Depending on what scanner you're using, it is difficult to answer your question with any degree of certainty as there are many variables to consider, such as distance from the tower, obstructions between your antenna and the tower, etc. KHP does simulcast, to a degree, on one of the Saline County channels (I can't remember which one right off the top of my head). One thing you may try, if you are able, is to enable your attenuator and see if that helps your reception on your outdoor antenna. It's possible the signal is so strong it is overloading the front end of your scanner.