How do I build a long range motion detector?
I am interested in building a motion detector with an alarm that reaches approximately 200 yards from my house. I have a bait station set up to attract coyotes and want to be alerted during the night when they show. In the past I have installed security systems but have limited knowledge of circuitry and am interested in a relatively simple set up. I was picturing a wired system and am interested in hearing some options.