This tutorial will introduce the use of Cadence and SpectreRF for performing circuit simulation in 6.776. Cadence contains an entire design framework for IC design, including schematic capture, layout, circuit simulation, and verification tools. We will be running Cadence Version 4.4.6 on MIT server SUN machines. The Spectre circuit simulator is run in the Affirma Analog Design Environment within the Cadence design framework. Spectre is an advanced SPICE simulator that simulates analog and digital circuits at the differential equation level. SpectreRF includes additional simulation capabilities such as periodic steady state (PSS), s-parameter analysis, and nonlinear noise analysis that make simulating RF circuits easier. This tutorial will first explain how to get the 6.776 Cadence environment running on MIT server. Then, two examples will be presented that will help you get familiarized with the SpectreRF circuit simulator.