Upgraded 60MHz DDS Signal Generator Counter,Kuman 2.4in Screen Display High Precision Dual-channel Arbitray Waveform Generator Frequency Meter, 250MSa/s, 819214bits, VCO, Burst, Modulation, Counter Adopt the Direct Digital Synthesizer (DDS) technology and provide stable, precise, pure and low distortion signals 2.4 inch TFT Color LCD with 320240 resolution, displaying parameters and graphics of the two channels at the same time 14-bit high-speed D/A converter chip (5Vpp output quantization error is less than 1mV), 250MSa/s sample rate, 14bits vertical resolution Various modulation types: AM, FM, PM, ASK, FSK and PSK modulations Various function types: weep, VCO (Voltage Control Output), Burst Output, 100M Frequency meter, Counter, Channel SYNC, Save, and Communicating.