Antenna Information Coordination

0461-EX-CN-2018 Text Documents

Atlas Space Operations, Inc.

2018-06-12ELS_211005

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                     Prepared for
             Atlas Space Operations, Inc.
                    MOJAVE, CA
                Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                    May 09, 2018


                                                      TABLE OF CONTENTS
1. CONCLUSIONS ............................................................................................................................................ 3
2. SUMMARY OF RESULTS ............................................................................................................................ 4
3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5
4. EARTH STATION COORDINATION DATA .................................................................................................. 7
5. CERTIFICATION ......................................................................................................................................... 11




Frequency Coordination and Interference Analysis Report                                             05/09/2018                        Page 2 of 11


1. CONCLUSIONS



An interference study considering all existing, proposed and prior coordinated microwave
facilities within the coordination contours of the proposed earth station demonstrates that
this site will operate satisfactorily with the common carrier microwave environment. Further,
there will be no restrictions of its operation due to interference considerations.




Frequency Coordination and Interference Analysis Report    05/09/2018          Page 3 of 11


2. SUMMARY OF RESULTS


A number of great circle interference cases were identified during the interference study of
the proposed earth station. Each of the cases, which exceeded the interference objective
on a line-of-sight basis, was profiled and the propagation losses estimated using NBS
TN101 (Revised) techniques. The losses were found to be sufficient to reduce the signal
levels to acceptable magnitudes in every case.

The SBE coordinator for the region where the earth station is located expressed concern
on receive locations that did not appear in the interference study of this site. Atlas Space
Operations has agreed to perform joint testing with the SBE coordinator after the earth
station has been placed into operation and was granted conditional clearance from the SBE
coordinator pending successful results from the proposed testing.


No other carriers reported potential interference cases.




Frequency Coordination and Interference Analysis Report    05/09/2018         Page 4 of 11


3. SUPPLEMENTAL SHOWING
Pursuant to Part 25.203(c) of the FCC Rules and Regulations, the satellite earth station proposed in this
application was coordinated by Comsearch using computer techniques and in accordance with Part 25 of the
FCC Rules and Regulations.

Coordination data for this earth station was sent to the below listed carriers with a letter dated 04/04/2018.

        Company
        3G Wireless, LLC
        ABC Holding Company Inc.
        AERIAL VIDEO SYSTEMS
        Alascom Inc
        Borgeson, Tom R.
        Broadcast Sports Inc.
        CBS Broadcasting Inc
        Casper, John
        Chicago Comnet Corp
        Citywide News Network, Inc.
        Cowboys Stadium LP
        CP Communications, LLC
        DCI II, INC.
        Direct Broadcast Services, Inc.
        Ellis Communications Kdoc Licensee, LLC
        Entravision Holdings, LLC
        Fox Television Stations, LLC
        Fox Television Stations, LLC (KTTV)
        Frontier California Inc.
        Heiden, William
        Im360 Entertainment
        Interlink Network Corp
        Information Super Station, LLC
        International Electronic Information Services, Inc.
        KFSN Television, LLC
        KFTV License Partnership GP
        KMEX License Partnership GP
        KMPH Licensee, LLC
        KRCA License LLC
        KTLA, LLC
        Ksby Communications, LLC
        Loop Inc.
        Los Angeles Television Station Kcal LLC
        Microwave Video Systems, LLC
        NBC Telemundo License LLC
        NEXSTAR BROADCASTING, INC.
        NPG of California, LLC
        NSM Surveillance
        Onboard Images
        Pacific Television Center
        REMOTE FACILITIES CONSULTING SERVICES



Frequency Coordination and Interference Analysis Report                 05/09/2018              Page 5 of 11


       RF Film, Inc
       Randy Hermes Production
       SBE Coordinator
       Scripps Broadcasting Holdings LLC
       Sinclair Bakersfield Licensee, LLC
       Speedshotz, Inc
       TTWN Networks, LLC, as debtor in possession
       Trinity Christian Center of Santa Ana
       Unisat, Inc.
       Univision Bakersfield LLC
       Vistawest California, LLC
       Vitec Broadcast Services, Inc.
       Winged Vision Inc
       Wolfe Air Aviation




Frequency Coordination and Interference Analysis Report   05/09/2018   Page 6 of 11


4. EARTH STATION COORDINATION DATA
This section presents the data pertinent to frequency coordination of the proposed earth station that was
circulated to all carriers within its coordination contours.




Frequency Coordination and Interference Analysis Report            05/09/2018            Page 7 of 11


                                                          COMSEARCH
                                                       Earth Station Data Sheet
                                             19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                               (703)726-5500 http://www.comsearch.com

Date:                                    05/09/2018
Job Number:                              180404COMSGE03
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign
Licensee Code                            ATLSPC
Licensee Name                            Atlas Space Operations, Inc.
Site Information                         MOJAVE, CA
Venue Name
Latitude (NAD 83)                        35° 3' 51.1" N
Longitude (NAD 83)                       118° 9' 44.2" W
Climate Zone                             A
Rain Zone                                4
Ground Elevation (AMSL)                  849.79 m / 2788.0 ft
Link Information
Satellite Type                           Low Earth Orbit
Mode                                     TO - Transmit-Only
Modulation                               Digital
Minimum Elevation Angle                  5.0°
Azimuth Range                            0.0° to 360°
Antenna Centerline (AGL)                 2.74 m / 9.0 ft
Antenna Information                            Transmit - FCC32
Manufacturer                                   Orbital Systems
Model                                          3.0 meter
Gain / Diameter                                34.0 dBi / 3.0 m
3-dB / 15-dB Beamwidth                         1.00° / 2.00°

Max Available RF Power        (dBW/4 kHz)      -20.0
                              (dBW/MHz)        4.0

Maximum EIRP                  (dBW/4 kHz)      14.0
                              (dBW/MHz)        38.0

Interference Objectives:    Long Term          -154.0 dBW/4 kHz 20%
                            Short Term         -131.0 dBW/4 kHz 0.0025%
Frequency Information                          Transmit 2.0 GHz
Emission / Frequency Range (MHz)               5M00G7W / 2082.0


Max Great Circle Coordination Distance         220.0 km / 136.7 mi
Precipitation Scatter Contour Radius           100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                    05/09/2018          Page 8 of 11


                                                  COMSEARCH
                                              Earth Station Data Sheet
                                     19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                       (703)726-5500 http://www.comsearch.com


Coordination Values             MOJAVE, CA
Licensee Name                     Atlas Space Operations, Inc.
Latitude (NAD 83)                 35° 3' 51.1" N
Longitude (NAD 83)                118° 9' 44.2" W
Ground Elevation (AMSL)           849.79 m / 2788.0 ft
Antenna Centerline (AGL)          2.74 m / 9.0 ft
Antenna Model                     Orbital 3 meter
Antenna Mode                             Transmit 2.0 GHz
Interference Objectives: Long Term       -154.0 dBW/4 kHz 20%
                         Short Term      -131.0 dBW/4 kHz 0.0025%
Max Available RF Power                   -20.0 (dBW/4 kHz)

                                                              Transmit 2.0 GHz
               Horizon            Antenna                 Horizon        Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)
 0              0.00              75.29                    4.50           220.00
 5              0.00              71.04                    4.50           220.00
 10             0.00              66.83                    4.50           220.00
 15             0.00              62.68                    4.50           220.00
 20             0.00              58.60                    4.50           220.00
 25             0.00              54.61                    4.50           220.00
 30             0.00              50.74                    4.50           220.00
 35             0.00              47.02                    4.50           220.00
 40             0.00              43.50                    4.50           220.00
 45             0.00              40.23                    4.50           220.00
 50             0.00              37.27                    4.50           220.00
 55             0.00              34.70                    4.50           220.00
 60             0.00              32.63                    4.50           220.00
 65             0.00              31.16                    4.50           220.00
 70             0.00              30.36                    4.50           220.00
 75             0.00              30.30                    4.50           220.00
 80             0.00              30.98                    4.50           220.00
 85             0.00              32.35                    4.50           220.00
 90             0.00              34.33                    4.50           220.00
 95             0.00              36.82                    4.50           220.00
100             0.00               39.72                   4.50           220.00
105             0.00               42.95                   4.50           220.00
110             0.00               46.44                   4.50           220.00
115             0.00               50.12                   4.50           220.00
120             0.00               53.97                   4.50           220.00
125             0.00               57.94                   4.50           220.00
130             0.00               62.01                   4.50           220.00
135             0.00               66.15                   4.50           220.00
140             0.00               70.35                   4.50           220.00
145             0.00               74.59                   4.50           220.00
150             0.00               78.87                   4.50           220.00
155             0.00               83.17                   4.50           220.00
160             0.00               87.49                   4.50           220.00
165             0.00               91.81                   4.50           220.00
170             0.00               96.12                   4.50           220.00
175             0.00              100.43                   4.50           220.00
180             0.00              104.71                   4.50           220.00
185             0.00              108.96                   4.50           220.00




Frequency Coordination and Interference Analysis Report                05/09/2018        Page 9 of 11


                                                  COMSEARCH
                                              Earth Station Data Sheet
                                     19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                       (703)726-5500 http://www.comsearch.com


Coordination Values             MOJAVE, CA
Licensee Name                     Atlas Space Operations, Inc.
Latitude (NAD 83)                 35° 3' 51.1" N
Longitude (NAD 83)                118° 9' 44.2" W
Ground Elevation (AMSL)           849.79 m / 2788.0 ft
Antenna Centerline (AGL)          2.74 m / 9.0 ft
Antenna Model                     Orbital 3 meter
Antenna Mode                             Transmit 2.0 GHz
Interference Objectives: Long Term       -154.0 dBW/4 kHz 20%
                         Short Term      -131.0 dBW/4 kHz 0.0025%
Max Available RF Power                   -20.0 (dBW/4 kHz)

                                                              Transmit 2.0 GHz
               Horizon            Antenna                 Horizon        Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)
190             0.00              113.17                   4.50           220.00
195             0.00              117.32                   4.50           220.00
200             0.00              121.40                   4.50           220.00
205             0.00              125.39                   4.50           220.00
210             0.00              129.26                   4.50           220.00
215             0.00              132.98                   4.50           220.00
220             0.00              136.50                   4.50           220.00
225             0.00              139.77                   4.50           220.00
230             0.00              142.73                   4.50           220.00
235             0.00              145.30                   4.50           220.00
240             0.00              147.37                   4.50           220.00
245             0.00              148.84                   4.50           220.00
250             0.00              149.64                   4.50           220.00
255             0.00              149.70                   4.50           220.00
260             0.00              149.02                   4.50           220.00
265             0.00              147.65                   4.50           220.00
270             0.00              145.67                   4.50           220.00
275             0.00              143.18                   4.50           220.00
280             0.00              140.28                   4.50           220.00
285             0.00              137.05                   4.50           220.00
290             0.00              133.56                   4.50           220.00
295             0.00              129.88                   4.50           220.00
300             0.00              126.03                   4.50           220.00
305             0.00              122.06                   4.50           220.00
310             0.00              117.99                   4.50           220.00
315             0.00              113.85                   4.50           220.00
320             0.00              109.65                   4.50           220.00
325             0.00              105.41                   4.50           220.00
330             0.00              101.13                   4.50           220.00
335             0.00               96.83                   4.50           220.00
340             0.00               92.51                   4.50           220.00
345             0.00               88.19                   4.50           220.00
350             0.00               83.88                   4.50           220.00
355             0.00               79.57                   4.50           220.00




Frequency Coordination and Interference Analysis Report                05/09/2018        Page 10 of 11


5. CERTIFICATION


I HEREBY CERTIFY THAT I AM THE TECHNICALLY QUALIFIED PERSON RESPONSIBLE FOR THE
PREPARATION OF THE FREQUENCY COORDINATION DATA CONTAINED IN THIS APPLICATION,
THAT I AM FAMILIAR WITH PARTS 101 AND 25 OF THE FCC RULES AND REGULATIONS, THAT I HAVE
EITHER PREPARED OR REVIEWED THE FREQUENCY COORDINATION DATA SUBMITTED WITH THIS
APPLICATION, AND THAT IT IS COMPLETE AND CORRECT TO THE BEST OF MY KNOWLEDGE AND
BELIEF.




BY: _

Gary K. Edwards
Senior Manager
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, VA 20147


DATED: May 09, 2018




Frequency Coordination and Interference Analysis Report   05/09/2018    Page 11 of 11



Document Created: 2018-06-12 08:22:39
Document Modified: 2018-06-12 08:22:39

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