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-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 others.
Features:
- Mode indication tones
- Programmable via Midian's KL-4F Programmer
- Protects against casual listeners
- Scramble/clear mode is selectable
- Small size fits into most radios
- Superior audio quality
- User-programmable for up to 16 codes
- User-programmable to any inversion code between 2100 - 4096 Hz
- 3 year warranty
Applications
Midian's voice scramblers are ideal for government, public safety, fleets (i.e. taxi, towing, fishing), and private use.
Installation
Midian's VPU series voice scramblers can be fitted into most radios. Midian currently offers plug-in inversion scramblers for many current OEM radios. Midian's voice scramblers are well known in the industry as offering the best audio quality and speaker recognition.
Additional Information:If you radio is not explicitly listed, please contact us for more information.
Midian Electronics manufactures voice encryption and tone signaling devices for Two-Way radio for use by Public Safety users. Products include plug-in scramblers for radios such as Motorola, Vertex, Maxon, Tait, & Icom, Two-Tone & DTMF encoders and decoders for emergency alarms, and products compatible with Motorola's MDC-1200 signaling format.
Midian's tone signaling and encryption products fit a wide variety of applications. They are used by public safety (police, fire, and ambulance), fleet (taxi, towing, fishing, etc.), government, industrial, and OEM users.
Midian's products have been used by: United States Armed Forces, Indian Army, Mexico City Federal Police, Riyadh Police Force, Spanish Guardia Civil, and many others.
