RadioReference.com Forums

So, I haven't been monitoring MPSCS for all that long now because I'm in Clinton and they just came online as many have stated recently. So here is my question and I apologize beforehand if it sounds dumb, but how far away can one listen on the MPSCS system? Can one listen to other departments across the state, or does it really depend on antennas line of sight to the tower. Hopefully I phrased that correctly. Thanks