The Transmitters tab is where you should start. In this tab, you
add a transmitter for each one you want to run calculations for.
You get to pick the name, but the names must be unique, so if you
have three of one radio, give them a suffix or something.
After clicking on "Add a transmitter", you will be prompted to "Add
a band" for that transmitter. Just like your real radio, each
transmitter here can have its own bands. It will continue to
prompt you to add new bands until you hit "Cancel". If you decide
at some later time to add more bands, you can manually click on the
"Add a band" link inside the transmitter box. Deleting or editing
the bands and/or transmitters can be done with those links as well.
As you add the bands, you specify information on how you will be
using that band for this calculator. For example, if you typically
use 50W on the 80m band while using CW, you should enter that data
there. This way, you can model your real-life usage of the radio.
In addition, you should enter your usage windows for controlled and
uncontrolled exposure. Remember that the controlled exposure
window is six minutes long and the uncontrolled window is 30
minutes. These two fields here are not in minutes, but rather in
percentage. So fill in the percentages appropriately.
If you are using an amplifier with your radio, you can just assume
that the radio is putting out the amplifier's output for the sake
You only get to fill out each band once per transmitter, so use the
highest power configuration you plan on using. Note that the
various modulation modes and exposure percentages will also reduce
the total RFE in the calculations.
After adding all your transmitters and transmitter bands, go on to
the Antennas tab.