Attachment Attachment 2

This document pretains to SES-LIC-20160405-00322 for License on a Satellite Earth Station filing.

IBFS_SESLIC2016040500322_1132131

                 25.203(l) Analysis for 17/24 GHz BSS Feeder Link Antenna

        In this application, DIRECTV Enterprises, LLC (“DIRECTV”) requests, in part,
operating authority to allow an earth station antenna at DIRECTV’s Los Angeles Broadcast
Center (LABC) to communicate with DIRECTV RB-1 and DIRECTV RB-2, the 17/24 GHz
BSS communications payloads on the DIRECTV 14 and DIRECTV 15 satellites, respectively.
Under Section 25.203(l) of the Commission’s rules, feeder link facilities operating in the 25.05-
25.25 GHz band can only be licensed in Economic Areas (“EA”) where no existing FS licensee
is authorized, and feeder link operations must be coordinated with FS licensees in nearby EAs
when the PFD of the feeder link transmitted signal is equal to or greater than -114 dBW/m2/MHz
at the boundary of the FS licensed area.

       DIRECTV notes that the earth station that is the subject of this application is located in
Los Angeles, CA, which is in EA 160. According to the Commission’s ULS database, there are
no FS licensees in that EA authorized to operate in the relevant band. The table on the following
page was produced as a result of a search of the ULS database for authorizations to operate in the
25.05-25.15 GHz band. As can be seen, there are thirty one active licenses in this frequency
band. As can be readily determined, the Market/Areas for all licenses but one are well removed
from Los Angeles County, CA and from DIRECTV’s LABC location. The one exception is call
sign WPNH294 in Stockton, CA, which is in EA 163.

        An analysis of EA 163 shows that Monterey County, CA is the closest county in EA 163
to DIRECTV’s LABC location. A Google Earth search of California counties resulted in the
image on the following page and as can be seen, the shortest distance from DIRECTV’s LABC
site to Monterey County, or the edge of EA 163, is just under 257 km. The analysis below
demonstrates that the applied for earth station will meet the -114 dBW/m2/MHz level at the
boundary of EA 163 with over 17 dB of margin.


                                    13.2m uplink
                                                                         Monterey
                    24 GHz BSS Feeder Link Antenna Parameters              Co
                 Max EIRP/carrier (dBW)                                      80.0
                 Antenna size (m)                                            13.2
                 Antenna on-axis gain (dBi)                                  67.0
                 Max power into antenna (dBW)                                13.0
                 Bandwidth normalizing factor for 36 MHz carrier (dB)        15.6
                 Max power density into antenna (dBW/MHz)                     -2.6
                 Max gain towards the horizon (dBi) (§25.209)               -10.0
                 Max eirp density towards the horizon (dBW/MHz)             -12.6
                 Min distance to EA border (km)                            256.99
                 Spreading loss over min distance to EA border (dB-m2)      119.1
                 Max PFD at EA boder (dBW/m2/MHz)                          -131.7
                 Margin in DEMS protection (dB)                              17.7


                   ULS Search Results for Licensees in 25.05-25.15 GHz
Call Sign            Licensee Name                         Market/Area         Status
WMF846      FiberTower Spectrum Holdings LLC St. Louis, MO                    Active
WMF848      FiberTower Spectrum Holdings LLC Kansas City, MO                  Active
WMF850      FiberTower Spectrum Holdings LLC Baltimore SMSA                   Active
WMF852      FiberTower Spectrum Holdings LLC Pittsburg, PA                    Active
WMF854      FiberTower Spectrum Holdings LLC Seattle, WA                      Active
WMT304      FiberTower Spectrum Holdings LLC New York, NY                     Active
WMT307      FiberTower Spectrum Holdings LLC New York, NY                     Active
WMT312      FiberTower Spectrum Holdings LLC Washington DC SMSA               Active
WMT315      FiberTower Spectrum Holdings LLC New York, NY                     Active
WMT318      FiberTower Spectrum Holdings LLC Chicago, IL                      Active
WMT325      FiberTower Spectrum Holdings LLC Kansas City, KS                  Active
WMT328      FiberTower Spectrum Holdings LLC Boston, MA                       Active
WMT331      FiberTower Spectrum Holdings LLC Dallas, TX                       Active
WMT332      FiberTower Spectrum Holdings LLC Chicago, IL                      Active
WMT333      FiberTower Spectrum Holdings LLC Boston, MA                       Active
WMT334      FiberTower Spectrum Holdings LLC Miami, FL                        Active
WMT335      FiberTower Spectrum Holdings LLC Atlanta, GA                      Active
WMT338      FiberTower Spectrum Holdings LLC Washington DC SMSA               Active
WMT340      FiberTower Spectrum Holdings LLC Dallas, TX                       Active
WPJD304     FiberTower Spectrum Holdings LLC Detroit, MI                      Active
WPNH286     FiberTower Spectrum Holdings LLC Richmond, VA                     Active
WPNH287     FiberTower Spectrum Holdings LLC Allentown, PA                    Active
WPNH294     FiberTower Spectrum Holdings LLC Stockton, CA (San Joaquin Co.)   Active
                                                BEA163
WPNH298     FiberTower Spectrum Holdings LLC Jacksonville, FL                 Active
WPNH299     FiberTower Spectrum Holdings LLC Orlando, FL                      Active
WPNH306     FiberTower Spectrum Holdings LLC Greensboro, NC                   Active
WPNH315     FiberTower Spectrum Holdings LLC Buffalo, NY                      Active
WPNH323     FiberTower Spectrum Holdings LLC Memphis, TN                      Active
WPNH324     FiberTower Spectrum Holdings LLC Austin, TX                       Active
WPNH325     FiberTower Spectrum Holdings LLC Nashville, TN                    Active
WQCJ304     FiberTower Spectrum Holdings LLC Denver-Boulder-Greeley BEA141    Active





Document Created: 2016-04-04 17:12:11
Document Modified: 2016-04-04 17:12:11

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