Narrative

0621-EX-CN-2017 Text Documents

Thales Avionics, Inc.

2017-08-03ELS_196165

Thales Avionics, Inc. FCC Form 442 Exhibit 1 Request for Experimental Authority Thales Avionics, Inc. (“Thales”) herein requests experimental authority to demonstrate and test earth station facilities in connection with Iridium Constellation LLC’s non-geostationary satellite orbit space station constellation (Call Sign S2110) in the manner described below. Thales plans to begin testing on September 7, 2017 and seeks authority for a period of twenty-four (24) months. The nine (9) earth station terminals are prototype terminals that will be divided among five fixed locations. The proposed experimental earth station terminals will use electronic beam forming technology. The project will enable Thales to validate this electronic beam forming technology, and waveforms and extended waveforms on the space station constellation. Necessary Bandwidth Description The necessary bandwidth is determined by the frequency channelization that Iridium uses, and is filed with other Iridium licenses. The frequency of a center of an Iridium channel can be calculated by this equation. There are 270 channels numbered 1 to 270 for transmit and 7 more that are receive only. chanfrequency = 1616 × 106 + ((41.6666 × 103)) × ((channumber – 1) + 0.5)) MHz The Iridium frequency allocation thus defined spans 1616.0 to 1626.5 MHz. Directional Antenna Information – High Gain Antenna The antenna consists of multiple beams electronically switched in azimuth. The typical beam width is 60° and there are a minimum of 18 switched beams. The array is designed with symmetry about the z- axis so that there is no variability in EIRP nor beam shape as a function of azimuth. Each beam is shaped in elevation as shown in Table 1 below. The gain is the total gain from the Transceiver Modem (BCX) component (input to antenna) which is max of 6 dBm to reach the EIRP (dBW) the specified antenna gain is used. Antenna Gain (dBi) Angle over Horizon (degrees) EIRP (dBW) 41.2 90 (overhead) 16.8 41.0 80 15.8 40.4 70 13.8 41.1 60 16.3 41.1 50 16.3 40.4 40 14.0 40.9 30 15.6 40.9 20 15.6 40.4 10 and below 13.8 Table 1 - Elevation Pattern

Ground Station Locations 1) Thales Avionics, Inc. – 3 terminals 700 S. Babcock St. Melbourne, Brevard County, FL 32901 (28° 06’ 00’’ N 80° 37’ 12” W) 2) Thales Avionics, Inc. – 3 terminals 1110 W. Hibiscus Blvd. Melbourne, Brevard County, FL 32901 (28° 05’ 11’’ N 80° 38’ 44” W) 3) Honeywell – 1 terminal 21111 North 19th Avenue Phoenix, Maricopa County, AZ 85027 (33° 40’ 55’’ N 112° 05’ 53” W) 4) Dassault – 1 terminal 1 Airport Drive (LIT) Little Rock, Pulaski County, AK 72202 (34° 44’ 08’’ N 92° 13’ 57” W) 5) Boeing – 1 terminal 7501 12th Avenue South Seattle, King County, WA 98108 (47° 32’ 05’’ N 122° 19’ 05” W) Waveform Modulations Waveform ID Modulation Scheme Antenna Type Number of Carriers B1 (Block 1) DEQPSK LGA 1 C1 (NEXT) QPSK LGA 1 C2 (NEXT) QPSK LGA 1 1XC8 (NEXT) 16 APSK HGA 1 2XC8 (NEXT) 16 APSK HGA 2 B8 (open port) DEQPSK HGA 83 B16 (open port) DEQPSK HGA 164 3 Note: Transmits 7 carrier signals. The highest carrier (8th) is not used on uplink. 4 Note: Transmits 14 carrier signals. The 8th carrier and 16th carrier are not used on uplink.


Document Created: 2017-08-03 15:04:23
Document Modified: 2017-08-03 15:04:23
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