Goto Section: 22.725 | 22.731 | Table of Contents
FCC 22.727
Revised as of October 1, 2010
Goto Year:2009 |
2011
§ 22.727 Power limits for conventional rural radiotelephone transmitters.
The transmitting power of transmitters operating on the channels listed
in § 22.725 must not exceed the limits in this section.
(a) Maximum ERP. The effective radiated power (ERP) of central office
and rural subscriber station transmitters must not exceed the
applicable limits in this paragraph under any circumstances.
Frequency range (MHz) Maximum ERP (watts)
152-153 1400
157-159 150
454-455 3500
459-460 150
(b) Basic power limit. Except as provided in paragraph (d) of this
section, the ERP of central office station transmitters must not exceed
500 Watts.
(c) Height-power limits. Except as provided in paragraph (d) of this
section, the ERP of central office station transmitters must not exceed
the amount that would result in an average distance to the "service
contour" of 41.6 kilometers (26 miles) for VHF channels or 30.7
kilometers (19 miles) for UHF channels. The average distance to the
"service contour" is calculated by taking the arithmetic mean of the
distances determined using the procedures specified in § 22.567 for the
eight cardinal radial directions, excluding cardinal radial directions
for which 90% or more of the distance so calculated is over water.
(d) Encompassed interfering contour areas. Central office station
transmitters are exempt from the basic power and height-power limits of
this section if the area within their interfering contours is totally
encompassed by the interfering contours of operating co-channel central
office station transmitters controlled by the same licensee. For the
purpose of this paragraph, operating transmitters are authorized
transmitters that are providing service to subscribers.
(e) Adjacent channel protection. The ERP of central office station
transmitters must not exceed 500 Watts if they transmit on channel
454.025 MHz and are located less than 7 kilometers (4.3 miles) from any
Private Radio Services station receiving on adjacent channel 454.000
MHz.
[ 59 FR 59507 , Nov. 17, 1994, as amended at 70 FR 19309 , Apr. 13, 2005]
Goto Section: 22.725 | 22.731
Goto Year: 2009 |
2011
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