[Code of Federal Regulations]
[Title 47, Volume 5]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR101.117]

[Page 694]
 
                       TITLE 47--TELECOMMUNICATION
 
                         COMMISSION (CONTINUED)
 
PART 101_FIXED MICROWAVE SERVICES--Table of Contents
 
                      Subpart C_Technical Standards
 
Sec.  101.117  Antenna polarization.

    Except as set forth herein, stations operating in the radio services 
included in this part are not limited as to the type of polarization of 
the radiated signal that may be employed. However, in the event 
interference in excess of permissible levels is caused to the operation 
of other stations as a result of employing other than linear 
polarization, the Commission may order a licensee to change its system 
polarization to mitigate the interference. No change in polarization may 
be made without prior authorization from the Commission. Unless 
otherwise allowed, only linear polarization (horizontal and vertical) 
shall be used. For LMDS systems, unless otherwise authorized, system 
operators are permitted to use any polarization within its service area, 
but only vertical and/or horizontal polarization for antennas located 
within 20 kilometers of the outermost edge of their service area.

[68 FR 4957, Jan. 31, 2003]