The PFD limits in §27.1423 may be modified by the private agreement of licensees of 3.7 GHz Service and entities operating earth stations in the 4000-4200 MHz band or TT&C operations in the 3700-3980 MHz band. A licensee of the 3.7 GHz Service who is a party to such an agreement must maintain a copy of the agreement in its station files and disclose it, upon request, to prospective license assignees, transferees, or spectrum lessees, and to the Commission.


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