Goto Section: 22.657 | 22.701 | Table of Contents
FCC 22.659
Revised as of
Goto Year:1996 |
1998
Sec. 22.659 Effective radiated power limits.
The purpose of the rules in this section, which limit effective
radiated power (ERP), is to reduce the likelihood that interference to
television reception from public mobile operations on these channels
will occur. The protected TV station locations specified in this section
are the locations of record as of September 1974, and these do not
change even though the TV stations may have been subsequently relocated.
(a) Maximum ERP. The ERP of base transmitters must not exceed 100
Watts under any circumstances. The ERP of mobile transmitters must not
exceed 60 Watts under any circumstances.
(b) Co-channel protection from base transmitters. The ERP of base
transmitters in the New York-Northeastern New Jersey urban area must not
exceed the limits in the tables referenced in paragraphs (b)(2) and
(b)(3) of this section. The limits depend upon the height above average
terrain of the base transmitter antenna and the distance between the
base transmitter and the nearest protected TV station location in
paragraph (b)(1) of this section.
(1) The protected TV station locations are as follows:
------------------------------------------------------------------------
Base transmitter frequency range Protected TV station location
------------------------------------------------------------------------
470-476 MHz............................ Washington, DC 38 deg.57'17' 77
deg.00'17'.
476-482 MHz............................ Lancaster, PA 40 deg.15'45'' 76
deg.27'49'.
------------------------------------------------------------------------
(2) Tables E-8 and E-9 of this section apply to base transmitters in
the New York-Northeastern New Jersey urban area that transmit on
channels in the 476-482 MHz range.
(3) Tables E-10 and E-11 of this section apply to base transmitters
in the New York-Northeastern New Jersey urban area that transmit on
channels in the 470-476 MHz range.
(c) Adjacent channel protection from base transmitters. The ERP of
base transmitters must not exceed the limits in Table E-12 of this
section. The limits depend upon the height above average terrain of the
base transmitter antenna and the distance between the base transmitter
and the nearest protected TV station location specified in paragraph
(c)(1) of this section.
(1) The protected TV station locations are as follows:
------------------------------------------------------------------------
Protected TV station TV
Base transmitter frequency range location channel
------------------------------------------------------------------------
470-476 MHz....................... Hanover, NH 43 deg.42'30' (15)
72 deg.09'16'.
Lancaster, PA 40 (15)
deg.15'45' 76 deg.27'49'.
476-482 MHz....................... Scranton, PA 41 deg.10'58' (16)
75 deg.52'21'.
482-488 MHz....................... Hanover, NH 43 deg.42'30' (15)
72 deg.09'16'.
------------------------------------------------------------------------
(2) Table E-12 of this section applies to base transmitters in the
New York-Northeastern New Jersey urban area.
Table E-8.--Maximum ERP (Watts) for Base Transmitters (HAAT 152 Meters or Less)
----------------------------------------------------------------------------------------------------------------------------
----------------------------
Antenna height above average terrain in me
ters (feet)
-------------------------------------------------------------
----------------------------
Distance to protected TV station in kilometers (miles) 15 30 46 61 76 91 107
122 137 152
(50) (100) (150) (200) (250) (300) (350)
(400) (450) (500)
----------------------------------------------------------------------------------------------------------------------------
----------------------------
209 (130)..................................................... 1000 1000 1000 1000 1000 1000 100
0 1000 1000 1000
201 (125)..................................................... 1000 1000 1000 1000 1000 1000 100
0 850 750 725
193 (120)..................................................... 1000 1000 1000 1000 900 750 67
5 600 550 500
185 (115)..................................................... 1000 1000 800 725 600 525 47
5 425 375 350
177 (110)..................................................... 850 700 600 500 425 375 32
5 300 275 225
169 (105)..................................................... 600 475 400 325 275 250 22
5 200 175 150
161 (100)..................................................... 400 325 275 225 175 150 14
0 125 110 100
153 (95)...................................................... 275 225 175 125 110 95 8
0 70 60 50
[[Page 171]]
145 (90)...................................................... 175 125 100 75 50 ....... ......
. ....... ....... .......
----------------------------------------------------------------------------------------------------------------------------
----------------------------
See Sec. 22.659(b)(2). This table is for antenna heights of 152 meters (500 feet) or less above average terrain. For antenn
a heights between those in
the table, use the next higher antenna height. For distances between those in the table, use the next lower distance.
Table E-9.--Maximum ERP (Watts) for Base Transmitters (HAAT More Than 152 Meters)
----------------------------------------------------------------------------------------------------------------
Antenna height above average terrain in meters
(feet)
Distance to protected TV station in kilometers (miles) -----------------------------------------------------
152 305 457 610 762 914
(500) (1000) (1500) (2000) (2500) (3000)
----------------------------------------------------------------------------------------------------------------
209 (130)................................................. 1000 447 219 117 71 46
193 (120)................................................. 500 209 95 50 30 19
177 (110)................................................. 225 91 35 19 11 8
161 (100)................................................. 100 30 10 5 3 2
153 (95).................................................. 50 13 5 3 2 1
----------------------------------------------------------------------------------------------------------------
See Sec. 22.659(b)(2). This table is for antenna heights of more than 152 meters (500 feet) above average
terrain. For intermediate values of height and/or distance, use linear interpolation to obtain the maximum
permitted ERP.
Table E-10.--Maximum ERP (Watts) for Base Transmitters (HAAT 152 Meters or less)
----------------------------------------------------------------------------------------------------------------------------
----------------------------
Antenna height above average terrain in me
ters (feet)
-------------------------------------------------------------
----------------------------
Distance to protected TV station in kilometers (miles) 15 30 46 61 76 91 107
122 137 152
(50) (100) (150) (200) (250) (300) (350)
(400) (450) (500)
----------------------------------------------------------------------------------------------------------------------------
----------------------------
261 (162)..................................................... 1000 1000 1000 1000 1000 1000 100
0 1000 1000 1000
257 (160)..................................................... 1000 1000 1000 1000 1000 1000 100
0 1000 1000 800
249 (155)..................................................... 1000 1000 1000 1000 1000 875 77
5 700 625 575
241 (150)..................................................... 1000 1000 950 775 725 625 55
0 500 450 400
233 (145)..................................................... 850 750 650 575 500 440 40
0 350 320 300
225 (140)..................................................... 600 575 465 400 350 300 27
5 250 230 225
217 (135)..................................................... 450 400 335 300 255 240 20
0 185 165 150
209 (130)..................................................... 350 300 245 200 185 160 14
5 125 120 100
201 (125)..................................................... 225 200 170 150 125 110 10
0 90 80 75
193 (120)..................................................... 175 150 125 105 90 80 7
0 60 55 50
----------------------------------------------------------------------------------------------------------------------------
----------------------------
See Sec. 22.659(b)(3). This table applies for antenna heights of 152 meters (500 feet) or less above average terrain. For a
ntenna heights between those
in the table, use the next higher antenna height. For distances between those in the table, use the next lower distance.
Table E-11.--Maximum ERP (Watts) for Base Transmitters (HAAT More Than 152 Meters)
----------------------------------------------------------------------------------------------------------------
Antenna height above average terrain in meters
(feet)
Distance to protected TV station in kilometers (miles) -----------------------------------------------------
152 305 457 610 762 914
(500) (1000) (1500) (2000) (2500) (3000)
----------------------------------------------------------------------------------------------------------------
261 (162)................................................. 1000 501 282 170 110 71
241 (150)................................................. 400 209 110 60 36 23
225 (140)................................................. 225 102 50 28 16 10
209 (130)................................................. 100 48 21 11 7 5
193 (120)................................................. 50 19 9 5 3 2
----------------------------------------------------------------------------------------------------------------
See Sec. 22.659(b)(3). This table is for antenna heights of more than 152 meters (500 feet) above average
terrain. For intermediate values of height and/or distance, use linear interpolation to obtain the maximum
permitted ERP.
Table E-12.--Maximum ERP (Watts) for Base Transmitters
----------------------------------------------------------------------------------------------------------------
Antenna height above average terrain in meters (feet)
Distance to protected TV --------------------------------------------------------------------------------
station in kilometers (miles) 30 46 61 76 91 107 122 137 152
(100) (150) (200) (250) (300) (350) (400) (450) (500)
----------------------------------------------------------------------------------------------------------------
108 (67)....................... 1000 1000 1000 1000 1000 1000 1000 1000 1000
106 (66)....................... 1000 1000 1000 1000 1000 1000 1000 1000 750
105 (65)....................... 1000 1000 1000 1000 1000 1000 825 650 600
103 (64)....................... 1000 1000 1000 1000 1000 775 625 500 400
101 (63)....................... 1000 1000 1000 1000 440 400 350 320 300
[[Page 172]]
100 (62)....................... 1000 1000 1000 525 375 250 200 150 125
98 (61)........................ 1000 700 450 250 200 125 100 75 50
97 (60)........................ 1000 425 225 125 100 75 50 ....... .......
----------------------------------------------------------------------------------------------------------------
See Sec. 22.659(c)(2). This table applies to base transmitters in the New York-Northeastern New Jersey urban
areas. This table is for antenna heights of 152 meters (500 feet) or less above average terrain. For antenna
heights between those in the table, use the next higher antenna height. For distances between those in the
table, use the next lower distance.
Subpart F--Rural Radiotelephone Service
Goto Section: 22.657 | 22.701
Goto Year: 1996 |
1998
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