Ex 3 Directional Antennas

0178-EX-CM-2018 Text Documents

General Motors Research Corporation

2018-09-29ELS_217103

                                              Exhibit #3

Directional Location of Re-Radiation Equipment

The GLI-Metro-G repeater (more specifically the passive transmitting antenna attached to the repeater)
is directional.

Below is the system diagram of the crash test facility with the proposed GPS repeater locations.
Repeater 1 is existing and is already included in the license. GMRC proposes to add Repeaters
2, 3, 4, 5, 6, 7, and 8.




                                                                                                     1


The following table provides information about the directionality and orientation of each of the
repeaters shown above.



 Repeater       Width of Beam in         Orientation in      Orientation in
               Degrees at the Half         Horizontal        Vertical Plane
                  Power Point                Plane           (degrees from
                                         (degrees from         horizontal)
                                             North)
     1         75 +/-5 at -3dB from           180             0-45 below
                       Peak                                   horizontal
                   (Free Space)
     2         75 +/-5 at -3dB from           180             0-45 below
                       Peak                                   horizontal
                   (Free Space)
     3         75 +/-5 at -3dB from           180             0-45 below
                       Peak                                   horizontal
                   (Free Space)
     4         75 +/-5 at -3dB from           180             0-45 below
                       Peak                                   horizontal
                   (Free Space)
     5         75 +/-5 at -3dB from            0              0-45 below
                       Peak                                   horizontal
                   (Free Space)
     6         75 +/-5 at -3dB from            0              0-45 below
                       Peak                                   horizontal
                   (Free Space)
     7         75 +/-5 at -3dB from            0              0-45 below
                       Peak                                   horizontal
                   (Free Space)
     8         75 +/-5 at -3dB from           180             0-45 below
                       Peak                                   horizontal
                   (Free Space)




                                                                                                   2



Document Created: 2018-09-12 13:45:49
Document Modified: 2018-09-12 13:45:49

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC