Attachment FreqCoordReport SES-LIC-20120620-00602

Attachment FreqCoordReport

This document pretains to SES-LIC-20120620-00602 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012062000602_953377

FREQUENCY COORDINATION AND INTERFERENCE
ANALYSIS REPORT

Prepared for
DIRECTV Enterprises, LLC
WINCHESTER, VA
Satellite Earth Station

Prepared By:
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, VA 20147
May 24, 2012

TABLE OF CONTENTS
1. CONCLUSIONS ............................................................................................................................................ 3
2. SUMMARY OF RESULTS ............................................................................................................................ 4
3. SUPPLEMENTAL SHOWING....................................................................................................................... 5
4. EARTH STATION COORDINATION DATA.................................................................................................. 6
5. CERTIFICATION......................................................................................................................................... 10

Frequency Coordination and Interference Analysis Report 05/24/2012 Page 2 of 10

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 05/24/2012 Page 3 of 10

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.

Frequency Coordination and Interference Analysis Report 05/24/2012 Page 4 of 10

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 04/17/2012.

Company
ACC License, LLC
ADAMS COUNTY EMERGENCY MANAGEMENT AGENCY
ALLEGANY COUNTY GOVERNMENT
APC Realty and Equipment CO LLC
ARLINGTON COUNTY EMERGENCY COMM CTR
AT&T CORP
Airband Communications Inc
B.F. SAUL COMPANY
Clearwire Spectrum Holdings III, LLC
ECW Wireless, LLC
Eduro Networks LLC
Franklin County Dept. of Emergency Servi
George Washington University
Last Mile Inc.
Loudoun Wireless LLC
Loudoun, County of
MARYLAND, STATE OF - MDOT - MTA
NBC TELEMUNDO LICENSE LLC
New Cingular Wireless PCS LLC - DC
PENNSYLVANIA TURNPIKE COMMISSION
Prince William, County of
RapidDSL & Wireless, Inc.
Red Zebra Broadcasting Licensee, LLC
Roadstar Internet, Inc.
SHIPPENSBURG AREA SCHOOL DISTRICT
Shenandoah Personal Communications Co
Virginia Cellular LLC
Virginia Electric & Power Company
WASHINGTON CABLE SYSTEMS INC
WKYSFM, INC
Washington Metro Area Transit Police Dep
World Class Wireless LLC

Frequency Coordination and Interference Analysis Report 05/24/2012 Page 5 of 10

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 05/24/2012 Page 6 of 10

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

Date: 04/17/2012
Job Number: <PCNJobCode>
Administrative Information
Status ENGINEER PROPOSAL
Call Sign <PCNCallSign>
Licensee Code ZDIRTV
Licensee Name DIRECTV Enterprises, LLC
Site Information WINCHESTER, VA
Venue Name
Latitude (NAD 83) 39° 7' 55.8" N
Longitude (NAD 83) 78° 12' 6.1" W
Climate Zone A
Rain Zone 2
Ground Elevation (AMSL) 242.93 m / 797.0 ft
Link Information
Satellite Type Geostationary
Mode TR - Transmit-Receive
Modulation Digital
Satellite Arc 90° W to 130° West Longitude
Azimuth Range 198.3° to 243.6°
Corresponding Elevation Angles 43.1° / 20.5°
Antenna Centerline (AGL) 7.92 m / 26.0 ft
Antenna Information Receive - FCC32 Transmit - FCC32
Manufacturer Vertex Vertex
Model 13.2 Meter 13.2 Meter
Gain / Diameter 63.5 dBi / 13.2 m 64.9 dBi / 13.2 m
3-dB / 15-dB Beamwidth 0.10° / 0.30° 0.10° / 0.20°

Max Available RF Power (dBW/4 kHz) -1.5
(dBW/MHz) 22.5

Maximum EIRP (dBW/4 kHz) 63.4
(dBW/MHz) 87.4

Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20%
Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025%

Frequency Information Receive 12.2 GHz Transmit 17.3 GHz
Emission / Frequency Range (MHz) 1M00F2D - 24M0G7W / 12200.0 - 12700.0 1M00F2D - 24M0G7W / 17300.0 - 17800.0

Max Great Circle Coordination Distance 256.2 km / 159.2 mi 173.1 km / 107.6 mi
Precipitation Scatter Contour Radius 491.9 km / 305.6 mi 134.7 km / 83.7 mi

Frequency Coordination and Interference Analysis Report 05/24/2012 Page 7 of 10

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

Coordination Values WINCHESTER, VA
Licensee Name DIRECTV Enterprises, LLC
Latitude (NAD 83) 39° 7' 55.8" N
Longitude (NAD 83) 78° 12' 6.1" W
Ground Elevation (AMSL) 242.93 m / 797.0 ft
Antenna Centerline (AGL) 7.92 m / 26.0 ft
Antenna Model Vertex 13.2 meter
Antenna Mode Receive 12.2 GHz Transmit 17.3 GHz
Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20%
Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025%
Max Available RF Power -1.5 (dBW/4 kHz)

Receive 12.2 GHz Transmit 17.3 GHz
Horizon Antenna Horizon Coordination Horizon Coordination
Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km)
0 0.54 114.71 -10.00 200.98 -10.00 123.25
5 0.43 119.31 -10.00 206.55 -10.00 130.65
10 0.27 123.84 -10.00 220.42 -10.00 142.59
15 0.41 128.40 -10.00 208.23 -10.00 130.95
20 0.24 132.80 -10.00 223.47 -10.00 145.61
25 0.00 136.52 -10.00 227.19 -10.00 149.34
30 0.00 135.68 -10.00 227.19 -10.00 149.34
35 0.00 134.42 -10.00 227.19 -10.00 149.34
40 0.00 132.76 -10.00 227.19 -10.00 149.34
45 0.00 130.75 -10.00 227.19 -10.00 149.34
50 0.00 128.44 -10.00 227.19 -10.00 149.34
55 0.00 125.87 -10.00 227.19 -10.00 149.34
60 0.00 123.07 -10.00 227.19 -10.00 149.34
65 0.00 120.08 -10.00 227.19 -10.00 149.34
70 0.00 116.93 -10.00 227.19 -10.00 149.34
75 0.30 113.78 -10.00 217.23 -10.00 139.48
80 0.30 110.38 -10.00 217.24 -10.00 139.48
85 0.30 106.89 -10.00 217.24 -10.00 139.48
90 0.67 103.42 -10.00 194.46 -10.00 117.37
95 0.67 99.79 -10.00 194.46 -10.00 117.37
100 0.67 96.13 -10.00 194.46 -10.00 117.37
105 0.32 92.43 -10.00 216.08 -10.00 138.36
110 0.00 88.77 -10.00 227.19 -10.00 149.34
115 0.00 85.12 -10.00 227.19 -10.00 149.34
120 0.00 81.49 -10.00 227.19 -10.00 149.34
125 0.00 77.89 -10.00 227.19 -10.00 149.34
130 0.00 74.33 -10.00 227.19 -10.00 149.34
135 0.00 70.84 -10.00 227.19 -10.00 149.34
140 0.00 67.43 -10.00 227.19 -10.00 149.34
145 0.00 64.12 -10.00 227.19 -10.00 149.34
150 0.36 60.74 -10.00 212.43 -10.00 134.87
155 0.00 57.88 -10.00 227.19 -10.00 149.34
160 0.00 55.02 -10.00 227.19 -10.00 149.34
165 0.00 52.37 -10.00 227.19 -10.00 149.34
170 0.00 49.97 -10.00 227.19 -10.00 149.34
175 0.00 47.86 -10.00 227.19 -10.00 149.34
180 0.00 46.08 -9.59 228.99 -9.59 150.75
185 0.00 44.68 -9.25 230.46 -9.25 151.90

Frequency Coordination and Interference Analysis Report 05/24/2012 Page 8 of 10

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

Coordination Values WINCHESTER, VA
Licensee Name DIRECTV Enterprises, LLC
Latitude (NAD 83) 39° 7' 55.8" N
Longitude (NAD 83) 78° 12' 6.1" W
Ground Elevation (AMSL) 242.93 m / 797.0 ft
Antenna Centerline (AGL) 7.92 m / 26.0 ft
Antenna Model Vertex 13.2 meter
Antenna Mode Receive 12.2 GHz Transmit 17.3 GHz
Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20%
Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025%
Max Available RF Power -1.5 (dBW/4 kHz)

Receive 12.2 GHz Transmit 17.3 GHz
Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km)
190 0.00 43.67 -9.00 231.58 -9.00 152.78
195 0.00 42.41 -8.69 233.00 -8.69 153.90
200 0.00 40.72 -8.25 235.00 -8.25 155.48
205 0.00 38.64 -7.68 237.63 -7.68 157.55
210 0.00 36.22 -6.97 240.92 -6.97 160.16
215 0.00 33.51 -6.13 245.46 -6.13 164.86
220 0.00 30.57 -5.13 250.32 -5.13 168.65
225 0.00 27.42 -3.95 256.19 -3.95 173.14
230 0.72 23.86 -2.44 221.47 -2.44 135.76
235 1.31 20.98 -1.05 205.57 -1.05 121.30
240 1.79 19.06 -0.00 199.89 -0.00 112.98
245 1.79 18.78 0.16 200.57 0.16 113.51
250 1.29 20.24 -0.66 207.79 -0.66 123.06
255 0.43 22.99 -2.04 242.13 -2.04 155.28
260 0.48 25.70 -3.25 231.65 -3.25 146.38
265 0.44 29.03 -4.57 228.83 -4.57 145.19
270 0.87 32.50 -5.80 201.98 -5.80 120.40
275 0.99 36.46 -7.04 190.91 -7.04 111.65
280 0.64 40.82 -8.27 202.75 -8.27 123.41
285 0.86 45.07 -9.35 187.25 -9.35 110.63
290 1.02 49.47 -10.00 176.69 -10.00 102.69
295 1.12 53.97 -10.00 173.10 -10.00 100.00
300 1.52 58.46 -10.00 157.34 -10.00 100.00
305 1.39 63.13 -10.00 161.84 -10.00 100.00
310 1.45 67.78 -10.00 159.76 -10.00 100.00
315 1.25 72.49 -10.00 168.92 -10.00 100.00
320 1.21 77.19 -10.00 170.28 -10.00 100.00
325 1.06 81.91 -10.00 175.08 -10.00 101.44
330 1.08 86.62 -10.00 174.42 -10.00 100.93
335 0.99 91.33 -10.00 177.67 -10.00 103.45
340 0.93 96.04 -10.00 180.89 -10.00 106.00
345 0.74 100.73 -10.00 190.72 -10.00 114.13
350 0.62 105.41 -10.00 196.82 -10.00 119.46
355 0.61 110.08 -10.00 197.31 -10.00 119.90

Frequency Coordination and Interference Analysis Report 05/24/2012 Page 9 of 10

Document Created: 2019-04-14 20:13:11
Document Modified: 2019-04-14 20:13:11

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