Are we talking about 1070 KFTI Wichita?
KFTI was not 1 kw day and a few watts at night
I worked for a few AMs in my career that did sports.. and i can absolutely assure everyone they didnt stay on high power during my time there.
At one station in the midwest plains... i could about see the tower light 2 miles away but some nights, KRLD 1080 HD Hash and KRCN 1060 Denver on high power would wreak some havic with the signal. 1kw day and 20 some odd watts at night at that point
At another station on the eastern edge of the midwest, with 5kw day 44 watts night directional... we always dropped power. If we didnt its real noticeable in the greater ether of the universe
KNLV Ord, NE