I have started using FLDIGI and PSK-31. I have a question about setting up the transmit so I don't overdrive the signal. My setup is an Icom 7100 (max 100W) and a Vibroplex 40/20/10 end fed half wave (max 25W). Most advice I have seen is 'turn the radio all the way up and use the software to make sure the ALC barely registers'. For my situation does 'turn the radio all the way up' mean 100W or 25W? If I turn the radio to 100W how do I know I am not sending too much power through the antenna, other than watching the SWR meter? I have the radio set at 25W and the ALC is above the minimum but not hitting the max. I have gotten good signal reports from my QTH in North Texas to Florida (SN 31dB, IMD -31dB) and North Carolina. A Ham in Florida sent me screenshots from FLDIGI of my signal and it looked really good. Thanks in advance for your help.