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FCC RIN: 3060-AH47 Publication ID: Fall 2008 
Title: Revision of the Rules Regarding Ultra-Wideband Transmission 
Abstract: The First Report and Order amends the Commission's rules to permit the marketing and operation of certain types of new products incorporating Ultra-Wideband (UWB) technology. UWB devices operate by employing very narrow or short duration pulses that result in very large or wideband transmission bandwidths. UWB technology holds great promise for a vast array of new applications that we believe will provide significant benefits for public safety, businesses and consumers. With appropriate technical standards, UWB devices can operate using spectrum occupied by existing radio services without causing interference, thereby permitting scarce spectrum resources to be used more efficiently. The Memorandum Opinion and Order responded to fourteen petitions for reconsideration that were filed in response to the regulations for unlicensed ultra-wideband (UWB) operations. In general, this document does not make any significant changes to the existing UWB parameters as the Commission is reluctant to do so until it has more experience with UWB devices. The Commission believes that any major changes to the rules for existing UWB product categories at this early stage would be disruptive to current industry product development efforts. The Further Notice of Proposed Rule Making proposed new rules to address issues raised by some of the petitions for reconsideration that were outside the scope of the proceeding. New rules were proposed to address issues regarding the operation of low pulse repetition frequency UWB systems, including vehicular radars, in the 3.1-10.6 GHz band; and the operation frequency hopping vehicular radars in the 22-29 GHz band as UWB devices. The Commission also proposed new rules that would establish new peak power limits for wideband part 15 devices that do no operate as UWB devices and proposed to eliminate the definition of a UWB device. The Second Report and Order and Second Memorandum Opinion and Order responds to two petitions for reconsideration that were filed in response to the Commission's decision to establish regulations for unlicensed UWB operation. It also responds to the rule making proposals contained in the Memorandum Opinion and Order and Further Notice of Proposed Rule Making in this docket. The order establishes new rules for wideband unlicensed devices operating in the 5925-7250 MHz, 16.2-17.7 GHz, and 22.12-29 GHz bands. 
Agency: Federal Communications Commission(FCC)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: No  Unfunded Mandates: No 
CFR Citation: 47 CFR 15   
Legal Authority: 47 USC 154    47 USC 302 to 304    47 USC 307    47 USC 544A   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  06/14/2000  65 FR 37332   
NPRM Comment Period End  10/12/2000    
First R&O  05/16/2002  67 FR 34852   
MO&O  04/22/2003  68 FR 19746   
FNPRM  04/22/2003  68 FR 19773   
Second R&O and Second MO&O  02/09/2005  70 FR 6771   
Next Action Undetermined  To Be Determined    
Additional Information: ET Docket No. 98-153
Regulatory Flexibility Analysis Required: Yes  Government Levels Affected: None 
Small Entities Affected: Businesses  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: Yes 
Agency Contact:
John Reed
Electronics Engineer
Federal Communications Commission
Office of Engineering and Technology, 445 12th Street SW.,
Washington, DC 20554
Phone:202 418-2455
Fax:202 418-1944
Email: jreed@fcc.gov