FCC 5.85 Revised as of October 1, 2007
Goto Year:2006 |
2008
Sec. 5.85 Frequencies and policy governing their assignment.
(a) Stations operating in the Experimental Radio Service may be authorized
to use any government or non-government frequency designated in the Table of
Frequency Allocations set forth in part 2 of this chapter, provided that the
need for the frequency requested is fully justified by the applicant.
(b) Each frequency or band of frequencies available for assignment to
stations in the Experimental Radio Service is available on a shared basis
only, and will not be assigned for the exclusive use of any one applicant,
and such use may also be restricted to one or more specified geographical
areas. Not more than one frequency in a band of frequencies will normally be
assigned for the use of a single applicant unless a showing is made
demonstrating that need for the assignment of additional frequencies is
essential to the proposed program of experimentation.
(c) Frequency assignments will be made only on the condition that harmful
interference will not be caused to any station operating in accordance with
the Table of Frequency Allocation of part 2 of this chapter.
(d) Use of Public Safety Frequencies. Applicants in the Experimental Radio
Service must avoid use of public safety frequencies except when a compelling
showing can be made that use of such frequencies is in the public interest.
Public safety frequencies are identified in subpart B (Public Safety Radio
Services) and subpart C (Special Emergency Radio Service) of part 90 of this
Chapter. In addition, subpart S of part 90 of this chapter contains rules
for the assignment of frequencies that may be used by Public Safety Radio
Services in the 806–824 MHz and 851–869 MHz bands. If an experimental
license to use public safety radio frequencies is granted, the authorization
will be conditioned to require coordination between the experimental
licensee and the appropriate frequency coordinator and/or all of the public
safety licensees in its intended area of operation.
(e) The Commission may, at its discretion, condition any experimental
license or STA on the requirement that before commencing operation, the new
licensee coordinate its proposed facility with other licensees that may
receive interference as a result of the new licensee's operations.
(f) Protection of FCC monitoring stations. (1) Applicants are advised to
give consideration, prior to filing applications, to the need to protect FCC
monitoring stations from harmful interference. Geographical coordinates of
such stations are listed in Sec. 0.121(b) of this chapter. Applications for
stations (except mobile stations) that will produce on any frequency a
direct wave fundamental field strength of greater than 10 mV/m in the
authorized bandwidth of service (–65.8 dBW/m^2 power flux density assuming a
free space characteristic impedance of 120π ohms) at the referenced
coordinates, may be examined to determine the extent of possible
interference. Depending on the theoretical field strength value or other
ambient radio field signal levels at the indicated coordinates, a clause
protecting the monitoring station may be added to the station authorization.
(2) In the event that calculated value of expected field strength exceeds 10
mV/m (–65.8 dBW/m^2 ) at the reference coordinates, or if there is any
question whether field strength levels might exceed the threshold value,
advance consultation with the FCC to discuss any protection necessary should
be considered. Prospective applicants may communicate with the Technology
Division, Compliance and Information Bureau, telephone (202) 418–1210,
Federal Communications Commission, Washington, DC 20554.
(3) Advance consultation is suggested particularly for those applicants who
have no reliable data that indicates whether the field strength or power
flux density figure indicated would be exceeded by their proposed radio
facilities (except mobile stations). In such instances, the following is a
suggested guide for determining whether an applicant should coordinate:
(i) All stations within 2.4 kilometers (1.5 statute miles);
(ii) Stations within 4.8 kilometers (3 statute miles) with 50 watts or more
average ERP in the primary plane of polarization in the azimuthal direction
of the Monitoring Station;
(iii) Stations within 16 kilometers (10 statute miles) with 1 kW or more
average ERP in the primary plane of polarization in the azimuthal direction
of the Monitoring Station;
(iv) Stations within 80 kilometers (50 statute miles) with 25 kW or more
average ERP in the primary plane of polarization in the azimuthal direction
of the Monitoring Station.
(4) Advance coordination for stations operating above 1000 MHz is
recommended only where the proposed station is in the vicinity of a
monitoring station designated as a satellite monitoring facility in
Sec. 0.121(c) of this Chapter and also meets the criteria outlined in paragraphs
(d) (2) and (3) of this section.
(5) The Commission will not screen applications to determine whether advance
consultation has taken place. However, applicants are advised that such
consultation can avoid objections from the Commission.
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