Hello all, I just bought a Bearcat IV and I’m new to having a scanner that takes crystals. I have done my research and read other posts on here, but needed some clarification and guidance. When I’m searching for a crystal for the frequency I want to receive, do I search for that frequency? I.e. 46.16 or do I search for the 56.96 crystal because of the equation you have to do? Also, does anyone know any reputable dealers to still purchase crystals from? Thanks in advance!