SPREAD-200

Overview

Digital Spread is a digital and encoded audio monitoring system based on an advanced ultra-low consumption technology.

The spread spectrum transmission technology transmits at 200 mW and features a low power consumption of less than 12 mA, which is 10-15 less compared to similar systems with the same output power but using FSK or GMSK modulations.

Thanks to the low power consumption the spread spectrum transmitter is much less vulnerable to countermeasures such as thermal cameras, compared to standard digital transmitters.

Through the programmer interface the microcontroller inside the transmitter may be programmed with various functions and specifications.

Each device is produced with an ID identification code of 1000 combinations, whereas the correct code enables decryption.

Application

• Audio Monitoring by Intelligence Services

Features

• Programming features:
  • VOX (voice activated transmission)
  • Remote control activation
  • Microphone pre-amplification
• Digital Transmission encoded at ultra-low consumption
• Audio Frequency Response: 100 hz-10 kHz @-6 dB
• Typical consumption 12 mA @ 9VDC
• Average power 200 mW @ 9Vcc
• Automatic microphone gain control
• Operating Frequency 300 MHz band (other bands on request in the range 200-500 MHz
• Supply voltage from 6 - 14 VDC
• Protection against polarity power reverse
• Dimensions: 33 x 19 x 5.5 mm