Notice of 90-Day Period To Submit Affirmation of Operational Status of Identified Earth Station Antennas To Avoid Losing Incumbent Status or File To Remove Identified Antennas From IBFS if No Longer Operational

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In this document, the International Bureau (Bureau) provides notice to certain incumbent earth station operators in the 3700-4200 MHz frequency band of 90-day period to submit affirmation of operational status of identified earth station antennas to avoid losing incumbent status or file to remove identified antennas from IBFS if no longer operational. Specifically, IB provides the following notice to operators of certain incumbent FSS C-band earth station antennas recently reported to the Bureau by RSM US LLP (RSM), the C-band Relocation Coordinator, on behalf of incumbent C-band satellite operators: Failure to submit a filing to the Bureau by no later than 90 days after the release of the Bureau's Public Notice (i.e., by October 21, 2021) affirming the continued operation of the earth station antennas reported to the Bureau as inactive and the intent to participate in the C-band transition will result in a Bureau announcement that those authorizations identified as inactive in the Appendix attached to the Bureau's Public Notice have automatically terminated by operation of rule, and that those authorizations will be terminated in IBFS and removed from the incumbent earth station l