The MOD6 is a mono DSB fourfold RF PAL modulator. It has four independent internal RF PAL modulator which operate across the range of VHF and UHF and receive their input CVBS signal and monaural sound. It is used in cases where we want to distribute four CVBS signals, eg from a camera or DVD player to a cable network in the form of RF PAL.I choice of output channels for each internal modulator is independent with the display using the façade, while the frequency control output is PLL-controlled microcontroller for high accuracy and stability of the desired channel. The proposed MOD6 always be used in combination with a band pass BPF1 / 2/3/4 filter depending on the desired output frequency for an excellent result without harmonics and interference to adjacent channels. Finally, MOD6 has a common attenuator 20dB at the output, and output level 100dBmV each channel.