The Keysight Technologies 33510B CAL D is a waveform generator in the 33500B series, capable of producing signals up to 20MHz and 30MHz. It features two channels and utilizes exclusive Trueform signal generation technology, which generates true point-by-point arbitrary waveforms with high fidelity, flexibility, and signal integrity. The generator supports various modes including continuous, modulate, frequency sweep, burst, and output gating, with modulation types such as AM, FM, PM, FSK, BPSK, PWM, and sum modulation. It can generate sine, square, pulse, ramp, triangle, and Gaussian noise waveforms across a wide frequency range, as well as PRBS and DC signals. The device offers an intuitive interface, built-in web browser, extensive memory, and high stability time base options. Connectivity options include Ethernet, USB, GPIB, and IEEE-488. It is compliant with multiple safety standards and features a 4.3-inch color TFT display. Applications include test and measurement tasks.