Clearly unethical, since it involves using technology to defeat the animal's senses. You need to be down on the ground, where the animal has a fair chance to detect you.
Anything that increases the kill range helps defeat an animals senses. everyone that uses a firearm or a bow or even a lance uses technology to help defeat the quarries senses and is therefore "unethical"?
Coyote Hunter - NRA Patriot Life, NRA Whittington Center Life, GOA, DAD - and I VOTE!
No, I'm not a Ruger bigot - just an unabashed fan of their revolvers, M77's and #1's.