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FCC Part 15 Radio Frequency Devices
Section 15.510

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: 47CFR15.510]
[Page 841-842]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
 
                   Subpart F_Ultra-Wideband Operation
 
Sec. 15.510  Technical requirements for through D-wall imaging systems.
    (a) The UWB bandwidth of an imaging system operating under the 
provisions of this section must be below 960 MHz or the center 
frequency, fC, and the frequency at which the highest 
radiated emission occurs, fM, must be contained between 1990 
MHz and 10600 MHz.
    (b) Operation under the provisions of this section is limited to 
through-wall imaging systems operated by law enforcement, emergency 
rescue or firefighting organizations that are under the authority of a 
local or state government.
    (c) For through-wall imaging systems operating with the UWB 
bandwidth below 960 MHz:
    (1) Parties operating this equipment must be eligible for licensing 
under the provisions of part 90 of this chapter.
    (2) The operation of these imaging systems requires coordination, as 
detailed in Sec. 15.525.
    (3) The 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.
    (4) The radiated emissions at or below 960 MHz shall not exceed the 
emission levels in Sec. 15.209. The radiated emissions above 960 MHz 
shall not exceed the following average limits when
[[Page 842]]
measured using a resolution bandwidth of 1 MHz:
------------------------------------------------------------------------
                     Frequency in MHz                        EIRP in dBm
------------------------------------------------------------------------
960-1610..................................................         -65.3
1610-1990.................................................         -53.3
Above 1990................................................         -51.3
------------------------------------------------------------------------
    (5) In addition to the radiated emission limits specified in the 
table in paragraph (c)(4) of this section, emissions from these imaging 
systems 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
------------------------------------------------------------------------
    (d) For equipment operating with fC and fM 
between 1990 MHz and 10600 MHz:
    (1) Parties operating this equipment must hold a license issued by 
the Federal Communications Commission to operate a transmitter in the 
Public Safety Radio Pool under part 90 of this chapter. The license may 
be held by the organization for which the UWB operator works on a paid 
or volunteer basis.
    (2) This equipment may be operated only for law enforcement 
applications, the providing of emergency services, and necessary 
training operations.
    (3) The radiated emissions at or below 960 MHz shall not exceed the 
emission levels in Sec. 15.209 of this chapter. The radiated emissions 
above 960 MHz shall not exceed the following average limits when 
measured using a resolution bandwidth of 1 MHz:
------------------------------------------------------------------------
                     Frequency in MHz                        EIRP in dBm
------------------------------------------------------------------------
960-1610..................................................         -46.3
1610-10600................................................         -41.3
Above 10600...............................................         -51.3
------------------------------------------------------------------------
    (4) In addition to the radiated emission limits specified in the 
paragraph (d)(3) of this section, emissions from these imaging systems 
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.................................................         -56.3
1559-1610.................................................         -56.3
------------------------------------------------------------------------
    (5) 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.
    (e) Through-wall imaging systems operating under the provisions of 
this section shall bear the following or similar statement in a 
conspicuous location on the device: ``Operation of this device is 
restricted to law enforcement, emergency rescue and firefighter 
personnel. Operation by any other party is a violation of 47 U.S.C. 301 
and could subject the operator to serious legal penalties.''
[68 FR 19750, Apr. 22, 2003]



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