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If you feel like building a 5" Freestyle Drone is too hard, you just need the right guidance.
So, I built a course with 71 highly detailed but simple modules, breaking down absolutely everything! They're can't be anything missing, if there is, I will add it. ExpressLRS and Crossfire, two popular radio control systems for FPV drones. While many argue over which system is better, we believe it comes down to personal preference and needs. ExpressLRS is an opensource system that allows for more hardware choices, lower costs, and compatibility with smaller drones without the need for extra weight from a receiver and antenna. Additionally, ExpressLRS is comparable to Crossfire in range and penetration, thanks to its use of the same volume transmission and pitch change for better resiliency.

One of the main advantages of Crossfire is its use of 900mhz frequency for radio control, which allows for better penetration and range than Frsky's 2.4ghz frequency. However, using 2.4ghz provides faster packet rates and more data can be carried in each transmission, resulting in better performance and response times. While Tracer is a 2.4ghz version of Crossfire, it's only available on the Mambo radio, making it challenging for beginners to use, who would need to invest in Crossfire first and then eventually swap to Tracer.

While some people have complained about the difficulty of setting up ExpressLRS, each new release is becoming easier to set up. For instance, the Radiomaster Boxer can be set up with ExpressLRS and bound to multiple quads in just five minutes, without having to bind each quad individually. In summary, both Crossfire and ExpressLRS are great radio control systems, but it's up to personal preference and one needs to decide which one is better.

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