Dive into the second class of HackadayU's Introduction to FPV Drones series, taught by Ayan Pahwa. Explore the intricacies of drone frames, including their varieties, sizes, propulsion systems, materials, and quadcopter variants. Learn about frame assembly before delving into the world of transmitters and receivers. Gain insights into communication links, frequency, RF power, data rates, range, channels, protocols, long-range systems (LRS), ultra-high frequency (UHF), telemetry, antennas, connections, and failsafe mechanisms. Perfect for aspiring drone enthusiasts and builders looking to deepen their understanding of FPV drone components and systems.