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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Dirtbox (cell phone) ： ウィキペディア英語版 Dirtbox (cell phone) A dirtbox (or DRT box) is a cell site simulator; a phone device mimicking a cell phone tower. The device is designed to create a signal strong enough within a short range so as to force dormant mobile phones to automatically switch over to it. It is used by the U.S. Marshals Service mounted on aircraft all over the U.S. to detect and locate cell phones and thus collect information, and can be used to jam. The name stems from the company that originally developed it, Digital Receiver Technology, Inc., abbreviated DRT, owned by the Boeing company. Boeing describes the device as a hybrid of "jamming, managed access and detection". A similar device with a more limited range that has been widely used by US federal entities including the FBI is the controversial stingray phone tracker. == History == It is not known when Digital Receiver Technology, Inc. (DRT) first manufactured the dirtbox. DRT does not publicly advertise the dirtbox, stating "Due to the sensitive nature of our work, we are unable to publicly advertise many of our products" on its website. The ''Wall Street Journal'' wrote that the program by the marshals service "fully matured by 2007". Similar devices from the Harris Corporation, like the stingray phone tracker, have been sold around the same time. Since 2008 their airborne mounting kit for cell phone surveillance have been said to cost $9,000. On June 11, 2010, the Boeing Company had asked the National Telecommunications and Information Administration to advise US Congress that the "...Communications Act of 1934 be modified to allow prison officials and state and local law enforcement to use appropriate cell phone management".〔 It suggested special weapons and tactics (SWAT) teams and other paramilitary tactical units could control wireless communications in a building during a raid.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dirtbox (cell phone)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.