Gain

{
  "id": "MLC-T-MET-005863",
  "term": "Gain",
  "field": "Meteorology and atmospheric science",
  "definition": "A measure of a radar or radio antenna's ability to direct or concentrate a radio frequency signal in a particular direction. It quantifies how much more power is transmitted or received in the direction of peak radiation compared to a theoretical isotropic antenna, which radiates equally in all directions. Antenna gain is expressed in decibels relative to an isotropic source (dBi) or a half-wave dipole (dBd).",
  "url": "https://mlchart.com/terminology/meteorology/gain/"
}