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Portable wireless lan device and two-way radio threat assessment for aircraft navigation radios
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Koppen, Sandra V. Ely, Jay J. Salud, Maria Theresa P. Williams, Reuben A. Nguyen, Truong X. Smith, Laura J. |
| Copyright Year | 2003 |
| Description | Measurement processes, data and analysis are provided to address the concern for Wireless Local Area Network devices and two-way radios to cause electromagnetic interference to aircraft navigation radio systems. A radiated emission measurement process is developed and spurious radiated emissions from various devices are characterized using reverberation chambers. Spurious radiated emissions in aircraft radio frequency bands from several wireless network devices are compared with baseline emissions from standard computer laptops and personal digital assistants. In addition, spurious radiated emission data in aircraft radio frequency bands from seven pairs of two-way radios are provided, A description of the measurement process, device modes of operation and the measurement results are reported. Aircraft interference path loss measurements were conducted on four Boeing 747 and Boeing 737 aircraft for several aircraft radio systems. The measurement approach is described and the path loss results are compared with existing data from reference documents, standards, and NASA partnerships. In-band on-channel interference thresholds are compiled from an existing reference document. Using these data, a risk assessment is provided for interference from wireless network devices and two-way radios to aircraft systems, including Localizer, Glideslope, Very High Frequency Omnidirectional Range, Microwave Landing System and Global Positioning System. The report compares the interference risks associated with emissions from wireless network devices and two-way radios against standard laptops and personal digital assistants. Existing receiver interference threshold references are identified as to require more data for better interference risk assessments. |
| File Size | 23373883 |
| Page Count | 227 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20030067884 |
| Archival Resource Key | ark:/13960/t9m37s79j |
| Language | English |
| Publisher Date | 2003-07-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Communications And Navigation Microwave Landing Systems Radio Frequencies Boeing 747 Aircraft Aircraft Communication Electromagnetic Interference Global Positioning System Risk Boeing 737 Aircraft Local Area Networks Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
