programming IC400PRO by icom
You'll have to have your 400pro hooked up to your PC and powered up to programme channels and make adjustments, I have the narrow band 80ch data file but i'm having trouble up loading it. To up the TX power in the add Freq screen you should see the RF pwr column if you double click on it L1,L2 and H will come up. Click on H to give you the High power.
However be aware that 25w can only be used on Registered Freq an 5W is the max power on the 80ch uhf CB. Hope this helps!