antennasporn

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Question:Why do sometimes microwave antennas have an red spark symbol or an red square symbol on the front of them?

65 upvotes

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52 upvotes

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14 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Question:Why do sometimes microwave antennas have an red spark symbol or an red square symbol on the front of them?	65
Cell tower wallpaper i found:	52
Some monopole microwave antenna swarm (any idea for what they use this one?)	14