Brazil has updated technical requirements for telecommunications and audio-video equipment to support new technologies and enhance radiation safety, including millimeter wave sensors and 5G radar devices.
Brazil Updates Rules for New Telecom Tech
New certification and marking rules for 5G radars, signal boosters and other gear.
What changed
New certification rules for millimeter wave sensors and 5G radar devices.
Anatel homologation marking procedure updated for telecom products.
Public consultation launched on new test procedures for signal boosters, revoking Act No. 2271.
Who it affects
Importers and manufacturers of telecom and audio-video gear must follow new certification and marking rules.
Suppliers of signal boosters for the SMP service must adapt to new test procedures.
Aeronautical station manufacturers face proposed changes to radio frequency spectrum use.
Compliance Overview: Updated Technical Requirements for Telecommunications and Audio-Video Equipment in Brazil
Brazil has recently updated its technical requirements for telecommunications and audio-video equipment to accommodate new technologies, including millimeter wave sensors and 5G radar devices, while enhancing radiation safety. These updates are primarily governed by Ato nº 14.448/2017 (as amended) and other regulatory acts issued by Agência Nacional de Telecomunicações (Anatel). Below is a structured analysis of the key requirements, organized by equipment category and regulatory source.
Regulation Analysis
1. Vehicle Radar Systems (46.7–46.9 GHz and 76–81 GHz)
Brazil has introduced specific conditions for vehicle radar systems operating in millimeter wave bands, including compliance with temporary measures under Ato nº 4776/20201.
| Regulation | Key Requirement | Threshold/Deadline | Authority |
|---|---|---|---|
| Ato nº 14.448/2017 (Item 9.2) | Sensors using 46.7–46.9 GHz for vehicle radar must comply with conditions under Ato nº 4776/2020 while they remain in effect1. | Temporary applicability (no fixed deadline) | Anatel |
| Ato nº 14.448/2017 (Item 9.8) | 76–81 GHz radars (fixed or mobile) are permitted in airport operational areas if they meet Item 9.5 requirements1. | No deadline; must comply with Item 9.5 | Anatel |
| Ato nº 14.448/2017 (Item 3.1.49) | Defines vehicle radar as systems installed in terrestrial/aquatic vehicles (e.g., cars, trucks, boats) for transportation purposes1. | N/A | Anatel |
2. Millimeter Wave Sensors (57–71 GHz and 61–61.5 GHz)
Brazil regulates electromagnetic field variation sensors in the 57–71 GHz range, with distinct rules for vehicular applications and aircraft operations1.
Key Requirements:
- Vehicular Applications (61–61.5 GHz):
- Aircraft Operations (57–71 GHz):
- Ground Operations: Permitted without restrictions1.
- In-Flight Operations: Only allowed in closed onboard networks (e.g., passenger devices) with the following exclusions:
- Prohibited: Wireless avionics (WAIC) with external sensors/cameras1.
- Unmanned Aerial Vehicles (UAVs):
- 60–64 GHz only, ≤ 122 meters altitude, peak EIRP ≤ 20 dBm, and transmitter off for ≥ 16.5 ms every 33 ms1.
3. Ultra-High Frequency (UHF) Bands (116–246 GHz)
Brazil has established EIRP limits and emission controls for devices operating in 116–123 GHz, 174.8–182 GHz, 185–190 GHz, and 244–246 GHz1.
| Regulation | Key Requirement | Threshold |
|---|---|---|
| Ato nº 14.448/2017 (Item 25.1) | Average EIRP: ≤ 40 dBm1. | 40 dBm |
| Ato nº 14.448/2017 (Item 25.3–25.5) | – Bandwidth: Emissions must not exceed 6 dB below peak spectral density1. – Spurious Emissions: – < 40 GHz: Limits per Tabela II (Reference 2.3)1. – 40–750 GHz: ≤ 90 pW/cm² at 3 meters1. | 90 pW/cm² at 3 meters |
| Ato nº 14.448/2017 (Item 25.6) | Prohibited: Operation on aircraft or satellites1. | N/A |
4. Wireless Audio Systems (54–608 MHz)
Brazil has adopted ETSI EN 300 422-1 V2.2.1 (2021-11) for digital wireless audio systems (e.g., microphones, in-ear monitors)1.
| Frequency Band | Bandwidth (BW) | EIRP Limit | Key Compliance Requirements |
|---|---|---|---|
| 54–72 MHz | ≤ 1 MHz | 50 mW | – Frequency Stability: Per ETSI EN 300 422-1 (Item 4.2.2)1. – Unwanted Emissions: Per ETSI EN 300 422-1 (Items 4.2.4.1.2 and 4.2.4.2.2)1. – Channel Allocation: Must align with TV broadcasting channels1. |
| 76–88 MHz | 1 MHz < BW ≤ 6 MHz | 100 mW | – Audio Channels: ≥ 3 channels/MHz1. |
| 174–216 MHz | |||
| 470–608 MHz |
5. 5 GHz Wi-Fi (5.150–5.250 MHz)
Brazil has updated power limits for 5 GHz Wi-Fi access points1.
| Parameter | Limit |
|---|---|
| Conducted Output Power | ≤ 30 dBm (1 W)1. |
| Spectral Power Density | ≤ 17 dBm/MHz (50 mW/MHz)1. |
| Antenna Gain Adjustment | If antenna gain > 6 dBi, reduce power/density by the excess gain (e.g., 7 dBi → 1 dB reduction)1. |
6. Aircraft Radar and SLMA Systems
Brazil has revised requirements for Service Limitado Móvel Aeronáutico (SLMA) and aircraft radar2.
Key Updates:
- SLMA Power Limits (Ato SOR nº 17.207/2023):
- Channel Aggregation: Permitted for 2.850–22.000 kHz (per RR 27/18A.1)2.
- Aircraft Radar (76–81 GHz): Permitted in airport areas if compliant with Item 9.51.
Summary Answer
Brazil’s updated technical requirements for telecommunications and audio-video equipment introduce specific EIRP limits, emission controls, and operational conditions for millimeter wave sensors (46.7–46.9 GHz, 57–71 GHz, 76–81 GHz), ultra-high-frequency bands (116–246 GHz), wireless audio systems (54–608 MHz), and 5 GHz Wi-Fi1. Key compliance obligations include:
- Vehicle radars must adhere to temporary conditions under Ato nº 4776/2020 for 46.7–46.9 GHz and Item 9.5 for 76–81 GHz1.
- Millimeter wave sensors in 57–71 GHz face EIRP limits (40–43 dBm) and out-of-band emission restrictions (10–13 dBm)1.
- Wireless audio systems must comply with ETSI EN 300 422-1 for frequency stability, unwanted emissions, and channel allocation1.
- 5 GHz Wi-Fi is capped at 30 dBm (1 W) conducted power with antenna gain adjustments1.
- Aircraft operations are restricted for 57–71 GHz devices (except closed networks) and prohibited for 116–246 GHz equipment1, 2.
These updates align with Resolução nº 772/2025 (PDFF) and ITU Radio Regulations (WRC-23)2, ensuring spectrum efficiency and radiation safety while supporting 5G and IoT technologies. Manufacturers and operators must verify compliance with Anatel’s homologation procedures (e.g., Ato nº 4088/2020)3.
Sources
- ↩ WTO TBT notification 25-06974 — Brazil https://members.wto.org/crnattachments/2025/TBT/BRA/25_06974_00_x.pdf
- ↩ WTO TBT notification 25-06552 — Brazil https://members.wto.org/crnattachments/2025/TBT/BRA/25_06552_00_x.pdf
- ↩ WTO TBT notification 25-08214 — Brazil https://members.wto.org/crnattachments/2025/TBT/BRA/25_08214_00_x.pdf