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Copyright 1999-2015

FCC Part 15 Radio Frequency Devices
Section 15.237

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: 47CFR15.237]
[Page 814-815]
                       TITLE 47--TELECOMMUNICATION
                     Subpart C_Intentional Radiators
Sec. 15.237  Operation in the bands 72.0-73.0 MHz, 74.6-74.8 MHz
and 75.2-76.0 MHz.
    (a) The intentional radiator shall be restricted to use as an 
auditory assistance device.
    (b) Emissions from the intentional radiator shall be confined within 
a band 200 kHz wide centered on the operating frequency. The 200 kHz 
band shall lie wholly within the above specified frequency ranges.
    (c) The field strength of any emissions within the permitted 200 kHz 
band shall not exceed 80 millivolts/meter at 3 meters. The field 
strength of any emissions radiated on any frequency outside of the 
specified 200 kHz band shall not exceed 1500 microvolts/meter at 3 
meters. The emission limits in this paragraph are based on measurement 
instrumentation employing
[[Page 815]]
an average detector. The provisions in Sec. 15.35 for limiting peak 
emissions apply.
[54 FR 17714, Apr. 25, 1989, as amended at 57 FR 13048, Apr. 15, 1992]

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