The display interface uses a 2.4-inch TFT color LCD screen, making operation more intuitive and convenient The instrument adopt the Direct Digital Synthesizer (DDS) technology and provide stable, precise, pure and low distortion signals Abundant shortcut keys and graphical user interface simplifies every operation, which makes it easy to operate.Various modulation types: AM, FM, PM, ASK, FSK and PSK modulations.Sweep Function: It can sweep 4 properties of signals including frequency, amplitude, offset and duty cycle; It has Linear and Logarithm two sweep types; 0.01S~999.99S sweep time; Up, Down and roundtrip sweep directions. Surface mounting technology improves interference immunity and operational life span.VCO Function (Voltage Control Output): Can be achieved by an external input signal: voltage controlling frequency, voltage controlling amplitude, voltage controlling offset, voltage controlling duty cycle and PWM modulations.100M Frequency meter function: It can measure frequency, period, pulse width and duty cycle. The instrument uses 14-bit high D/A converter chip (5Vpp output quantization error is less than 1mV), 250MSa/s sample rate, 14bits vertical resolution