This is basically a calculator for link power analysis given various values in a satellite communication system.

This section provides several tutorials on Satellite Communications, including satellite systems, link budgeting, satellite pointing angle calculator, and other related topics.

The article provides a guide for link power budgeting in satcom. Link budgeting is a term used to estimate the size and electrical parameters required for various satellite system components such as antenna, high power amplifier (HPA), LNC, satellite dish etc. Check out the full tutorial there.