Output and transmitters, the FCC ASR search only provides so much info. The more experienced guys have tasked me with figure out the details so I learn how to do it over them just telling me for our local stuff.
It lists towers (structures) and antennas (transmitters) separately. You can open a screen for each set of results and cross reference with the maps to be sure you are getting the info for the objects in the area you are looking at.