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Office of Engineering and Technology Laboratory Division Knowledge Database (KDB)

Welcome to the OET Laboratory Division Knowledge Database (KDB). The FCC Office of Engineering and Technology (OET) publishes equipment authorization procedures and measurement guidance in the form of FCC Public Notices and Knowledge Database (KDB) publications. The staff guidance provided in the KDB is intended to assist the public in following Commission requirements and does not constitute rules. Accordingly, the guidance is not binding on the Commission and will not prevent the Commission from making a different decision in any matter that comes to its attention for resolution.

The Basic KDB Search is a full text search and the Advanced KDB Search allows for input of multiple search criteria. The KDB Publication Number search is a quick search for a specific publication. We hope that your visit is both timely and useful.

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Publication Searches:

Basic KDB Search: Enter a text string in the field below. This search scans the Knowledge Database for any publications that include the text entered. Alternative search results can be obtained by using the syntax described by clicking here.
Text search:

Advanced KDB Search: Search for publications that meet one or more identified criteria.

Major Guidance Publications: View publications associated with major guidance categories.

KDB Publication Number Search: Search for a specific publication by entering the publication number:
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Recent KDB Publications:
Publication NumberQuestionAnswer
285076  What are the equipment authorization requirements for hearing aid compatibility of mobile handsets? The attached documents below: 285076 D01 HAC Guidance v04r01-provides equipment authorization guidance for mobile handsets subject to the requirements of Section 20.19 for hearing aid compatibility. 285076 D02 T-Coil testing for CMRS IP v02 ...
926956  What is the transition plan for implementation of the new U-NII rules adopted by the Commission in ET Docket No. 13-49? The Commission adopted new U-NII rules in the First Report and Order (FCC 14-30 in ET Docket No. 13-49) and further amended the rules in  MO&O (FCC 16-24) effective May 6, 2016. In adopting the revised rules, the Commission established several tr...
935210  What is the Commission guidance for the evaluation of Signal Boosters? FCC Report and Order (FCC 13-21 and rules modified per Order FCC-14-138) introduced a new regulatory framework for signal boosters, including the introduction of a Network Protection Standard that specifies the technical and operational requirements neces...
558074  What are the test procedures for measuring Digital Transmission System (DTS) devices subject to the requirements in Section 15.247? Attachment 558074 D01 DTS Meas Guidance below provides guidance for performing compliance measurements on Digital Transmission Systems (DTS) operating under Section 15.247. The Commission revised the rules for DTS devices operating in the 5725-5850 MHz...
905462  What test guidance should be followed to demonstrate compliance for U-NII devices subject to DFS requirements? See attachment 905462 D07 Overview UNII Rules v01r01 for an overview of the test guidance for U-NII devices subject to the DFS requirements.  Special Note:  The test procedures for DFS compliance for U-NII-2 devices have been updated ...
388624  What devices require FCC guidance prior to a TCB issuing a grant of equipment authorization, and what are the procedures to obtain this guidance? The attached documents provide guidance on the FCC §2.964 Pre-Approval Guidance (PAG) procedure §2.964 formerly known as the Permit But Ask (PBA) procedure. Attachment 388624 D02 Pre-Approval Guidance List v16v02 provides the current list of devices ...
726920  How can information included with a request for an equipment authorization be held confidential? The attachment below 726920 D01 Confidentiality Request Procedures v01r02 provides guidance for requesting information be held confidential.
789033  What are the test procedures for measuring U-NII devices subject to the requirements in Section 15, Subpart E? The Commission initially revised the rules for U-NII devices in 2014 (FCC 14-30, ET Docket No. 13-49).  Subsequently, the Commission updated some of the rules for devices operating in the U-NII-3 band on March 2, 2016 (FCC 16-24, ET Docket No. 13-49;...
287378  What information and equipment do I need to provide to the FCC when I submit a device to the FCC Lab in response to a sample request received from the FCC? When the FCC requests that a device be submitted to the FCC Lab for auditing, the attached document  287378 D01 Equipment Shipping Instructions v03 provides the equipment shipping instructions which include the shipping address and the Return Sh...

Recent Guidelines and Interpretations:

Posted on Apr 28 2009 3:02PM:

Updates will be forthcoming.

Important Notes:

Inquiry Responses and Publications: FCC staff publications and replies to inquiries from the KDB are based on one or more of the following criteria:

1. Responses that the FCC staff have given to prior inquiries.
2. Staff guidance of the Commission's rules and policies.
3. Prior staff practices

The KDB publications regarding measurement procedures constitute staff guidance only and do not necessarily represent the only acceptable methods for measuring RF emissions. Nor are these guidelines binding on the Commission or any interested party.

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