[Code of Federal Regulations]

[Title 47, Volume 5]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 47CFR101.117]



[Page 649]

 

                       TITLE 47--TELECOMMUNICATION

 

        CHAPTER I--FEDERAL COMMUNICATIONS 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]