Sec. 15.255  Operation within the band 59.0-64.0 GHz.

    (a) Operation under the provisions of this section is not permitted 
for the following products:
    (1) Equipment used on aircraft or satellites; and
    (2) Field disturbance sensors, including vehicle radar systems, 
unless the field disturbance sensors are employed for fixed operation. 
For the purposes of this section, the reference to fixed operation 
includes field disturbance sensors installed in fixed equipment, even if 
the sensor itself moves within the equipment.
    (b) Within the 59-64 GHz band, emission levels shall not exceed the 
following:
    (1) For products other than fixed field disturbance sensors, the 
power density of any emission shall not exceed 9 W/cm \2\ at a 
distance of 3 meters;
    (2) For fixed field disturbance sensors that occupy 500 MHz or less 
of bandwidth and that are contained wholly within the frequency band 
61.0-61.5 GHz, the power density of any emission within the band 61.0-
61.5 GHz shall not exceed 9 W/cm\2\ at a distance of 3 meters 
and the power density of any emission outside of the 61.0-61.5 GHz band, 
but still within the 59-64 GHz band, shall not exceed 9 nW/cm\2\ at a 
distance of 3 meters; and
    (3) For fixed field disturbance sensors other than those operating 
under the provisions of paragraph (b)(2) of this section, the peak 
transmitter output power shall not exceed 0.1 mW and the peak power 
density shall not exceed 9 nW/cm\2\ at a distance of 3 meters.


    Note to paragraph (b): Equipment may be authorized and operated on 
an interim basis under the provisions of this section provided it 
complies with the Spectrum Etiquette parameters contained in the 
December 13, 1996 submission from the Millimeter Wave Communications 
Working Group in ET Docket 94-124. Copies of the submission are 
available for inspection at the Federal Communications Commission 
Reference Center (Room 239), 1919 M Street, N.W., Washington, D.C., and 
may also be purchased from the Federal Communications Commission's 
duplication contractor, International Transcription Service, (202) 857-
3800, 1231 20th Street, N.W., Washington, D.C. 20036. The submission is 
also available for viewing on the FCC's internet website [http://
www.fcc.gov/oet/dockets/et94-124/].

    (c) The power density of any emissions outside the 59.0-64.0 GHz 
band shall consist solely of spurious emissions and shall not exceed 90 
pW/cm \2\ at a distance of 3 meters. The levels of the spurious 
emissions shall not exceed the level of the fundamental emission.
    (d) Radiated emissions below 40 GHz shall not exceed the general 
limits in Sec. 15.209.
    (e) The provisions in Sec. 15.35 limiting peak emissions apply.

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    (f) Fundamental emissions must be contained within the frequency 
bands specified in this section during all conditions of operation. 
Equipment is presumed to operate over the temperature range -20 to +50 
degrees celsius with an input voltage variation of 85% to 115% of rated 
input voltage, unless justification is presented to demonstrate 
otherwise.
    (g) Regardless of the power density levels permitted under this 
section, devices operating under the provisions of this section are 
subject to the radiofrequency radiation exposure requirements specified 
in Secs. 1.1307(b), 2.1091 and 2.1093 of this chapter, as appropriate. 
Applications for equipment authorization of devices operating under this 
section must contain a statement confirming compliance with these 
requirements for both fundamental emissions and unwanted emissions. 
Technical information showing the basis for this statement must be 
submitted to the Commission upon request.
[ 61 FR 14503 , Apr. 2, 1996, as amended at  61 FR 41018 , Aug. 7, 1996;  62 FR 45333 , Aug. 27, 1997]

    Effective Date Note: At  61 FR 14503 , Apr. 2, 1996, Sec. 15.255 was 
added and stayed indefinitely, effective May 2, 1996.

      Subpart D--Unlicensed Personal Communications Service Devices

    Source:  58 FR 59180 , Nov. 8, 1993, unless otherwise noted.