Attachment Ex. A (narrative)

This document pretains to SES-STA-20130730-00677 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2013073000677_1005628

Inmarsat Hawaii Inc.
Request for Special Temporary Authority
Exhibit A

                                       Description of STA Request

Inmarsat Hawaii Inc. (“Inmarsat Hawaii”) hereby requests special temporary authority
(“STA”) to test its new Lino Lakes, Minnesota gateway earth station facility (the “Lino Lakes
gateway”) which is in the final stages of construction.1 This STA request includes the same
technical parameters as a previous STA request that was granted earlier this year.2 The Lino
Lakes gateway will provide essential TT&C and feeder link services for the Inmarsat I5-F2
satellite using a 13.2 meter antenna. The I5-F2 satellite is scheduled for launch in early 2014.

Inmarsat Hawaii currently has an earth station application pending, seeking authority for the
Lino Lakes gateway antenna to communicate with the I5-F2 satellite.3 Inmarsat needs to
ensure that the Lino Lakes gateway antenna is operating properly well in advance of the I5-
F2 satellite launch and arrival at the 55º W.L. orbital location. This application seeks STA to
test the Lino Lakes gateway antenna with another satellite, Anik F2, located at the 111.1º
W.L. orbital location.4
The antenna tests will consist of uplink transmissions only from the Lino Lakes gateway
antenna. The transmissions will consist of continuous wave carriers from the Lino Lakes
gateway antenna to the Anik F2 satellite at 111.1° W.L. The signals from the Lino Lakes
gateway antenna will be transmitted down from the Anik F2 satellite to Telesat’s Winnipeg
teleport facility in Canada using previously authorized frequencies and will be monitored and
measured by Inmarsat in order to verify the Lino Lakes gateway earth station antenna
performance (e.g., peak gain and side lobe patterns).
The below table provides the carrier parameters to be used for the Lino Lakes gateway
antenna performance verification testing (uplink only).

                                          Uplink
Carrier designation                       1K00NON
Allocated bandwidth                       1 kHz
Transmit antenna diameter                 13.2 m
Transmit antenna gain                     69.2 dBi
Maximum uplink EIRP                       70 dBW

1
 The Lino Lakes gateway consists of one 13.2 meter antenna. The antenna coordinates, listed on the STA
application form, are latitude 45° 7' 56.0" N and longitude 93° 5' 44.0" W.
2
 IBFS File No. SES-STA-20130604-00540 ; Call Sign E120072 (granted June 27, 2013 for 30 days
commencing on June 28, 2013).
3
 See, File Nos. SES-LIC-20120426-00397; SES-AMD-20120823-00781; Call Sign E120072 (“Lino Lakes
Application”).
4
  The Anik F2 satellite has been authorized to provide service in the United States permitting U.S. earth station
operators authority to access the satellite. File No. SAT-PPL-20041004-00194; Call Sign S2646. See, Telesat
Canada, Petition for Declaratory Ruling For Inclusion of Anik F2 on the Permitted Space Station List; Petition
for Declaratory Ruling to Serve the U.S. Market Using Ka-band Capacity on Anik F2, Order, DA 02-3490, 17
FCC Rcd. 25,287 (Int'l Bur. 2002) as modified by Public Notice Report No. SAT-00268; DA No. 05-241 (Jan.
28, 2005).


Maximum satellite (downlink)             38.0 dBW
EIRP




FREQ 0                         Out Bound Carriers
U/L Frequency                  29712 - 29748 MHz
D/L Frequency                  18512-18548 MHz
                               (not requested)
Polarisation                   RHCP Uplink
                               RHCP Downlink (not requested)


The Anik F2 at 111.1º W.L. orbital location is within the arc covered by the Comsearch
Frequency Analysis Coordination Report submitted with Lino Lakes Application.5
Moreover, the proposed maximum EIRP density for testing operations is within the
maximum EIRP density included in that Comsearch report.6 Inmarsat Hawaii Inc.
incorporates by reference the technical information contained in those prior filings.
Grant of the requested STA will serve the public interest, convenience and necessity because
it will help ensure that this new earth station facility performs according to its design
specifications and can reliably be used to control and communicate with the I5-F2 satellite.
Inmarsat respectfully requests that the Commission grant STA beginning August 19, 2013 for
period of 30 days.




5
    See, Lino Lakes Application, File No. SES-LIC-20120426-00397, Exhibit E.
6
    See Id.



Document Created: 2013-07-30 14:17:09
Document Modified: 2013-07-30 14:17:09

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