What is the potential for Radio Frequency Interference (RFI)?
Every radio transmitting facility has the potential to interfere with other radio spectrum users. To determine the potential for HAARP’s transmissions to interfere inadvertently with other spectrum users such as Alaskan TV, AM/FM radio, ham radio, or even with HAARP’s own sensitive radio receiving equipment, a comprehensive RFI study was conducted during the environmental impact study phase. Theory predicted that in several worst-case scenarios, interference may be encountered by some nearby users sharing the RF spectrum. On the other hand, the real world experiences of similar ionospheric research instruments and radar diagnostics employed elsewhere in the world have shown that compatible operations are practical. Included in HAARP’s frequency application to the Spectrum Planning Subcommittee of the National Telecommunications and Information Administration (NTIA) is the commitment to a mitigation program that includes acquisition of state-of-the-art transmitters with stringent requir
