18
Recent Experience with BPL
•Systems installed on overhead distribution lines with
   relatively few (i.e., fewer than roughly 1 per 100 m)
   installed connected devices have attenuation rates
   of approximately 30 dB/km.
•
•The maximum distance between repeaters for these
   same systems is approximately 600 m for a data
   rate of 10 Mbps. 
•Underground distribution lines usually have 3x the
   attenuation rate but substantially less noise.
Note: This information is for systems that meet US FCC
          numerical emission standards