Crossfire 50Hz vs 150Hz is about trading lower latency for more range: 150Hz (faster) offers quicker response for racing/freestyle with less range, while 50Hz (slower) provides significantly better link stability and longer range using LoRa, ideal for long-distance FPV, though dynamic mode can cause flight controller issues, so locking either 50Hz or 150Hz is often best.
150Hz (RF Mode 2 – FLRC)
- Pros: Lower latency (around 6.6ms), better for tight maneuvers, racing, and close-range freestyle.
- Cons: Less range, uses FLRC modulation which is more sensitive to interference/distance, can feel “sloppy” or cause overshoots when it drops to 50Hz in dynamic mode.
50Hz (RF Mode 1 – LoRa)
- Pros: Higher receiver sensitivity, vastly superior range and link reliability, uses robust LoRa.
- Cons: Higher latency (around 20ms), less responsive for aggressive flying.
Dynamic Mode (Recommended to Avoid)
- Automatically switches between 150Hz and 50Hz.
- Problem: Flight controllers (like Betaflight) aren’t designed for this changing rate, leading to inconsistent PID performance, making the drone feel sloppy or causing stutters when it switches.
When to Use Which
- Racing/Close Freestyle: Locked 150Hz (with strong power/antenna) for responsiveness.
- Long Range/Cruising: Locked 50Hz for maximum link quality and range.
The Verdict: For most FPV pilots, locking to 150Hz (RF Mode 2) for racing or 50Hz (RF Mode 1) for distance is better than dynamic, but if you experience poor performance in 150Hz mode, locking to 50Hz provides reliability for longer flights, even if it’s less snappy.