... , multi-wave 3.use DDS technology MCH RF Function Generator,SM-4120 rf function generator,120MHz high frequencySpecifications: WaveformsMain Waveformssine, ... 120%Modulation Distortion≤2%SourceINT/EXT(Ext. AM:±5V=100%)Frequency ModulationCarrier WaveformSine, SquareCarrier Freq. Range100μHz-20 ... to change without prior notice. MCH RF Function Generator,SM-4120 rf function generator,120MHz frequency