On March 27th, 2018, the Brazilian National Telecommunications Agency (ANATEL) published Act 2311, which postpones the requirement for radiated emissions and interference immunity testing. This is to allow the Agency, along with the Designated Certification Bodies (OCDs) and laboratories, to develop studies that enable a standardized test rule to be established for assessing compliance of narrowband radio communication equipment. The Agency further intends to optimize testing without affecting compliance with electromagnetic compatibility requirements.
Different interpretations have been noted regarding application of the technical requirements in the planning and execution of testing. Accordingly, during the course of 2018, between the publication of Act 14448 and the date on which item 4.1.6 of this Act becomes effective, the laboratories and OCDs will indicate the need to standardize and optimize the assessment plan for equipment with multiple access technologies (802.11a, 802.11b, 802.11n, 802.11ac, Bluetooth), different operating frequencies (2.4 GHz, 5.1 GHz, 5.4 GHz, 5.8 GHz) and different bandwidths (20 MHz, 40 MHz, 80 MHz).
Understanding Resolution 680, dated June 27th, 2017 and Acts…
Resolution 680, dated June 27th, 2017, marks the restructuring of technical requirements for narrowband radio communication equipment, which were previously published in full by Resolution 506, dated July 1st, 2008.
As of Resolution 680, dated June 27th, 2017, the technical requirements are dealt with separately. The Resolution includes the general technical requirements and the Act covers the specific technical requirements and testing procedures.
The main purpose of this separation is to make publications of specific technical requirements more dynamic and able to keep up with continual developments and innovations in the telecommunications sector, given that the Act is approved by the Superintendence and Resolution by the Agency’s board of directors.
Accordingly, the certification of Narrowband Radio Communication products shall be subject to the legislation described below:
- Resolution 680 – This is the main regulation for certification of Narrowband Radio Communication products. It provides the general certification requirements and refers to Acts as necessary. Since this is a resolution, it cannot change constantly and the information it contains is considered generally applicable and common to all equipment.
- Act 11542 – This is basically divided between Appendix I (Technical Requirements) and Appendix II (Testing Procedure). With the revocation of Appendix I by Act 14448, Act 11542 describes the testing procedure and sample configuration.
- Act 14448 – Act published by ANATEL for Narrowband Radio Communication products. This Act updates Act 11542 with respect to Technical Requirements for this type of product. The main changes in this Act regarding product certification are as follows:
- Sub-item 4.1.6 establishes applicability of the Electromagnetic Compatibility requirements;
- The out-of-band or spurious emission limits for the frequency bands 72-73 MHz, 74.6-74.8 MHz and 75.2-76 MHz are described in table XV of item 20;
- The change in the narrowband frequency range for wireless microphones from 614-806 MHz to 614-698 MHz is also mentioned in table XV of item 20.
Os Requisitos do Act 14448 was published in the official gazette on January 2nd, 2018 and the requirements listed above were scheduled to come into force 90 days thereafter on April 2nd, 2018.
However, ANATEL published Act 2311 which extends this deadline for three months or until such time the Agency completes studies for establishment and publication of a standardized testing rule, whichever occurs first.
If we consider the effective date to be that provided by the three-month extension, the start date for radiated emissions testing of narrowband radio communication products will be June 29th, 2018.
Sub-item 4.1.6 is the most significant change established by Act 14448, since it requires application of electromagnetic compatibility (EMC) tests in their entirety, including radiated emissions testing and immunity to radiated radiofrequency interference. These items were previously excluded by the category II technical requirements, which were revised on February 12th, 2018 and no longer mention the EMC tests applied to narrowband radio communication products, this matter coming under the specific guidelines described in Act 14448.
Lastly, for the time being Resolution 680 should be followed for the certification of narrowband radio communication products. This Resolution refers to Act 11542 for matters related to the testing procedure and Act 14448 for matters related to technical requirements. It should be noted that Act 14448 is already in force and it is only the aforementioned sub-items that impact certifications, approvals and maintenance that become effective in April.
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Refer to Act 2311 for more details on the changes!