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FCC Part 15 Radio Frequency Devices
Section 15.513

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: 47CFR15.513]
[Page 843]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
 
                   Subpart F_Ultra-Wideband Operation
 
Sec. 15.513  Technical requirements for medical imaging systems.
    (a) The UWB bandwidth of an imaging system operating under the 
provisions of this section must be contained between 3100 MHz and 10,600 
MHz.
    (b) Operation under the provisions of this section is limited to 
medical imaging systems used at the direction of, or under the 
supervision of, a licensed health care practitioner. The operation of 
imaging systems under this section requires coordination, as detailed in 
Sec. 15.525.
    (c) A medical imaging system shall contain a manually operated 
switch that causes the transmitter to cease operation within 10 seconds 
of being released by the operator. In lieu of a switch located on the 
imaging system, it is permissible to operate an imaging system by remote 
control provided the imaging system ceases transmission within 10 
seconds of the remote switch being released by the operator.
    (d) 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..................................................         -65.3
1610-1990.................................................         -53.3
011990-3100...............................................         -51.3
3100-10600................................................         -41.3
Above 10600...............................................         -51.3
------------------------------------------------------------------------
    (e) In addition to the radiated emission limits specified in the 
table in paragraph (d) 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...............................................           -75.3
1559-1610...............................................           -75.3
------------------------------------------------------------------------
    (f) 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.
[68 FR 19751, Apr. 22, 2003, as amended at 72 FR 63823, Nov. 13, 2007]



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