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The Association for the Advancement of Medical Instrumentation (AAMI) had an original recommended standard (1975) for pre-implantation testing of ICDs for an immunity level of 200 V/m in the 450 - 3000 MHz band (where mobile phones operate), although it was initially designed to cover microwave ovens and certain radar sources. A second revision (ANSI / AAMI PC69 2000: "Active Implantable Medical Devices Electromagnetic Compatibility - EMC Test Protocols for Implantable Cardiac Pacemakers and Implantable Cardioverter Defibrillators") specifies testing at 40 milliwatts net power into a dipole antenna using a pulsed signal over defined frequencies at 450, 600, 800, 825, 850, 875, 900, 930, 1610, 1850, 1910, 2450, and 3000 MHz, with the ICD in a saline tank, simulating exposure from various radio and mobile phone RF transmitters theoretically placed ~15 centimeters away from an implanted ICD. Future revisions will cover frequencies below 450 MHz (to address anti-theft devices) and above 3 GHz (to address new 5 GHz ISM wireless technologies, etc) |