ANATEL’s Act No. 5885, dated 29 April 2026, is in force and revokes the 2022 framework. Boosters now need built-in self-monitoring.
Brazil’s telecommunications regulator, ANATEL, has approved new technical requirements and test procedures for the conformity assessment of internal signal boosters used with Personal Mobile Service (SMP)—the devices that extend mobile coverage indoors.
Act No. 5885 replaces the 2022 rules
Approved by ANATEL’s Superintendence of Granting and Resources to Provision, the act repeals Act No. 2271 of 9 February 2022. Internal signal boosters for SMP are now assessed against the new requirements.
Two device categories
- Selective boosters — retransmit the signal of a single SMP carrier.
- Broadband boosters — handle signals from multiple carriers.
Self-monitoring is now mandatory
The central change is a set of required self-monitoring functions to limit interference with mobile networks. A booster must:
- detect and mitigate oscillation caused by signal feedback;
- automatically control amplification so transmit power stays within limits;
- shut down when it cannot operate within the defined parameters;
- deactivate after five minutes with no active connections, resuming only when they return.
ANATEL states the revised criteria bring Brazil closer to practices adopted by other regulators.
What manufacturers and importers should check
Products in the certification pipeline must now meet the Act No. 5885 requirements, not the repealed 2022 ones, so test plans and technical documentation should be reviewed against the new procedures. Conditions of use are unchanged: prior consent from the authorised SMP carrier, operation stopped on request if it causes interference, and indoor use only.
Where to find the act
The full text is published through ANATEL’s electronic records system: Act No. 5885. The repealed framework remains available for reference: Act No. 2271.
