Antenna test diagram and signal description

1406-EX-ST-2019 Text Documents

Umbra Lab

2019-07-31ELS_234973

Directional Antenna Information, Antenna Sketch, Modulating Signal Description, and Proposed Test locations Umbra Lab Inc File # 1406-EX-ST-2019 DISTRIBUTION STATEMENTS: Document Data Unrestricted EXPORT CONTROL STATEMENTS: This document contains no export controlled information. Subject to the Restrictions on the Title Page of this Document.

Top Down View of UMBRA Lab Airborne test HPBW1 Illuminated Area Max ERP = 3.2 W HPBW2 HPBW1 = +/- 3.5° Azimuth Angle HPBW2 = +/- 10.6° Range Angle Note: Half Power Beam Width (HPBW) is the -3dB Beamwidth 2 Subject to the Restrictions on the Title Page of this Document.

Side View of UMBRA Lab Airborne test Altitude < 3,200 m Boresight Elevation HPBW = Elevation Angle = 60° from Nadir +10.6° HPBW = Elevation Angle -10.6° Note: Half Power Beam Width (HPBW) is the -3dB Beamwidth 3 Subject to the Restrictions on the Title Page of this Document.

Modulating Signal Description ➢ Modulation ➢ Linear Frequency Up-chirp or Down-chirp of carrier ➢ Modulated Signal Bandwidth = 1,200 MHz max ➢ PRF = 2,000 to 8,000 Hz ➢ Duty Cycle < 20% 4 Subject to the Restrictions on the Title Page of this Document.

Ground test location Mobile ground test located at: N34°29’32” , W119°40’46” Los Padres National Forest Spotlight image of Gibraltar dam for performance benchmark Test duration: 10 scans at 7 seconds each over <60 minutes Santa Ynez Mountains in total Santa Barbara Goleta Subject to the Restrictions on the Title Page of this Document.

Proposed ground tracks and waypoints for flight test The approximate flight path is shown here, with way points indicated by their number, and listed in the table. The shaded boxes indicate the approximate stripmap of data that will be collected on each respective path, indicating when the radar equipment will be active. The path allows for variation in takeoff and landing at Santa Barbara Airport, as no stripmaps begin or end within the immediate vicinity. The path Way Latitude Longitude also maintains a reasonable proximity to Santa Barbara Airport, resulting in a flight Point (deg) (deg) path length of about 70 miles and should take approximately 40 minutes. 1 34.42773816 -119.83834852 2 34.37660890 -119.68130993 3 34.39366911 -119.50041752 4 34.28220499 -119.42275024 5 34.38043272 -119.59295927 6 34.34327249 -119.74037932 7 34.39196721 -119.76253322 8 34.35695781 -119.88176697 9 34.40148724 -119.96943450 Subject to the Restrictions on the Title Page of this Document.


Document Created: 2019-07-31 15:53:33
Document Modified: 2019-07-31 15:53:33
© 2026 FCC.report
This site is not affiliated with or endorsed by the FCC