ANATEL Short Range Devices (SRD)
Key Takeaways
ANATEL homologation is required for SRD products on the Brazilian market.
Testing and certification are coordinated with a designated certification body (OCD) under Brazilian rules.
Operating bands and signal characteristics determine the RF requirements.
Marking methods depend on product design and applicable exceptions.
Radio combinations and firmware changes require product-specific assessment.
Overview of Short-Range Technologies
Bluetooth, Wi-Fi, Zigbee and Ultra-Wideband (UWB) are used in consumer electronics, industrial systems and vehicles. In Brazil, these technologies fall within ANATEL’s restricted-radiation equipment framework. Products for the Brazilian market require conformity assessment and ANATEL homologation.
The applicable requirements depend on the product type, operating bands and intended use. The following sections cover testing, certification, labeling and integration considerations.
Use the quick summary above to find the relevant section.
SRD Frequency Bands and Regulatory Basis
Frequency Ranges
2.4 GHz: Bluetooth (BLE: Bluetooth Low Energy, Classic), Zigbee, Wi-Fi
5 GHz / 6 GHz: Wi-Fi (subject to band-specific DFS/TPC requirements and indoor or outdoor operating conditions)
3.1–3.3 / 3.7–10.6 GHz: Ultra-Wideband (UWB) for medical imaging, indoor and portable applications; additional conditions apply in vehicles
Regulatory References
Ato nº 14448/2017 – Defines technical requirements for restricted radiation devices
Ato nº 14158/2025 – Updates 5 GHz requirements and other restricted-radiation provisions.
Resolução nº 715/2019 – Specifies conformity assessment procedures
Ato nº 423/2022 – Amends UWB limits and adds in-vehicle operating conditions
Testing and Certification Requirements
For commercial market access, a designated certification body (OCD) confirms the certification model for the product type and defines the test scope. Laboratory selection follows ANATEL’s recognition and priority rules, including conditions for using laboratories abroad.
Depending on the product and operating mode, testing may include:
RF output power, occupied bandwidth, and spurious emissions
Hopping behavior for frequency-hopping modes
Electromagnetic compatibility (EMC)
RF exposure, including Specific Absorption Rate (SAR) where applicable
Electrical and battery safety, where applicable
Existing FCC or CE test reports require OCD review for compatibility with Brazilian requirements and the applicable laboratory rules.
Assessment by Use Case
The certification model and maintenance requirements follow the product type. Typical assessment considerations include:
| Device Type | Details |
|---|---|
| Bluetooth speaker |
Assessment Focus: Finished-product configuration Notes: RF, EMC and applicable safety checks |
| Embedded BLE module |
Assessment Focus: Module and host integration Notes: Antenna, installation and RF exposure |
| Wi-Fi router (dual-band) |
Assessment Focus: Operating bands and modes Notes: Band-specific RF tests; DFS where applicable |
| Wi-Fi module in embedded device |
Assessment Focus: Host configuration Notes: Antenna, power supply and intended use |
| Zigbee sensor (industrial) |
Assessment Focus: Installed configuration Notes: RF, EMC and applicable safety checks |
| Device Type | Assessment Focus | Notes |
|---|---|---|
| Bluetooth speaker | Finished-product configuration | RF, EMC and applicable safety checks |
| Embedded BLE module | Module and host integration | Antenna, installation and RF exposure |
| Wi-Fi router (dual-band) | Operating bands and modes | Band-specific RF tests; DFS where applicable |
| Wi-Fi module in embedded device | Host configuration | Antenna, power supply and intended use |
| Zigbee sensor (industrial) | Installed configuration | RF, EMC and applicable safety checks |
Operating Bands and Signal Characteristics
Frequency ranges and signal types by technology:
| Technology | Details |
|---|---|
| Bluetooth |
Frequency Range: 2400–2483.5 MHz Signal Characteristics: BLE: GFSK Classic: π/4-DQPSK, 8DPSK |
| Wi-Fi |
Frequency Range: 2.4 GHz, 5 GHz, 6 GHz Signal Characteristics: OFDM, DSSS (depending on standard) |
| Zigbee |
Frequency Range: 2400–2483.5 MHz Signal Characteristics: O-QPSK |
| UWB |
Frequency Range: 3100–3300 MHz, 3700–10,600 MHz Signal Characteristics: Wideband emissions (see UWB section) |
| Technology | Frequency Range | Signal Characteristics |
|---|---|---|
| Bluetooth | 2400–2483.5 MHz | BLE: GFSK Classic: π/4-DQPSK, 8DPSK |
| Wi-Fi | 2.4 GHz, 5 GHz, 6 GHz | OFDM, DSSS (depending on standard) |
| Zigbee | 2400–2483.5 MHz | O-QPSK |
| UWB | 3100–3300 MHz, 3700–10,600 MHz | Wideband emissions (see UWB section) |
Selected RF Checks and Marking by Technology
Selected RF checks under Ato nº 14448/2017 and product-dependent marking considerations:
| Technology | Details |
|---|---|
| Bluetooth |
RF Basis: Item 10 Key Testing Requirements: RF output, hopping1, EMC; SAR/safety where applicable Labeling Considerations: Product marking; identification in the user manual or e-label where permitted |
| Wi-Fi |
RF Basis: Items 10–11 Key Testing Requirements: RF tests, band-specific DFS2, EMC and applicable safety Labeling Considerations: Marking based on product design and permitted exceptions3 |
| Zigbee |
RF Basis: Item 10 Key Testing Requirements: RF output, spurious emissions, EMC Labeling Considerations: Product marking; identification in the user manual only where permitted4 |
| UWB |
RF Basis: Item 19 Key Testing Requirements: Emissions, bandwidth5, EMC Labeling Considerations: Applicable ANATEL marking; e-label where permitted |
| Technology | RF Basis | Key Testing Requirements | Labeling Considerations |
|---|---|---|---|
| Bluetooth | Item 10 | RF output, hopping1, EMC; SAR/safety where applicable | Product marking; identification in the user manual or e-label where permitted |
| Wi-Fi | Items 10–11 | RF tests, band-specific DFS2, EMC and applicable safety | Marking based on product design and permitted exceptions3 |
| Zigbee | Item 10 | RF output, spurious emissions, EMC | Product marking; identification in the user manual only where permitted4 |
| UWB | Item 19 | Emissions, bandwidth5, EMC | Applicable ANATEL marking; e-label where permitted |
Notes:
1 Hopping requirements apply to frequency-hopping modes; other modes follow the relevant digital-modulation rules.
2 DFS applies in 5250–5350 MHz and 5470–5725 MHz; TPC or reduced EIRP applies in the relevant bands. In 6 GHz, APs, subordinate APs and clients operate indoors; VLP devices may also operate outdoors.
3 Physical marking belongs on a non-removable part accessible without tools, unless a permitted exception or an e-label applies.
4 For embedded modules, agree the assessment scope and marking method with the OCD for the intended integration.
5 UWB bandwidth and emission requirements depend on the definition and application in section 19 of Ato nº 14448/2017. In-vehicle systems have additional conditions under item 19.2.
Bandwidth Requirements for Digitally Modulated SRDs
For digitally modulated SRDs assessed under item 10.3.4 of Ato nº 14448/2017, two mandatory dates apply:
April 6, 2026: The alternative measurement method requires 30 dB attenuation outside the operating band, comparing power in 100 kHz bandwidths.
October 6, 2026: Repeal of the item 10.3.4.4 exemption makes the existing minimum 6 dB bandwidth of 500 kHz applicable to this equipment.
These changes concern the 902–907.5 MHz, 915–928 MHz, 2400–2483.5 MHz and 5725–5850 MHz bands. For changes covered by Article 19 of Ato nº 14158/2025, as amended by Ato nº 4746/2026, products homologated by the applicable mandatory date may retain the corresponding previous requirements during certification maintenance.
→ See: ANATEL: 6 dB Bandwidth Exemption to End on October 6, 2026
Bluetooth Compliance under ANATEL SRD
Bluetooth Classic (BR/EDR) and Low Energy (LE) are used in speakers, wearables and embedded modules. Brazilian RF requirements apply to the supported operating modes in the 2400–2483.5 MHz band.
Assess the supported Bluetooth modes for:
RF output, bandwidth and spurious emissions
Hopping behavior for frequency-hopping modes
EMC, plus SAR and safety checks where applicable
Product-specific certification and maintenance requirements apply. Agree the antenna, intended integration and marking method with the OCD.
The tables above summarize selected checks and marking considerations.
For an international overview of Bluetooth certification and regulatory frameworks, visit the Bluetooth Technology page.
Ultra-Wideband (UWB) under ANATEL
ANATEL’s UWB requirements cover medical imaging systems, indoor equipment and portable devices. Ato nº 423/2022 amended the emission limits and added conditions for systems installed inside land vehicles.
Systems with at least 20% fractional bandwidth, or at least 500 MHz bandwidth measured 10 dB below the peak, are classified as UWB under section 19.1.
UWB products intended for Brazil must:
Use the applicable operating bands and emission limits in Table XIV of Ato nº 14448/2017
Comply with average and peak EIRP limits, including out-of-band and spurious-emission requirements
For in-vehicle systems in 3100–3300 MHz and 3700–10,600 MHz, meet the portable-device limits and transmit only when communicating with portable devices in the same system
Confirm the intended application and installation with the OCD. → See also: Ultra-Wideband – Technology and Compliance
Wi-Fi under ANATEL
Wi-Fi equipment in Brazil must meet the requirements for its operating bands, device type and intended use. These include RF limits, applicable DFS/TPC conditions and conformity assessment.
Wi-Fi products intended for Brazil must:
Use permitted channels in the supported 2.4 GHz, 5 GHz and 6 GHz bands
Meet band-specific DFS and TPC conditions, including the reduced-power alternative where permitted
Configure RF parameters for operation in Brazil
The general testing, laboratory, certification and maintenance requirements above also apply.
Ato nº 14448/2017, as amended by Ato nº 14158/2025, sets the applicable 5 GHz limits and DFS/TPC conditions.
Wi-Fi Operating Bands and Power Limits in Brazil
Wi-Fi devices operate across multiple frequency bands, each with specific regulatory constraints and power limitations. The values below distinguish between conducted output power and EIRP where required. Applicable limits may also depend on device type, antenna gain, spectral density, channel bandwidth, and operating conditions.
| Band / Frequency Range | Details |
|---|---|
| 2.4 GHz |
Frequency Range: 2400–2483.5 MHz Maximum Power: Up to 1 W conducted output power Regulatory Notes: Spread-spectrum or OFDM operation; antenna-gain and spectral-density limits apply |
| 5 GHz (U-NII-1) |
Frequency Range: 5150–5250 MHz Maximum Power: Access points: 1 W conducted; client devices: 250 mW conducted Regulatory Notes: DFS optional; TPC or reduced EIRP; antenna-gain and spectral-density limits apply |
| 5 GHz (U-NII-2A) |
Frequency Range: 5250–5350 MHz Maximum Power: Up to 250 mW conducted output power Regulatory Notes: DFS required; TPC or reduced EIRP; bandwidth and spectral-density limits apply |
| 5 GHz (U-NII-2C) |
Frequency Range: 5470–5725 MHz Maximum Power: Up to 250 mW conducted output power Regulatory Notes: DFS required; TPC or reduced EIRP; bandwidth and spectral-density limits apply |
| 5 GHz (U-NII-3) |
Frequency Range: 5725–5850 MHz Maximum Power: Up to 1 W conducted output power Regulatory Notes: Outdoor operation permitted; DFS not required; antenna-gain and spectral-density limits apply |
| 6 GHz |
Frequency Range: 5925–7125 MHz Maximum EIRP: Indoor access points: 1 W; client devices: 250 mW; VLP devices: 50 mW Regulatory Notes: Indoor APs, subordinate APs and clients: indoor use; clients under AP control. VLP: indoor/outdoor. Standard Power/AFC not authorized. |
| Band | Frequency Range | Maximum Power | Regulatory Notes |
|---|---|---|---|
| 2.4 GHz | 2400–2483.5 MHz | Up to 1 W conducted output power | Spread-spectrum or OFDM operation; antenna-gain and spectral-density limits apply |
| 5 GHz (U-NII-1) | 5150–5250 MHz | Access points: 1 W conducted; client devices: 250 mW conducted | DFS optional; TPC or reduced EIRP; antenna-gain and spectral-density limits apply |
| 5 GHz (U-NII-2A) | 5250–5350 MHz | Up to 250 mW conducted output power | DFS required; TPC or reduced EIRP; bandwidth and spectral-density limits apply |
| 5 GHz (U-NII-2C) | 5470–5725 MHz | Up to 250 mW conducted output power | DFS required; TPC or reduced EIRP; bandwidth and spectral-density limits apply |
| 5 GHz (U-NII-3) | 5725–5850 MHz | Up to 1 W conducted output power | Outdoor operation permitted; DFS not required; antenna-gain and spectral-density limits apply |
| 6 GHz | 5925–7125 MHz | Indoor AP: 1 W EIRP; client: 250 mW EIRP; VLP: 50 mW EIRP | Indoor APs, subordinate APs and clients: indoor use; clients under AP control. VLP: indoor/outdoor. Standard Power/AFC not authorized. |
Regulatory Compliance:
Configure devices for Brazil’s permitted channels, power levels and operating modes. Apply the relevant DFS/TPC conditions and any permitted reduced-power alternative.
Definitions:
- EIRP – Effective Isotropic Radiated Power
- DFS – Dynamic Frequency Selection
- TPC – Transmit Power Control
- AFC – Automated Frequency Coordination
- VLP – Very Low Power
Notes:
- U-NII Bands: U-NII-1, U-NII-2A, U-NII-2C, and U-NII-3 are internationally used designations for 5 GHz sub-bands. The applicable Brazilian requirements are determined by ANATEL’s specified frequency ranges and equipment conditions.
- Power Limits: The values shown reflect the requirements introduced or consolidated by Anatel Act 14158 (2025) and the applicable provisions of Act 14448. Limits depend on equipment type, antenna gain, conducted output power, EIRP, spectral density, channel bandwidth, and operating sub-band.
- TPC: For equipment operating in the 5150–5350 MHz and 5470–5725 MHz ranges, TPC must provide at least 6 dB of mitigation below an average EIRP of 30 dBm. Equipment without TPC is limited to an average EIRP of 27 dBm (500 mW).
- 6 GHz: Indoor APs, subordinate APs and clients are restricted to indoor use. Average EIRP limits are 30 dBm for APs, 24 dBm for clients and 17 dBm for VLP devices.
→ For context on international Wi-Fi band use, testing methods, and regulatory coordination, refer to our WLAN / Wi-Fi – Technology and Compliance overview.
Labeling Guidance for SRD Devices
The 12-digit homologation code uses the format HHHHH-AA-FFFFF (e.g., 12345-24-09876). Select the identification method under Ato nº 4088/2020 for the product’s design.
Identification Options
ANATEL seal combining the logo and code
“ANATEL” followed by the homologation code
Electronic identification where applicable
Physical Marking
Legible and durable throughout the product’s useful life
On a non-removable part of the product
Accessible without tools
Alternative Methods
Identification in the user manual only under the permitted exceptions
E-label for devices with an integrated display or operating with display-equipped equipment, meeting access and integrity rules
Packaging identification where required by the marking procedure
For detailed design specifications, including electronic labeling (e-label), refer to the full page: ANATEL Labeling Requirements
Application Contexts for Short-Range Devices
The product’s intended use and integration determine the assessment scope and marking method. Typical considerations include:
1. Consumer Devices
Examples: Bluetooth speakers, Wi-Fi access points, battery-powered IoT devices
Place physical identification on a non-removable part accessible without tools
Assess electrical and battery safety for the product
Assess RF exposure and SAR for the intended use
Prepare required instructions and warnings for the Brazilian market
2. Automotive Integration
Examples: BLE gateway module, 5 GHz Wi-Fi in infotainment systems
Confirm the marking method and any exception with the OCD
Define installation, antenna and operating configuration
Assess RF exposure for the installed system
Apply DFS/TPC conditions for the operating sub-band
3. Embedded OEM Modules
Examples: Zigbee sensor in HVAC system, BLE chip in medical device, Wi-Fi module in industrial controller
Evaluate the module and host configuration with the OCD
Document the antenna, power supply and intended use
Confirm the certification scope for the integrated product
Apply the permitted marking method and any required incorporation statement
Special Considerations
Firmware Configuration
Configure RF settings for the bands, power levels and operating modes permitted in Brazil. Document the supported modes and configuration controls so the OCD can assess compliance.
Combined Devices (e.g., Wi-Fi + Bluetooth)
The assessment must cover the supported radio technologies and operating combinations. Agree the test scope and certification approach with the OCD for the integrated product.
Software, Firmware and Product Changes
For certified products, report changes to the design, manufacturing process, software or firmware to the responsible OCD, following product-specific rules. The OCD evaluates the impact on all applicable requirements and determines whether further tests, documentation or certificate updates are needed.
Further Information and Services
For certification pathways, documentation and related guidance, see:
Need support? Our experts can help with SRD testing, certification and documentation for Brazil.
Selected Official Sources
Official texts in Portuguese, checked on October 21, 2026:
Ato nº 14448/2017 – restricted-radiation requirements
Ato nº 14158/2025 – amendments and mandatory dates
Ato nº 4746/2026 – maintenance transition
Ato nº 4088/2020 – product identification
Ato nº 4077/2020 – product changes
Resolução nº 715/2019 – conformity assessment
Author: IBL-Editors Team
Technical Review: Keshia Bauer - Certification Specialist | IB-Lenhardt AG Give feedback on this article