Transmitter power output

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]}

^ Morrow, Walter E. (1977-01-01), Napolitano, L. G. (ed.), "CURRENT AND FUTURE COMMUNICATION SATELLITE TECHNOLOGY**This work was sponsored by the Department of the Air Force.", Space and Energy, Pergamon, pp. 277–296, ISBN 978-0-08-021053-7, retrieved 2022-05-02

[1] Morrow, Walter E. (1977-01-01), Napolitano, L. G. (ed.), "CURRENT AND FUTURE COMMUNICATION SATELLITE TECHNOLOGY**This work was sponsored by the Department of the Air Force.", Space and Energy, Pergamon, pp. 277–296, ISBN 978-0-08-021053-7, retrieved 2022-05-02

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