Goto Section: 22.657 | 22.701 | Table of Contents

FCC 22.659
Revised as of October 1, 2005
Goto Year:2004 | 2006
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 (all coordinates are
   referenced to North American Datum 1983 (NAD83)):


------------------------------------------------------------------------
  Control transmitter frequency range     Protected TV station location
------------------------------------------------------------------------
470-476 MHz............................  Washington, DC,
                                          38 °57[min]17.4[sec] N.
                                          Lat. 77 °00[min]15.9[sec]
                                          W. Long.
476-482 MHz............................  Lancaster, PA,
                                          40 °15[min]45.3[sec] N.
                                          Lat. 76 °27[min]47.9[sec]
                                          W. Long.
------------------------------------------------------------------------

   (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 (all coordinates are
   referenced to North American Datum 1983 (NAD83)):


------------------------------------------------------------------------
  Control transmitter frequency      Protected TV station
              range                        location           TV channel
------------------------------------------------------------------------
470-476 MHz......................  Hanover, NH,                     (15)
                                    43 °42[min]30.3[sec]
                                    N. Lat.
                                    72 °09[min]14.3[sec]
                                    W. Long.
476-482 MHz......................  Lancaster, PA,                   (15)
482-488 MHz......................   40 °15[min]45.3[sec]
                                    N. Lat.
                                    76 °27[min]47.9[sec]
                                    W. Long.
                                   Scranton, PA,                    (16)
                                    41 °10[min]58.3[sec]
                                    N. Lat.
                                    75 °52[min]19.7[sec]
                                    W. Long.
                                   Hanover, NH,                     (15)
                                    43 °42[min]30.3[sec]
                                    N. Lat.
                                    72 °09[min]14.3[sec]
                                    W. Long.
------------------------------------------------------------------------
Note: Coordinates are referenced to North American Datum 1983 (NAD83).

   (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 Tr
ansmitters (HAAT 152 Meters or Less)
-------------------------------------------------------------------------------
-------------------------------------------------------------------------

   Antenna height above average terrain in meters (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     100
0     1000     1000     1000     1000     1000     1000     1000     1000
201 (125).....................................................     1000     100
0     1000     1000     1000     1000     1000      850      750      725
193 (120).....................................................     1000     100
0     1000     1000      900      750      675      600      550      500
185 (115).....................................................     1000     100
0      800      725      600      525      475      425      375      350
177 (110).....................................................      850      70
0      600      500      425      375      325      300      275      225
169 (105).....................................................      600      47
5      400      325      275      250      225      200      175      150
161 (100).....................................................      400      32
5      275      225      175      150      140      125      110      100
153 (95)......................................................      275      22
5      175      125      110       95       80       70       60       50
145 (90)......................................................      175      12
5      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 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.

                 Table E-9_Maximum ERP (Watts) for Base Transmitters (HAAT More
 Than 152 Meters)
-------------------------------------------------------------------------------
---------------------------------
                                                               Antenna height a
bove 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 interp
olation to obtain the maximum
  permitted ERP.

                                     Table E-10_Maximum ERP (Watts) for Base Tr
ansmitters (HAAT 152 Meters or Less)
-------------------------------------------------------------------------------
-------------------------------------------------------------------------

   Antenna height above average terrain in meters (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     100
0     1000     1000     1000     1000     1000     1000     1000     1000
257 (160).....................................................     1000     100
0     1000     1000     1000     1000     1000     1000     1000      800
249 (155).....................................................     1000     100
0     1000     1000     1000      875      775      700      625      575
241 (150).....................................................     1000     100
0      950      775      725      625      550      500      450      400
233 (145).....................................................      850      75
0      650      575      500      440      400      350      320      300
225 (140).....................................................      600      57
5      465      400      350      300      275      250      230      225
217 (135).....................................................      450      40
0      335      300      255      240      200      185      165      150
209 (130).....................................................      350      30
0      245      200      185      160      145      125      120      100
201 (125).....................................................      225      20
0      170      150      125      110      100       90       80       75
193 (120).....................................................      175      15
0      125      105       90       80       70       60       55       50
-------------------------------------------------------------------------------
-------------------------------------------------------------------------
See  Sec.  22.659(b)(3). This table applies for antenna heights of 152 meters (500 f
eet) 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.

                Table E-11_Maximum ERP (Watts) for Base Transmitters (HAAT More
 Than 152 Meters)
-------------------------------------------------------------------------------
---------------------------------
                                                               Antenna height a
bove 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 interp
olation to obtain the maximum
  permitted ERP.

                              Table E-12_Maximum ERP (Watts) for Base Transmitt
ers
-------------------------------------------------------------------------------
---------------------------------
                                              Antenna height above average terr
ain 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
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-Nor
theastern New Jersey urban
  areas. This table is for antenna heights of 152 meters (500 feet) or less abo
ve average terrain. For antenna
  heights between those in the table, use the next higher antenna height. For d
istances between those in the
  table, use the next lower distance.

   [ 59 FR 59507 , Nov. 17, 1994, as amended at  63 FR 68947 , Dec. 14, 1998]

Subpart F—Rural Radiotelephone Service


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Goto Year: 2004 | 2006
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