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.
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.
We are buying a house which has a Ten Panel PV installation that has ben running since 2011. The installation is effectively for free. I have seen several figures about the expected reduction in output power but I'm wondering about other processes, apart from the cells getting old, that could...