Absolutely! A good example might be the transmitter antenna height. We usually think of building roofs, or mountain peaks. But remember, there are organized groups that listen to orbiting satellites, some of which are many hundreds of miles away. And if your going for distance, the moon would be a good place to install your transmitting antenna, lol.How far a scanner can receive depends on many factors including but not limiting to what you are monitoring. .
Really too many variables to give an accurate answer, but many years ago when I was living in southeast Alabama I did, on occasion, pick up the California Highway Patrol on some of the Low-Band frequencies they were using at the time.how far away can a scanner recieve from?
Probably not "most" will go encrypted but many have and many more might...and are most police forces going to encryption?