- Modern choices: Spektrum DSM2/DSMR, Futaba FHSS, FlySky AFHDS 3, and ExpressLRS.
- ELRS offers low latency (ExpressLRS 2.5 < 5 ms) with open‑source hardware.
- Always mount antennas vertically and clear of metal parts for range > 800 ft.
- Set failsafe to neutral + brake to avoid runaways if signal drops.