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FCC Part 15 Radio Frequency Devices
Section 15.519

The Federal Communications Commission (FCC) is the authority in the United States of America that creates and enforces the use of airwaves throughout the entire radio frequency spectrum. This group of documents contains the entirety of the FCC Part 15 regulations that concern unlicensed radio frequency devices. As with all government documents, this material is in the public domain and may be freely copied so long as the content is not changed. This copy is provided as a convenience for RF Cafe visitors. 

Click here for the Table of Contents.

 
[Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR15.519]
[Page 845-846]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
 
                   Subpart F_Ultra-Wideband Operation
 
Sec. 15.519  Technical requirements for hand held UWB systems.
    (a) UWB devices operating under the provisions of this section must 
be hand held, i.e., they are relatively small devices that are primarily 
hand held while being operated and do not employ a fixed infrastructure.
    (1) A UWB device operating under the provisions of this section 
shall transmit only when it is sending information to an associated 
receiver. The UWB intentional radiator shall cease transmission within 
10 seconds unless it receives an acknowledgement from the associated 
receiver that its transmission is being received. An acknowledgment of 
reception must continue to be received by the UWB intentional radiator 
at least every 10 seconds or the UWB device must cease transmitting.
    (2) The use of antennas mounted on outdoor structures, e.g., 
antennas mounted on the outside of a building or on a telephone pole, or 
any fixed outdoors infrastructure is prohibited. Antennas may be mounted 
only on the hand held UWB device.
    (3) UWB devices operating under the provisions of this section may 
operate indoors or outdoors.
    (b) The UWB bandwidth of a device operating under the provisions of 
this section must be contained between 3100 MHz and 10,600 MHz.
    (c) The radiated emissions at or below 960 MHz from a device 
operating under the provisions of this section shall not exceed the 
emission levels in Sec. 15.209. The radiated emissions above 960 MHz 
from a device operating under the provisions of this section shall not 
exceed the following average limits when measured using a resolution 
bandwidth of 1 MHz:
------------------------------------------------------------------------
                   Frequency in MHz                       EIRP in dBm
------------------------------------------------------------------------
960-1610.............................................              -75.3
1610-1990............................................              -63.3
1990-3100............................................              -61.3
3100-10600...........................................              -41.3
Above 10600..........................................              -61.3
------------------------------------------------------------------------
    (d) In addition to the radiated emission limits specified in the 
table in
[[Page 846]]
paragraph (c) of this section, UWB transmitters operating under the 
provisions of this section shall not exceed the following average limits 
when measured using a resolution bandwidth of no less than 1 kHz:
------------------------------------------------------------------------
                   Frequency in MHz                       EIRP in dBm
------------------------------------------------------------------------
1164-1240............................................              -85.3
1559-1610............................................              -85.3
------------------------------------------------------------------------
    (e) There is a limit on the peak level of the emissions contained 
within a 50 MHz bandwidth centered on the frequency at which the highest 
radiated emission occurs, fM. That limit is 0 dBm EIRP. It is 
acceptable to employ a different resolution bandwidth, and a 
correspondingly different peak emission limit, following the procedures 
described in Sec. 15.521.
[67 FR 34856, May 16, 2002; 67 FR 39632, June 10, 2002]



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