How to use it
- Enter the initial level in dBm.
- Enter nonnegative cable, connector and other losses plus amplifier gain.
- Calculate the net change and estimated final level.
Signal Loss Calculator
Combine stated dB losses and gain to estimate a final signal level in dBm.
Important: This calculator is for educational and estimation purposes only. It is not telecom engineering, safety, regulatory, or compliance advice. Always consult qualified professionals and local regulations for real-world deployments.
About the Signal Loss Calculator
This educational link-budget helper adds stated losses and gain on the logarithmic dB scale.
How it works
Total loss is the sum of the loss entries. Final dBm equals initial dBm plus amplifier gain minus total loss.
Example
Starting at 0 dBm with 4 dB of losses and 3 dB of gain produces an estimated -1 dBm final level.
Notes
Only explicitly entered gains and losses are included; real systems can have additional frequency, environment and equipment effects.