The Martha’s Vineyard Commission this week approved construction of a temporary 104-foot cell tower on Chappaquiddick, a proposal that has divided residents on the small island that lies off the eastern end of Edgartown.

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A brief, 527-foot ferry ride separates Edgartown proper from Chappaquiddick. But assume that voyage, and you step off the grid, surrendering access to reliable cell phone reception and the internet.
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