I have begun using the MFJ Attenuator to set(reduce) output power during the transmission. Example, 5W, 500mw, 50mw using the 10db and 20db settings at Start, then at 30 secs, then 60 secs, 90 secs. Observing the who hears me has been hard to determine because the antenna gain is not specified on the receiving station. So, I need a way to auto attenuate at specific time intervals, and to get a quasi antnna gain from browsing the receive station's antenna description. Sort of quasi science. This WSPR service is fascinating!
KF3EI