. . . . . . . . . . . . . . . . . . "Defense Electronics (formerly RF Design) is a Penton Media trade magazine that covers radio frequency design. RF Design was started in 1978 ISSN 0163-321X and was published by Penton Media on a quarterly basis."@en . . . . "Defense Electronics (magazine)"@en . . . . "1007722896"^^ . . "USA"@en . . . "1657"^^ . . . . . . . . . "49396594"^^ . . . "Defense Electronics (formerly RF Design) is a Penton Media trade magazine that covers radio frequency design. RF Design was started in 1978 ISSN 0163-321X and was published by Penton Media on a quarterly basis."@en . . . "278"^^ . . . . "1978"^^ . . . . . . .