What does 1000 in the ESC/Servo control mean?

 The 1000 in the ESC or Servo control means 1000 μs. The 1000 μs is the ‘ON’ time compared or proportioned to the regular interval or ‘period’ of time 2000 μs (50 Hz). We use the term duty cycle to describe the proportion of ‘on’ and the period time, for example, at 1000 μs, the duty cycle is 5%. A higher duty cycle corresponds to higher power.