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A comment on I amplified my home's Wi-Fi with aluminum foil. Parent comment

Re:I amplified my home's Wi-Fi with aluminum foil by gonzo on Tuesday December 26, 2017 @09:29PM (#16012429)
Most antennae are retro directive. Gain is gain.
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Re:I amplified my home's Wi-Fi with aluminum foil by throwaway613834 on Tuesday December 26, 2017 @09:50PM (#16012500)
I replied here: https://news.ycombinator.com/item?id=16012484
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