FCC 47 C.F.R. 22.371
This rule applies to Wireless Carriers, and those who Construct
Towers.
Code of Federal Regulations]
[Title 47, Volume 2, Parts 20 to 39]
[Revised as of October 1, 2000]
From the U.S. Government Printing Office via GPO Access
[
CITE: 47 CFR 22.371][Page 138-139]
Subpart C--Operational and Technical Requirement
TELECOMMUNICATION COMMISSION
PART 22--PUBLIC MOBILE SERVICES--Table of
Contents
Sec. 22.371 Disturbance of AM broadcast station antenna patterns. Public Mobile Service licensees that construct or modify towers in the immediate vicinity of AM broadcast stations are responsible for
measures necessary to correct disturbance of the AM station antenna pattern which causes operation
outside of the radiation parameters specified by the FCC for the AM station, if the disturbance occurred as
a result of such construction or modification.(a) Non-directional AM stations. If tower construction or
modification is planned within 1 kilometer (0.6 mile) of a non-directional AM broadcast station tower, the
Public Mobile Service licensee must notify the licensee of the AM
broadcast station in advance

of the planned construction or modification. Measurements must be made to determine whether the
construction or modification affected the AM station antenna pattern. The Public Mobile Service licensee is
responsible for the installation and continued maintenance of any detuning apparatus necessary to restore
proper non-directional performance of the AM station tower.(b) Directional AM stations. If tower construction
or modification is planned within 3 kilometers (1.9 miles) of a directional AM broadcast station array, the
Public Mobile Service licensee must notify the licensee the AM broadcast station in advance of the planned
construction or modification. Measurements must be made to determine whether the construction or
modification affected the AM station antenna pattern. The Public Mobile Service licensee is responsible for
the installation and continued maintenance of any detuning apparatus necessary to restore proper
performance of the AM station array.
