Attachment Exhibit A

This document pretains to SES-MOD-20181030-03723 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2018103003723_1562460

Exhibit A Non-Routine Earth Station Antenna, Uplink EIRP Density, and Protection From Interference In this application, GCI Communication Corp (GCI) proposes to employ the Patriot Antenna Systems TXINT-380AZ 3.8m C-band earth station antenna which has been recognized as non-compliant with the antenna performance standards defined in 47 C.F.R. Ch. 1 §25.209. Per the instructions set forth in the FCC International Bureau Public Notice DA 09-425 (“International Bureau Establishes Website For List Of Previously Approved Non-Routine Earth Station Antennas”), GCI cites the following non-routine earth station application to serve as a reference for this GCI application: Antenna Manufacturer: Patriot Antenna Systems Antenna Model Number: TXINT-380 Reference Application File Number: S-LIC-20061115-02001 Reference Call Sign: E060415 Reference Licensee Name: WITF, Inc As presented in the FCC license associated with Call Sign E060415 (noted above), GCI will operate the earth station associated with its’ application at a level 6 dB below the maximum power density into the antenna defined in 47 C.F.R. Ch. 1 §25.212(d)(2). As such, the maximum EIRP density will not exceed -8.7 dBW/4kHz (calculated as: -2.7 dBW/4kHz – 6.0 dB = -8.7 dBW/4kHz). Furthermore, GCI understands that it is not protected from interference which may result from the Patriot Antenna Systems TXINT-380 antennas main lobe and/or side lobe performance characteristics. As such, GCI will only seek protection to the level associated with an antenna meeting the performance standards defined in 47 C.F.R. Ch. 1 §25.209.


Document Created: 2018-10-06 05:43:14
Document Modified: 2018-10-06 05:43:14
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