[Federal Register Volume 75, Number 141 (Friday, July 23, 2010)]
[Rules and Regulations]
[Pages 43088-43090]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-18233]
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FEDERAL COMMUNICATIONS COMMISSION
47 CFR Parts 24 and 27
Personal Communications Services and Miscellaneous Wireless
Communications Services
CFR Correction
In Title 47 of the Code of Federal Regulations, Parts 20 to 39,
revised as of October 1, 2009, on page 148, Sec. 24.232 is revised and
on page 336, in Sec. 27.50, paragraph (d) is revised to read as
follows:
Sec. 24.232 Power and antenna height limits.
(a)(1) Base stations with an emission bandwidth of 1 MHz or less
are limited to 1640 watts equivalent isotropically radiated power
(EIRP) with an antenna height up to 300 meters HAAT, except as
described in paragraph (b) below.
(2) Base stations with an emission bandwidth greater than 1 MHz are
limited to 1640 watts/MHz equivalent isotropically radiated power
(EIRP) with an antenna height up to 300 meters HAAT, except as
described in paragraph (b) below.
(3) Base station antenna heights may exceed 300 meters HAAT with a
corresponding reduction in power; see Tables 1 and 2 of this section.
(4) The service area boundary limit and microwave protection
criteria specified in Sec. Sec. 24.236 and 24.237 apply.
Table 1--Reduced Power for Base Station Antenna Heights Over 300 Meters,
With Emission Bandwidth of 1 MHz or Less
------------------------------------------------------------------------
Maximum
HAAT in meters EIRP watts
------------------------------------------------------------------------
<=300...................................................... 1640
<=500...................................................... 1070
<=1000..................................................... 490
<=1500..................................................... 270
<=2000..................................................... 160
------------------------------------------------------------------------
[[Page 43089]]
Table 2--Reduced Power for Base Station Antenna Heights Over 300 Meters,
With Emission Bandwidth Greater Than 1 MHz
------------------------------------------------------------------------
Maximum
HAAT in meters EIRP watts/
MHz
------------------------------------------------------------------------
<=300...................................................... 1640
<=500...................................................... 1070
<=1000..................................................... 490
<=1500..................................................... 270
<=2000..................................................... 160
------------------------------------------------------------------------
(b)(1) Base stations that are located in counties with population
densities of 100 persons or fewer per square mile, based upon the most
recently available population statistics from the Bureau of the Census,
with an emission bandwidth of 1 MHz or less are limited to 3280 watts
equivalent isotropically radiated power (EIRP) with an antenna height
up to 300 meters HAAT.
(2) Base stations that are located in counties with population
densities of 100 persons or fewer per square mile, based upon the most
recently available population statistics from the Bureau of the Census,
with an emission bandwidth greater than 1 MHz are limited to 3280
watts/MHz equivalent isotropically radiated power (EIRP) with an
antenna height up to 300 meters HAAT.
(3) Base station antenna heights may exceed 300 meters HAAT with a
corresponding reduction in power; see Tables 3 and 4 of this section.
(4) The service area boundary limit and microwave protection
criteria specified in Sec. Sec. 24.236 and 24.237 apply.
(5) Operation under this paragraph (b) at power limits greater than
permitted under paragraph (a) of this section must be coordinated in
advance with all broadband PCS licensees authorized to operate on
adjacent frequency blocks within 120 kilometers (75 miles) of the base
station and is limited to base stations located more than 120
kilometers (75 miles) from the Canadian border and more than 75
kilometers (45 miles) from the Mexican border.
Table 3--Reduced Power for Base Station Antenna Heights Over 300 Meters,
With Emission Bandwidth of 1 MHz or Less
------------------------------------------------------------------------
Maximum
HAAT in meters EIRP watts
------------------------------------------------------------------------
<=300...................................................... 3280
<=500...................................................... 2140
<=1000..................................................... 980
<=1500..................................................... 540
<=2000..................................................... 320
------------------------------------------------------------------------
Table 4--Reduced Power for Base Station Antenna Heights Over 300 Meters,
With Emission Bandwidth Greater Than 1 MHz
------------------------------------------------------------------------
Maximum
HAAT in meters EIRP watts/
MHz
------------------------------------------------------------------------
<=300...................................................... 3280
<=500...................................................... 2140
<=1000..................................................... 980
<=1500..................................................... 540
<=2000..................................................... 320
------------------------------------------------------------------------
(c) Mobile and portable stations are limited to 2 watts EIRP and
the equipment must employ a means for limiting power to the minimum
necessary for successful communications.
(d) Power measurements for transmissions by stations authorized
under this section may be made either in accordance with a Commission-
approved average power technique or in compliance with paragraph (e) of
this section. In both instances, equipment employed must be authorized
in accordance with the provisions of Sec. 24.51. In measuring
transmissions in this band using an average power technique, the peak-
to-average ratio (PAR) of the transmission may not exceed 13 dB.
(e) Peak transmit power must be measured over any interval of
continuous transmission using instrumentation calibrated in terms of an
rms-equivalent voltage. The measurement results shall be properly
adjusted for any instrument limitations, such as detector response
times, limited resolution bandwidth capability when compared to the
emission bandwidth, sensitivity, etc., so as to obtain a true peak
measurement for the emission in question over the full bandwidth of the
channel.
Note to Sec. 24.232: Height above average terrain (HAAT) is to
be calculated using the method set forth in Sec. 24.53 of this
part.
[73 FR 24183, May 2, 2008]
Sec. 27.50 Power and antenna height limits.
* * * * *
(d) The following power and antenna height requirements apply to
stations transmitting in the 1710-1755 MHz and 2110-2155 MHz bands:
(1) The power of each fixed or base station transmitting in the
2110-2155 MHz band and located in any county with population density of
100 or fewer persons per square mile, based upon the most recently
available population statistics from the Bureau of the Census, is
limited to:
(A) an equivalent isotropically radiated power (EIRP) of 3280 watts
when transmitting with an emission bandwidth of 1 MHz or less;
(B) an EIRP of 3280 watts/MHz when transmitting with an emission
bandwidth greater than 1 MHz.
(2) The power of each fixed or base station transmitting in the
2110-2155 MHz band and situated in any geographic location other than
that described in paragraph (d)(1) is limited to:
(A) an equivalent isotropically radiated power (EIRP) of 1640 watts
when transmitting with an emission bandwidth of 1 MHz or less;
(B) an EIRP of 1640 watts/MHz when transmitting with an emission
bandwidth greater than 1 MHz.
(3) A licensee operating a base or fixed station in the 2110-2155
MHz band utilizing a power greater than 1640 watts EIRP and greater
than 1640 watts/MHz EIRP must coordinate such operations in advance
with all Government and non-Government satellite entities in the 2025-
2110 MHz band. Operations with power greater than 1640 watts EIRP and
greater than 1640 watts/MHz EIRP must be coordinated in advance with
the following licensees authorized to operate within 120 kilometers (75
miles) of the base or fixed station operating in this band: all
Broadband Radio Service (BRS) licensees authorized under part 27 in the
2155-2160 MHz band and all advanced wireless services (AWS) licensees
authorized to operate on adjacent frequency blocks in the 2110-2155 MHz
band.
(4) Fixed, mobile, and portable (hand-held) stations operating in
the 1710-1755 MHz band are limited to 1 watt EIRP. Fixed stations
operating in this band are limited to a maximum antenna height of 10
meters above ground. Mobile and portable stations operating in this
band must employ a means for limiting power to the minimum necessary
for successful communications.
(5) Equipment employed must be authorized in accordance with the
provisions of Sec. 24.51. Power measurements for transmissions by
stations authorized under this section may be made either in accordance
with a Commission-approved average power technique or in compliance
with paragraph (d)(6) of this section. In measuring transmissions in
this band using an average power technique, the peak-to-average ratio
(PAR) of the transmission may not exceed 13 dB.
(6) Peak transmit power must be measured over any interval of
continuous transmission using
[[Page 43090]]
instrumentation calibrated in terms of an rms-equivalent voltage. The
measurement results shall be properly adjusted for any instrument
limitations, such as detector response times, limited resolution
bandwidth capability when compared to the emission bandwidth,
sensitivity, etc., so as to obtain a true peak measurement for the
emission in question over the full bandwidth of the channel.
* * * * *
[FR Doc. 2010-18233 Filed 7-22-10; 8:45 am]
BILLING CODE 1505-01-D