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Federal Register / Vol. 86, No. 19 / Monday, February 1, 2021 / Proposed Rules that is filed for a space station transmitting in any portion of the 17.3
17.8 GHz band no later than two years after license grant for the space station.
c No later than two months prior to launch, each licensee of a space station transmitting in any portion of the 17.3
17.8 GHz band must update the predicted transmitting antenna off-axis gain information provided in accordance with paragraph a of this section by submitting measured transmitting antenna off-axis gain information over the angular ranges, measurement frequencies and polarizations specified in paragraphs a1 through 5 of this section. The transmitting antenna off-axis gain information should be measured under conditions as close to flight configuration as possible.
d No later than two months prior to launch, or when applying for authority to change the location of a space station transmitting in any portion of the 17.3
17.8 GHz band that is already in orbit, each such space station licensee must provide pfd calculations based on the measured off-axis gain data submitted in accordance with paragraph c of this section, as follows:
1
ii At the location of any subsequently filed U.S. DBS space station where the pfd level in the 17.3
17.8 GHz band calculated on the basis of measured gain data exceeds 117
dBW/m2/100 kHz. In this rule, the term subsequently filed U.S. DBS space station refers to any co-frequency Direct Broadcast Satellite service space station proposed in a license application filed with the Commission after the operator of a space station transmitting in any portion of the 17.317.8 GHz band submitted the predicted data required by paragraphs a through b of this section but before submission of the measured data required by this paragraph. Subsequently filed U.S. DBS
space stations may include foreignlicensed DBS space stations seeking authority to serve the United States market. The term does not include any applications or authorizations that have been denied, dismissed, or are otherwise no longer valid, nor does it include foreign-licensed DBS space stations that have not filed applications with the Commission for market access in the United States.
2 The pfd calculations must take into account the maximum permitted longitudinal station-keeping tolerance, orbital inclination and orbital eccentricity of both the transmitting 17.317.8 GHz and DBS space stations, and must:

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e If the aggregate pfd level calculated from the measured data submitted in accordance with paragraph d of this section is in excess of the threshold pfd level of 117 dBW/m2/100 kHz:
1 At the location of any prior-filed U.S. DBS space station as defined in paragraph b1 of this section, then the operator of the space station transmitting in any portion of the 17.3
17.8 GHz band must either:

2 At the location of any subsequently filed U.S. DBS space station as defined in paragraph d1 of this section, where the aggregate pfd level submitted in accordance with paragraph d of this section is also in excess of the pfd level calculated on the basis of the predicted data submitted in accordance with paragraph a of this section that were on file with the Commission at the time the DBS space station application was filed, then the operator of the space station transmitting in the 17.317.8 GHz band must either:

3 No coordination or adjustment of operating parameters is required in cases where there is no overlap in frequencies assigned to the DBS and the space station transmitting in the 17.3
17.8 GH band.
f The applicant or licensee for the space station transmitting in the 17.3
17.8 GHz band must modify its license, or amend its application, as appropriate, based upon new information:
1
2 If the operator of the space station transmitting in the 17.317.8 GHz band adjusts its operating parameters in accordance with paragraphs e1ii or e2ii or this section.
g Absent an explicit agreement between operators to permit more closely spaced operations, U.S.
authorized 17/24 GHz BSS or FSS space stations transmitting in the 17.317.8
GHz band and U.S. authorized DBS
space stations with co-frequency assignments may not be licensed to operate at locations separated by less than 0.5 degrees in orbital longitude.
h All operational space stations transmitting in the 17.317.8 GHz band must be maintained in geostationary orbits that:

i U.S. authorized DBS networks may claim protection from space path interference arising from the reverseband operations of U.S. authorized space stations transmitting in the 17.3
17.8 GHz band to the extent that the DBS space station operates within the bounds of inclination and eccentricity
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listed below. When the geostationary orbit of the DBS space station exceeds these bounds on inclination and eccentricity, it may not claim protection from any additional space path interference arising as a result of its inclined or eccentric operations and may only claim protection as if it were operating within the bounds listed below:

FR Doc. 202100047 Filed 12921; 8:45 am BILLING CODE 671201P

FEDERAL COMMUNICATIONS
COMMISSION
47 CFR Part 64
CG Docket Nos. 1324, 03123, and 10
51; FCC 20132; FRS 17392

Captioned Telephone Services Quality Metrics Federal Communications Commission.
ACTION: Proposed rule.
AGENCY:

In this document, the Federal Communications Commission FCC or Commission proposes to amend the mandatory minimum standards applicable to internet Protocol Captioned Telephone Service IP CTS
and Captioned Telephone Service CTS
to include metrics for accuracy and caption delay and to define how testing and measurement of IP CTS and CTS
provider performance should be conducted.

SUMMARY:

Comments are due March 3, 2021; reply comments are due April 2, 2021.
ADDRESSES: You may submit comments, identified by CG Docket Nos. 1324, 03
123, and 1051, by either of the following methods:
Electronic Filers: Comments may be filed electronically using the internet by accessing the Commissions Electronic Filing System ECFS: https
www.fcc.gov/ecfs/filings. Filers should follow the instructions provided on the website for submitting comments. For ECFS filers, in completing the transmittal screen, filers should include their full name, U.S. Postal service mailing address, and CG Docket Nos.
1324, 03123, and 1051.
Paper Filers: Parties who choose to file by paper must file an original and one copy of each filing. If more than one docket or rulemaking number appears in the caption of this proceeding, filers must submit two additional copies for each additional docket or rulemaking number. Filings can be sent by hand or DATES:

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