13 GHZ BAND CORRECTION SUPPLEMENT by INTELSAT LICENSE LLC SES-STA-20160503-00390 SESSTA2016050300390S

Attachment SESSTA2016050300390S

SESSTA2016050300390S

SUPPLEMENT submitted by INTELSAT LICENSE LLC

13 GHZ BAND CORRECTION

2016-05-13

This document pretains to SES-STA-20160503-00390 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2016050300390_1136818

Exhibit A
Intelsat Licences LLC
Nuevo, California
VERTEX 9 Meter Earth Station
Call Sign: E060384

1. Background

This Exhibit is presented to demonstrate the extent to which the Intelsat License LLC ("Intelsat") satellite earth
station inNuevo, California is in compliance with the Federal Communications Commision ("FCC") Report and
Order 96‐377. The potential inteference from the earth station to U.S. Navy shipboard radiolocation
operations ("RADAR") and the National Aeronautics and Space Administration ("NASA") space research
activities in the 13.75‐14.0 GHz band is addressed in this exhibit. The parameters for the earth station are:

Coordinates (NAD83): 33° 47’ 47.3” N, 117° 5’ 15.0” W
Satellite Location for Earth Station: IS‐31 at 181˚W to 44˚W
Frequency Band: 13.75‐14.00 GHz
Polarizations: Linear & Circular
Emissions: 900KF2D
Modulation: FM/PCM/PSK
Maximum Aggregate Uplink EIRP: 85dBW for all Carriers
Transmit Antenna Characteristics
Antenna Size: 9 Meters in Diameter
Anenna Type/Model: VERTEX
Gain: 64 dBi
RF Power into Antenna Flange: 21 dBW or ‐2.5 dBW/4kHz
Minimum Elevation Angle: 12.13˚ @ 255.4˚ Azimuth
5.33˚ @ 99.6˚ Azimuth
Side Lobe Angenna Gain FCC Reference Pattern

Because the above uplink spectrum is shated with the Federal Government, coordination in this band requires
resolution data pertaining to potential interference between the earth stations and both U.S. Navy
Department and NASA systems. Potential intefference from the earth station could impact the U.S. Navy
and/or NASA systems in two areas. These areas are noted in GCC Report and Order 96‐377 dated September
1996, and consist of (1) Radiolocation and Radio Navigation, (2) Data Relay Satellites.

Summary of Coordination Issues:
a.) Potential Impact to Governemnt Radiolocation (Shipboard Radar)
b.) Potential Impact to NASA Tracking and Data Relay Satellite Systems ("TDRSS")

$Exhibit A 2. Potential Impact to Government Radiolocation (Shipboard Radar) Radiolocation operations ("RADAR") may occur anywhere in the 13.4‐14.0 GHz frequency band aboard ocean‐ going U.S. Navy ships. FCC order 96‐377 allocates the top 250MHz of this 600 MHz band to the Fixed Satellite Service ("FSS") on a co‐primary basis with the radiolocation operations and provides for an interference protection level of ‐167 dBW/m2/4kHz. The closest distance to the shoreline from Nuevo, California earth station is approximately 63 km southwest toward the Pacific Ocean. The calculation of the power spectral density at this distance is given by: 1. Clear Sky EIRP: 85 dBW 2. Carrier Bandwidth: 900 kHz 3. PD at antenna input: ‐2.5 dBW/4kHz 4. Transmit Antenna Gain: 64 dBi 5. Antenna Gain to Horizon: 1.9 dBi 6. Antenna Elevation Angles: 12.1˚ @ 255.4˚ azimuth 5.3˚ @ 99.6˚ azimuth The earth station will radiate interference toward the ocean according to its off‐axis side‐lobe performance. A conservative analysis, using FCC standard reference pattern, results in an off‐axis antenna gain of 1.9 towards the Pacific Ocean. The signal density at the shoreline, through free space is: PFD = Antenna Feed Power density (dBW/4kHz) + Antenna Off‐Axis Gain (dBi) ‐ Spread Loss (dBW/m2) = ‐2.5dBW/4kHz + 1.9dBi ‐ 10*log[4*(63km)^2] = ‐107.6 dBW/m/4kHz ‐ Additional Path Losses (63.4 dB) Our calculation indicate additional path loss of approximately 63.4 dB including absorbtion loss and earth diffraction loss for the actual path profiles from the earth station to the nearest shoreline. The calculated PFD, including additional path losses to the closest shoreline, is ‐171dbW/ m^2/4 kHz. This is 4dB below the ‐167.0 dBW/ m^2/4 kHz interference criteria of the R&O 96‐377. Therefore, there should be no interference to the U.S. Navy RADAR from the Nuevo, California earth station due to the distance and the terrain blockage between the site and the shore. 3. Potential Impact to NASA's Tracking and Data Relay Satellite System The geographic location of the Intelsat earth station in Nuevo, California is outside the 390 km radious coordination contour surrounding NASA's White Sands, New Mexico ground station complex. Therefore the TDRSS space‐to‐earth link will not be impacted by the Intelsat earth station in Nuevo, California.$

Exhibit A

The TDRSS space‐to‐space link in the 13.772 to 13.778 GHz band is assumed to be protected if an earth station
produces and EIRP of less than 71 dBW/6MHz in this band. The 9 meter earth station antenna will not
transmit in this band. Therefore, there will be no potential interference to the TDRSS space‐to‐space link.

4. Coordination Result Summary and Conclusions

The results of the analysis and calculation performed in this exhibit indicate that compatible operation
between the earth station at the Nuevo, California facility and U.S. Navy and NASA TDRSS space‐to‐earth and
space‐to‐space links are possible. No interference to U.S. Navy RADAR or NASA TDRSS operations from the
Nuevo, California site earth station should occur.

Document Created: 2016-05-24 13:16:24
Document Modified: 2016-05-24 13:16:24