Hmm, SSB......Peak Envelope Reading (PEP), Average or Root Mean Square (RMS)?
Processed/compressed speech input and if so how much.....general talking or whistling up?
Into a 50 ohm resistive load or a Reactive (LC) load such as an antenna?
Sorry Andy, it all depends on how you're running and using it, (even power supply voltage will make differences). I know, probably not the simple answer most expect but typical of such things.
Guess for less than FM with typical average readings but much more with PEP readings. Even with PEP meters or whistling up that just shows your maximum and not what will generally be available during normal speech.
Bit of a moving target to measure and probably why you haven't found a video. (If you did there'd be pedants like myself posting such stuff in the comments section.
)
Either that'll be a lot of help, or none at all, but the intention was an honest one.
(Now you can see why such specifications vary wildly!)
All the best,
Victor