Enter the transmitted power (dBm) and the gains minus losses (dB) into the Calculator. The calculator will evaluate the Link Budget Equation. 

Link Budget Equation Formula

RP  = TP +  (G-L)


  • RP is the Link Budget Equation (dBm)
  • TP is the transmitted power (dBm)
  • G-L is the gains minus losses (dB)

To calculate Link Budget Equation, add the transmitted power to the result of the gains minus the losses.

How to Calculate Link Budget Equation?

The following steps outline how to calculate the Link Budget Equation.

  1. First, determine the transmitted power (dBm). 
  2. Next, determine the gains minus losses (dB). 
  3. Next, gather the formula from above = RP = TP + (G-L).
  4. Finally, calculate the Link Budget Equation.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

transmitted power (dBm) = 300

gains minus losses (dB) = 50

FAQs about Link Budget Equation

What is a Link Budget in telecommunications?

A Link Budget in telecommunications is a calculation involving the total losses and gains encountered by a signal as it travels from the transmitter to the receiver. It helps in assessing the strength of the received signal, ensuring it meets the necessary quality and reliability for effective communication.

Why is calculating the Link Budget important?

Calculating the Link Budget is crucial for designing and optimizing wireless communication systems. It ensures that the signal received is strong enough to be interpreted correctly, accounting for all possible losses and gains through the transmission path, thus avoiding signal degradation and ensuring reliable communication.

What factors can affect the gains and losses in a Link Budget?

Several factors can affect the gains and losses in a Link Budget, including but not limited to antenna gains, feedline losses, atmospheric conditions, building materials (in case of indoor transmission), and other environmental obstacles. Understanding these factors is vital for accurate link budget calculation.

Can Link Budget calculations predict the range of a wireless communication system?

Yes, Link Budget calculations can be used to estimate the range of a wireless communication system. By accounting for the transmitter power, antenna gains, and environmental losses, it is possible to predict how far a signal can travel while remaining above the minimum required strength for successful reception.