|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.
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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
CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
Subpart C_Intentional Radiators
Sec. 15.242 Operation in the bands 174-216 MHz and 470-668 MHz.
(a) The marketing and operation of intentional radiators under the
provisions of this section is restricted to biomedical telemetry devices
employed solely on the premises of health care facilities.
(1) A health care facility includes hospitals and other
establishments that offer services, facilities, and beds for use beyond
24 hours in rendering medical treatment and institutions and
organizations regularly engaged in providing medical services through
clinics, public health facilities, and similar establishments, including
governmental entities and agencies for their own medical activities.
(2) This authority to operate does not extend to mobile vehicles,
such as ambulances, even if those vehicles are associated with a health
(b) The fundamental emissions from a biomedical telemetry device
operating under the provisions of this section shall be contained within
a single television broadcast channel, as defined in part 73 of this
chapter, under all conditions of operation and shall lie wholly within
the frequency ranges of 174-216 MHz and 470-668 MHz.
(c) The field strength of the fundamental emissions shall not exceed
200 mV/m, as measured at a distance of 3 meters using a quasi-peak
detector. Manufacturers should note that a quasi-peak detector function
indicates field strength per 120 kHz of bandwidth 20 kHz. Accordingly, the total signal level over the
band of operation may be higher than 200 mV/m. The field strength of
emissions radiated on any frequency outside of the television broadcast
channel within which the fundamental is contained shall not exceed the
general limits in Sec. 15.209.
(d) The user and the installer of a biomedical telemetry device
operating within the frequency range 174-216 MHz, 470-608 MHz or 614-668
MHz shall ensure that the following minimum separation distances are
maintained between the biomedical telemetry device and the authorized
radio services operating on the same frequencies:
(1) At least 10.3 km outside of the Grade B field strength contour
(56 dBuV/m) of a TV broadcast station or
an associated TV booster station operating within the band 174-216 MHz.
(2) At least 5.5 km outside of the Grade B field strength contour
(64 dBuV/m) of a TV broadcast station or an associated TV booster
station operating within the bands 470-608 MHz or 614-668 MHz.
(3) At least 5.1 km outside of the 68 dBuV/m field strength contour
of a low power TV or a TV translator station operating within the band
(4) At least 3.1 km outside of the 74 dBuV/m field strength contour
of a low power TV or a TV translator station operating within the bands
470-608 MHz or 614-668 MHz.
(5) Whatever distance is necessary to protect other authorized users
within these bands.
(e) The user and the installer of a biomedical telemetry device
operating within the frequency range 608-614 MHz and that will be
located within 32 km of the very long baseline array (VLBA) stations or
within 80 km of any of the other radio astronomy observatories noted in
footnote US 311 of Section 2.106 of this chapter must coordinate with,
and obtain the written concurrence of, the director of the affected
radio astronomy observatory before the equipment can be installed or
operated. The National Science Foundation point of contact for
coordination is: Spectrum Manager, Division of Astronomical Sciences,
NSF Rm 1045, 4201 Wilson Blvd., Arlington, VA 22230; tel: (703) 306-
(f) Biomedical telemetry devices must not cause harmful interference
to licensed TV broadcast stations or to other authorized radio services,
such as operations on the broadcast frequencies under subparts G and H
of part 74 of this chapter, land mobile stations operating under part 90
of this chapter in the 470-512 MHz band, and radio astronomy operation
in the 608-614 MHz band. (See Sec. 15.5.) If harmful interference
occurs, the interference must either be corrected or the device must
immediately cease operation on the occupied frequency. Further, the
operator of the biomedical telemetry device must accept whatever level
of interference is received from other radio operations. The operator,
i.e., the health care facility, is responsible for resolving any
interference that occurs subsequent to the installation of these
(g) The manufacturers, installers, and users of biomedical telemetry
devices are reminded that they must ensure that biomedical telemetry
transmitters operating under the provisions of this section avoid
operating in close proximity to authorized services using this spectrum.
Sufficient separation distance, necessary to avoid causing or receiving
harmful interference, must be maintained from co-channel operations.
These parties are reminded that the frequencies of the authorized
services are subject to change, especially during the implementation of
the digital television services. The operating frequencies of the part
15 devices may need to be changed, as necessary and in accordance with
the permissive change requirements of this chapter, to accommodate
changes in the operating frequencies of the authorized services.
(h) The manufacturers, installers and users of biomedical telemetry
devices are cautioned that the operation of this equipment could result
in harmful interference to other nearby medical devices.
[62 FR 58658, Oct. 30, 1997]