Sampling rate up to 250MSa/s. Built-in arbitrary waveform with 250 MSa/s sampling rate. 4 downloadable 2048 dots arbitrary waveform memories With 12 bit wide waveform generator, the output waveform can be more delicate with low distortion. Fully numerical control.for user's convenience. Trigger output function: User can choose manual trigger, external trigger or CH2 trigger to control the main output to output waveforms of specified periodicity. It can display and numerical control amplitude, offset, frequency, duty cycle of current signal output and phase difference of two channels. And dual-channel arbitrary integer multiples of the frequency output when no phase error signal phase drift; Each function can be adjusted by host computer. And dual-channel arbitrary integer multiples of the frequency output when no phase error signal phase drift; Each function can be adjusted by host computer. Preinstalled 17 common waveforms. High frequency accuracy: magnitude 10-6 High resolution: Full range frequency resolution can be 10 mHz. Both main and subsidiary wave duty cycle are adjustable separately (0.1%~99.9%?. All range continuously adjustable, digital directly setting. High waveform accuracy: The output waveform synthesized by function calculation is of high accuracy and low distortion. Arbitrary waveform: User can load arbitrary waveform according to the need. Sweep Function:Linear sweep and Logarithmic sweep. Starting and stop points can be set optionally. Save function: 20 sets of parameters defined by the users can be saved and loaded anytime. Operation mode: Button and knob controlled with LCD1602 display, digital set directly or knob adjusted continuously. This periodicity can also be defined by the user. Highly reliable:Large scale integrated circuit, Surface mounting technology, reliable and durable. Frequency measurement:Frequency of internal / external signal can be measured through built-in 100MHz frequency meter.Follow function: Built-in parameter follow function covering frequency, amplitude, offset, duty cycle, waveform etc. FSK frequency shift keying and ASK amplitude shift keying signal output.