year warranty


Midian's voice scramblers are ideal for government, public safety, fleets (i.e. taxi, towing, fishing), and private use.


Midian's VS-1000-HYT1 plugs into the Hytera TC-780 portable radio and TM-800 mobile radio. Midian's voice scramblers are well known in the industry as offering the best audio quality and speaker recognition.