Scrambler 3318 Scrambler is installed in the front of cable TV system dealing with the image signal. Using scrambler to control the control keypress on the pannel and scramble parametern, adjust the state, and sent control key to terminal user. Scrambler, installed in 19- inch standard framework, adopts synchronous compression and video phase inversion to scramble cable TV signals. There are several changing mode, and can authorize every user who has payed by IC card or cable network. Item Norm Item Norm Input Eectrical level (Vp-p) 1 Differential Phasic (?) <=2 Output Electrical level (Vp-p) 1 Signal-to-Noise (dB) >=60 Input impedance(ohm) 75 K System (%) <=2 Output Impedance (ohm) 75 Bright & Colour Time Lapse (ns) <=20 Differential Gain (%) <=2 Frequency Sound 0-6MHz (±1dB