pae power
In figuring out the output power, you also need to keep in mind saturated output power and linearity backoff. PA's have a saturated output power, which is the maximum output power that they will output. Typically, in saturation, a PA will suffer from lot's of spectral re-growth, and so the output spectrum can degrade for non-constant envelope modulations.
PA Backoff is the amount of output power below saturation that you need to operate, to keep the linearity. For example, a PA with a +33 dBm Psat, operated at +6 dB backoff, will put out +27 dBm. If you have 25 dB of gain in the PA, then your input needs to stay below +2 dBm.
Dave