The VI8200 enables the AR8200 to recover intelligible audio from certain types of analogue transmission which would otherwise sound scrambled. Analogue transmissions operate by splitting up the audio spectrum and 'flipping' the upper and lower tones around a certain frequency point. The VI8200 enable 157 different 'flip points' to be selected in the frequency range of 2.4 kHz to 5.6 kHz. For government sale only
