[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