[Code of Federal Regulations]
[Title 47, Volume 2]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR24.238]

[Page 240]
 
                       TITLE 47--TELECOMMUNICATION
 
                    CHAPTER I--FEDERAL COMMUNICATIONS
                         COMMISSION (CONTINUED)
 
PART 24--PERSONAL COMMUNICATIONS SERVICES--Table of Contents
 
                        Subpart E--Broadband PCS
 
Sec. 24.238  Emission limitations for Broadband PCS equipment.

    The rules in this section govern the spectral characteristics of 
emissions in the Broadband Personal Communications Service.
    (a) Out of band emissions. The power of any emission outside of the 
authorized operating frequency ranges must be attenuated below the 
transmitting power (P) by a factor of at least 43 + 10 log(P) dB.
    (b) Measurement procedure. Compliance with these rules is based on 
the use of measurement instrumentation employing a resolution bandwidth 
of 1 MHz or greater. However, in the 1 MHz bands immediately outside and 
adjacent to the frequency block a resolution bandwidth of at least one 
percent of the emission bandwidth of the fundamental emission of the 
transmitter may be employed. A narrower resolution bandwidth is 
permitted in all cases to improve measurement accuracy provided the 
measured power is integrated over the full required measurement 
bandwidth (i.e. 1 MHz or 1 percent of emission bandwidth, as specified). 
The emission bandwidth is defined as the width of the signal between two 
points, one below the carrier center frequency and one above the carrier 
center frequency, outside of which all emissions are attenuated at least 
26 dB below the transmitter power.
    (c) Alternative out of band emission limit. Licensees in this 
service may establish an alternative out of band emission limit to be 
used at specified band edge(s) in specified geographical areas, in lieu 
of that set forth in this section, pursuant to a private contractual 
arrangement of all affected licensees and applicants. In this event, 
each party to such contract shall maintain a copy of the contract in 
their station files and disclose it to prospective assignees or 
transferees and, upon request, to the FCC.
    (d) Interference caused by out of band emissions. If any emission 
from a transmitter operating in this service results in interference to 
users of another radio service, the FCC may require a greater 
attenuation of that emission than specified in this section.

[67 FR 77192, Dec. 17, 2002]

   Policies Governing Microwave Relocation From the 1850-1990 MHz Band