What Does SWR Stand For?

SWR stands for Standing Wave Ratio

SWR, or Standing Wave Ratio, is a measurement used in radio frequency (RF) engineering to quantify the efficiency of power transmission from a source through a transmission line to a load. It specifically reflects the amount of reflected power versus the amount of transmitted power, indicating how well the load is matched to the line. An SWR value of 1:1 signifies perfect matching, while higher values indicate increasing levels of signal reflection, which can lead to reduced performance and potential damage to transmission equipment.