Cell phone signal repeater or booster

Using Arduino General Electronics
9

OK, You don't buy in line-of-sight, let's do urban environments.

Friis Transmission Formula with Propagation Law

  • R = Maximum range for communication link
  • N = Propagation Law (N=2 for line-of-sight, N=4 for urban environments)
  • PT= Transmit power
  • GT= Total antenna gain
  • ? = Wavelength
  • PR= Receiver sensitivity
  • FM= Fading margin

if in urban environments;-

  • Every 12 dBm receiver sensitivity gain will be double the distance.
  • Every 12 dBi antenna gain will be double the distance.
  • Every 12 dBm Transmitter power gain will be double the distance.

Electronics is Math.