‘Several online retailers and drone technology companies are marketing the sale of radio frequency jammers as drone deterrence or privacy tools, sidestepping federal laws that prohibit such devices from being offered for sale in the U.S….

…The Federal Communications Commission has warned that jammers can interfere with emergency communications, disrupt normal phone use and have other unintended consequences such as confusing airport navigation systems. According to the FCC, jammers are illegal to sell and may not be operated, marketed or imported into the United States. In general, even local police aren’t legally allowed to use them.’

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