Received Power Calculator

Received Power Calculator calculator can be used to calculate the received power of a signal based on transmitted power, distance, and antenna gain.

Input Parameters

Calculation Results

Calculation Formula

Pr = Pt + Gt + Gr - 20log10(4πd/λ)

Where:
Pr = Received Power (dBm)
Pt = Transmitted Power (dBm)
Gt = Transmit Antenna Gain (dBi)
Gr = Receive Antenna Gain (dBi)
d = Distance (meters)
λ = Wavelength (meters) - Note: Wavelength is not required for this calculation if provided in the input

Received Power (Pr)

Received Power Calculator Calculator Usage Guide

Learn how to use the Received Power Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the transmitted power (Pt) in dBm.
  2. Enter the distance (d) between the transmitter and receiver in meters.
  3. Enter the transmit antenna gain (Gt) in dBi.
  4. Enter the receive antenna gain (Gr) in dBi.
  5. Click the "Calculate" button to compute the received power (Pr).
  6. The received power will be displayed in dBm.

Working Principle

The received power is calculated using the Friis transmission equation:

Pr = Pt + Gt + Gr - 20log10(4πd/λ)

Where:

  • Pr = Received Power (dBm)
  • Pt = Transmitted Power (dBm)
  • Gt = Transmit Antenna Gain (dBi)
  • Gr = Receive Antenna Gain (dBi)
  • d = Distance (meters)
  • λ = Wavelength (meters)

This calculator assumes a fixed frequency of 2 GHz for the wavelength calculation. If you need to use a different frequency, you can modify the script accordingly.