1. Washington Laboratories (301) 417-0220 web: www.wll.com7560 Lindbergh Dr. Gaithersburg, MD 20879 How to Create a Part 15C Report

2. What is Part 15C? Part 15C is the Rule section set aside for “Intentional Radiators” Covers low power devices which are “License Exempt” oPart 15D, E, and F devices also are considered “Intentional Radiators” and follow the outline of this chapter. Only Part 15C devices are considered here because they generally are more common

3. What is an “Intentional Radiator” An Intentional Radiator is the legal term used by FCC to cover all cases of low power license exempt transmitters. These transmitters typically are used for short range communications, remote control, or field disturbance sensors. Each rule has it is own requirements.

4. Test Report Construction Notes All Part 15C devices use ANSI C63.4 as a basis for report construction. All Part 15C reports use all information in the previous Part 15B presentation, and then adds more requirements. oSee “How to Create a Part 15B Report”

5. Building a Test Report All Part 15 filings use ANSI C63.4 as a guide for building Test Reports. See Section 10 for general report requirements. Details of the measuring equipment and OATS are required. Photographs of the Test Setup are necessary.

6. Required Exhibits AmericanTCB has it’s own easy-to- use application form in MS Word format for use in all filings. A completed Application is required before any work can proceed. In addition to the Test Report a number of specific Exhibits are required.

7. Exhibits which accompany all filings oLabel oInternal Photographs oExternal Photographs oCover Letters oOperational Description* oSchematics* oBlock Diagrams* oManual oTest Setup Photographs o* Can be held “Confidential”

8. Additional Exhibits Part 15C Spread Spectrum transmitters (802.11g and Bluetooth) are required to submit RF Exposure information because the Rules allow relatively high power. oPart 15D (Unlicensed PCS) and Part 15E (802.11a) also have specific RF Exposure requirements

9. RF Exposure RF Exposure is a complex area and is relatively one of the newest sections of the Rules. Requirements are still changing and may need additional care before testing or filing oCheck and consult with ATCB to determine if any recent regulatory changes

10. Finding FCC Regulations The Government Printing Office now provides on-line FCC Rules. These are the most recent available and usually are the best for updates http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&tpl=%2Findex.tpl

15. Laboratory Test Procedures The FCC does not maintain a current listing of test procedures for Part 15C devices. FCC prefers to use industry standards from IEEE. However, many changes are not documented adequately. oCheck with ATCB for proper current testing methodologies.

16. Restricted Bands Certain protected frequency bands are considered vital to our national interests. No transmitter may have any fundamental emissions within the specified bands in the following table Only radiated spurious emissions which meet the Class B limits are permitted

18. Antennas FCC considers Part 15 transmitters to be approved as a unified system from the transmitter, coax and antenna. Only antennas approved with the device are allowed to be used. oNew or additional antennas are permitted but only through the Class II Permissive Change process

19. Antenna Connectors Antenna connectors accessible by the end user must be unique. The idea is that they should discourage the end user from ever utilizing any non-approved antennas oMust fail the “Radio Shack” test

20. Amplifiers Amplifiers are not permitted to be added to any Part 15 transmitter except in very explicit situations. Amplifiers must be paired with specific, separately approved and Certified unlicensed intentional radiators only. Very specific and restrictive marketing requirements apply.

21. Controls End users must not be given any ability to change the operating parameters to operate outside of it’s operational parameters. oFor 802.11g devices, this means that the end user must not be given access to country codes to allow operations on Channels 12 or 13.

22. Modular Approvals Modular Approvals and Limited Modular Approvals (LMA) are permitted under the Rules. These allow third party manufacturers to incorporate Certified transmitters into their equipment easily Specific additional documentation requirements are required. oSee ATCB for the latest changes to Modular Approval interpretations

23. Questions? whgraff@atcb.com major@atcb.com jerry@atcb.com