Uh-Oh, have I overloaded your input?
Don't let it bother you. The correct solution is whatever works best for you
RCA made it more complicated when they used the same model number for different antennas. It's been hard for me to keep track of it. I started experimenting with antennas when I was 8; I'm 86 now, and still learning.
Is that the box you got with your antenna that is shown above?