11. The helicopter is installed with a millimeter wave ( MMW ) fire control radar. 12. Thermal-based power meters are the norm for millimeter wave ( MMW ) RF work. 13. In line of sight, it would operate using laser guidance or a millimeter wave seeker. 14. However, no long-term studies have been done on the health effects of millimeter wave scanners. 15. This sweeps round the wall, beaming millimeter waves at you and recording the reflected signal. 16. The design could produce a total frequency range from visible light down to millimeter waves . 17. Millimeter waves pass through clothing, packaging, and building materials.18. The narrow beams required for high resolution target tracking are best achieved at millimeter wave frequencies. 19. Other sensor types have been flown for research purposes, including active and passive millimeter wave radar. 20. At most airports, the machines were replaced either by millimeter wave scanners or backscatter X-ray machines.
