Default A321 Radio Stack

I have a question about the default Airbus A321 in Flight Simulator X, When I access the radio stack and attempt to put in the ILS freq, I can't put in less than 118.000. For instance im trying to put in 109.300, The Radio Stack will not let me do so, it resets either between 118.000 to 136.000. I checked some videos of people using the Radio Stack on Youtube, and it works fine with them. Could someone help me with this problem? Thank you.