DRB1 Measured Data S

LETTER submitted by DIRECTV Enterprises, LLC

DRB1 Measured Data Supp Letter

2014-11-06

This document pretains to SAT-MOD-20141103-00119 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2014110300119_1068042

November 6, 2014


BY ELECTRONIC FILING

Marlene H. Dortch, Secretary
Federal Communications Commission
445 Twelfth Street, S.W.
Washington, DC 20554

       Re:     Submission of Measured Transmitting Antenna Off-Axis Gain Information for
               Call Sign S2711, SAT-MOD-20141103-00119

Dear Ms. Dortch:

        On November 3, 2014, DIRECTV Enterprises, LLC (“DIRECTV”) submitted measured
transmitting antenna off-axis gain information and associated power flux-density (“PFD”)
calculations for DIRECTV RB-1, a geostationary satellite in the 17/24 GHz Broadcasting
Satellite Service (“BSS”) authorized to operate at the nominal 99° W.L. orbital location. 1 That
submission included a request, to the extent necessary, for waiver of Section 25.264(a) of the
Commission’s rules (as incorporated by Section 25.264(c)). In this regard, DIRECTV noted
that, due to mechanical/physical limitations of the test fixture, measurements could only be made
over a range of ±50 degrees relative to the equatorial plane in planes rotated from the X-Z plane
about the Z axis, rather than the ±60 degrees called for in Section 25.264(a). DIRECTV should
have noted that these same mechanical/physical limitations also restricted measurements in the
X-Z plane itself, i.e., the plane of the geostationary orbit, to a range of approximately ±27
degrees, rather than ±30 degrees as specified in the rule, when the test fixture was at the ±50
degree limit.

       Please let me know if you have any questions.

                                            Respectfully submitted,

                                              /s/

                                            William M. Wiltshire
                                            Counsel for DIRECTV Enterprises, LLC




1
    See Letter from William M. Wiltshire to Marlene H. Dortch, IBFS File No. SAT-MOD-20141103-
    00119 (Nov. 3, 2014).



Document Created: 2019-04-10 14:40:39
Document Modified: 2019-04-10 14:40:39

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