Jumper JPD-ES200 Manual De Instrucciones página 16

For transmitters rated at a maximum output power not listed above, There commended
separation distance d in meters(m) can be estimated using the equation applicable to the
frequency of the transmitter, where P is the maximum output power rating of the transmitter in
watts(W) accordable to the transmitter manufacturer.
NOTEI At 80 MHz and 800 MHz. the separation distance for the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and refection from structures, objects and people.