Free Space Loss Calculator

Free space loss calculation helps rf designers estimate the receive power strength for a given transmitter power.

Free space loss calculator. The free space path loss calculator takes into account the gain on both the receiving and transmitting antennas. Free space path loss calculator pasternack s free space path loss calculator calculates the loss in db between two antennas where the gain distance and frequency are known. As the ieee standard definitions of terms for antennas ieee 145 1983 states that a free space path loss is between two isotropic radiators.

This value is usually calculated by discounting any obstacles or reflections that might occur in its path. Calculator is based on recommendation itu r p 525 4 and allows you to calculate free space path loss depends on frequency and distance between tx and rx. Free space path loss assumes the space between the two antennas is an obstruction free line of sight straight path through the air.

To use the free space path loss calculator enter the figures as required and press calculate to provide the answer. Free space loss calculator free space loss is the power loss of a radio signal as it travels through free space. Rf link budget calculator refer rf budget calculator with image and equations mentioned below.

Ieee defines it as the loss between two isotropic radiators in free space expressed as a power ratio. It helps determine the line of sight distance. Free space path loss calculator free space path loss is used the calculate the attenuation reduction of signal strength between two antennas.

Bookmark or favorite this page by pressing ctrl d. The inverse function of free space path loss is used in the friis transmission equation. Free space path loss formula following free space path loss formula is used in this calculator to calculate path loss from distance and carrier frequency.

Free space path loss is often given in decibels so this calculator calculates the decibel value of fspl as well. If you ignore the gain at either end i e the transmitting and receiving end then the fspl would just be a factor of the frequency and distance. The calculator below is a path loss calculator because it includes the antenna gains.