Goto Section: 24.229 | 24.235 | Table of Contents
FCC 24.232
Revised as of October 1, 2011
Goto Year:2010 |
2012
§ 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 § § 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
HAAT in meters Maximum EIRP watts
<=300 1640
<=500 1070
<=1000 490
<=1500 270
<=2000 160
Table 2--Reduced Power for Base Station Antenna Heights Over 300
Meters, With Emission Bandwidth Greater Than 1 MHz
HAAT in meters Maximum 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 § § 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
HAAT in meters Maximum 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
HAAT in meters Maximum 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 § 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 § 24.232: Height above average terrain (HAAT) is to be
calculated using the method set forth in § 24.53 of this part.
[ 73 FR 24183 , May 2, 2008]
Goto Section: 24.229 | 24.235
Goto Year: 2010 |
2012
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