Transmitter power output

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Transmitter power output" – news · newspapers · books · scholar · JSTOR (May 2022) (Learn how and when to remove this message)

In radio transmission, transmitter power output (TPO) is the actual amount of power (in watts) of radio frequency (RF) energy that a transmitter produces at its output.^[1]

TPO is a concept related to effective radiated power (ERP), but refers to the power output of a transmitter, without accounting for antenna gain. The ERP for VHF/UHF transmitters is normally more than the TPO, for LF/MF transmitters it has nearly the same value, while for VLF transmitters it may be less.^{[clarification needed]}

The

The basic equation relating transmitter to effective power is:

${\displaystyle TPO\ \times \ loss_{feedline}\ \times \ gain_{antenna}\ =\ ERP}$

Note that in this formula the Antenna Gain is expressed with reference to a dipole (