Features: Using Direct Digital Synthesis(DDS) technology; 0.2mV Output Amplitude for Small Signal; 100 _Hz~120MHz frequency range for main waveforms; 100MHz equal-accuracy frequency counter; Store/recall 10 waves panel setting; Arbitrary setting of start and stop for frequency sweep output; More than 30 kinds of output waveform (arbitrary is optional); 13-character highly visible VFD; RS232 interface, GPIB interface option