On August 20, 2025, Brazil’s National Telecommunications Agency (ANATEL) issued Official Letter No. 246/2025, formally revoking the temporary authorization that had allowed certification of equipment operating with Frequency Division Duplex (FDD) technology in Band 2 (1880–1920 MHz). This decision aligns with Brazil’s current spectrum policy, which reserves this frequency range exclusively for Time Division Duplex (TDD) systems.
Background: Transition from FDD to TDD Use
Under Resolution No. 454/2006, the L-band (1895–1900 MHz uplink / 1975–1980 MHz downlink) was available for FDD systems. That changed in 2022 when Resolution No. 757 restructured the band plan, reclassifying the entire 1880–1920 MHz range for TDD-only systems. While this removed Band 2 (FDD) from certification eligibility, ANATEL initially allowed a transition period that permitted continued approvals until June 1, 2026.
What’s Changed with Official Letter No. 246/2025
ANATEL’s latest decision fully ends this temporary exception. Following a spectrum analysis, the agency confirmed:
No companies currently operate base stations in Band 2 (FDD).
No authorizations will be granted for FDD operation in this band moving forward.
With no active or planned use cases, maintaining certification pathways for FDD equipment in Band 2 is no longer warranted.
Impact on Certification Activities
The revocation has immediate implications for manufacturers and certification bodies:
New Applications: Designated Certification Bodies (OCDs) must no longer approve or list Band 2 (FDD) 1900 MHz equipment.
Renewals: OCDs are required to remove Band 2 (FDD) if it was previously included in any existing certificates.
Current Eligibility: Only Band 39 (TDD) remains valid for certification in the 1880–1920 MHz frequency range.
ANATEL reaffirmed that Resolution No. 773/2025, which replaced Resolution No. 757/2022, maintains the TDD-only allocation for the 1880–1920 MHz band. Without active authorizations for FDD use, the agency concluded that continued certification in this range serves no regulatory or operational purpose.
For this article’s source information and any product certification guidance, please contact Global Validity.
Quick Country Facts
Brazil
Certification Body: Agencia Nacional de Telecomunicaciones (ANATEL)
Certification Type: Mandatory
License Validity: 24/36 Months
Application Language: Portuguese
Legal License Holder: Local Representative
In-Country Testing Requirement: In-Country Testing
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