Scientific American: Cell Phones Could Conceivably Conflict with Avionics
Latest research indicates that cell phone emissions are not totally without risk. Full story here.
“…researchers at Carnegie Mellon University concluded that cell phones and other PEDs could endanger the normal operation of critical navigation systems on aircraft. After monitoring radio emissions from portable electronics during airline flights (with an antenna and spectrum analyzer that fit into a carry-on bag), they estimate that an average of one to four cellular calls are made from the cabin during each trip–despite the ban. The researchers also determined that some of the emissions from mobile phones occurred in frequencies employed by Global Positioning System (GPS) receivers, which are increasingly vital for safe landings. In addition, the study warned that avionics that operate at non-cell phone frequencies could encounter interference when nearby wireless signals interact and generate spurious spikes in other frequency ranges.”




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