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A comment on Show HN: I'm a robot tech enthusiast and this is my robot website. Parent comment

Re:Show HN: I'm a robot tech enthusiast and this is my robot... by raesene9 on Friday March 08, 2019 @08:37AM (#19337343)
They do have radio collars, but those only have a range of 1/4 mile or so. There are GPS equivalents but the battery life/size has never been ideal.
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