I monitor a p25 simulcast system that has about 10 sights. But I was wondering what if I were to program the control channels from different sights(tower) under one sight in the scanner .. would it automatically pick up the sight(tower) that I'm close to and when I travel towards another tower would it automatically switch. Of course the id's I'm lisenting to would have to be associated with those towers but would it work?? Sorry if I don't make any sense or if I ain't using the correct terms. This is just a thought I have and wanted to see if any one has programmed there scanner like this ???