[Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR15.225]

[Page 823]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
 
                     Subpart C_Intentional Radiators
 
Sec.  15.225  Operation within the band 13.110-14.010 MHz.

    (a) The field strength of any emissions within the band 13.553-
13.567 MHz shall not exceed 15,848 microvolts/meter at 30 meters.
    (b) Within the bands 13.410-13.553 MHz and 13.567-13.710 MHz, the 
field strength of any emissions shall not exceed 334 microvolts/meter at 
30 meters.
    (c) Within the bands 13.110-13.410 MHz and 13.710-14.010 MHz the 
field strength of any emissions shall not exceed 106 microvolts/meter at 
30 meters.
    (d) The field strength of any emissions appearing outside of the 
13.110-14.010 MHz band shall not exceed the general radiated emission 
limits in Sec.  15.209.
    (e) The frequency tolerance of the carrier signal shall be 
maintained within 0.01% of the operating frequency 
over a temperature variation of -20 degrees to +50 degrees C at normal 
supply voltage, and for a variation in the primary supply voltage from 
85% to 115% of the rated supply voltage at a temperature of 20 degrees 
C. For battery operated equipment, the equipment tests shall be 
performed using a new battery.
    (f) In the case of radio frequency powered tags designed to operate 
with a device authorized under this section, the tag may be approved 
with the device or be considered as a separate device subject to its own 
authorization. Powered tags approved with a device under a single 
application shall be labeled with the same identification number as the 
device.

[68 FR 68546, Dec. 9, 2003]