Spaceborne Synthetic Aperture Radar systems are an important component of our Earth Observation space infrastructure. This tutorial will guide the students through the main parameters that define a SAR system (antenna dimensions, available average power, etc.) and link them to the key performance indicators (radiometric sensitivity, spatial resolution, ambiguities, etc).While users of Synthetic Aperture Radar data can often get away with ignoring how the data is generated, there are many cases in which a fundamental understanding of the trade-offs involved in the design or operation of a SAR system are relevant. This tutorial will: - Introduce the concept of a Synthetic Aperture Radar - Discuss the relevant performance indicators, some more general like spatial resolution or image size, and some more SAR specific, such as the noise equivalent sigma zero (NESZ) or how well ambiguities are suppressed. - Link these performance indicators to fundamental system parameters, such as antenna dimensions and available power. The students will work with a Python notebook to explore interactively how changing system design (or processing) parameters impacts the imaging performance.