Goto Section: 74.708 | 74.710 | Table of Contents
FCC 74.709
Revised as of October 1, 2014
Goto Year:2013 |
2015
§ 74.709 Land mobile station protection.
(a) Stations in the Land Mobile Radio Service, using the following
channels in the indicated cities will be protected from interference
caused by low power TV or TV translator stations, and low power TV and
TV translator stations must accept any interference from stations in
the land mobile service operating on the following channels:
City Channels Coordinates
Latitude Longitude
Boston, MA 14, 16 42DEG21'24'' 071DEG03'24''
Chicago, IL 14, 15 41DEG52'28'' 087DEG38'22''
Cleveland, OH 14, 15 41DEG29'51'' 081DEG41'50''
Dallas, TX 16 32DEG47'09'' 096DEG47'37''
Detroit, MI 15, 16 42DEG19'48'' 083DEG02'57''
Houston, TX 17 29DEG45'26'' 095DEG21'37''
Los Angeles, CA 14, 16, 20 34DEG03'15'' 118DEG18'28''
Miami, FL 14 25DEG46'37'' 080DEG11'32''
New York, NY 14, 15, 16 40DEG45'06'' 073DEG59'39''
Philadelphia, PA 19, 20 39DEG56'58'' 075DEG09'21''
Pittsburgh, PA 14, 18 40DEG26'19'' 080DEG00'00''
San Francisco, CA 16, 17 37DEG46'39'' 122DEG24'40''
Washington, DC 17, 18 38DEG53'51'' 077DEG00'33''
(b) The protected contours for the land mobile radio service are 130
kilometers from the above coordinates, except where limited by the
following:
(1) If the land mobile channel is the same as the channel in the
following list, the land mobile protected contour excludes the area
within 145 kilometers of the corresponding coordinates from list below.
Except if the land mobile channel is 15 in New York or Cleveland or 16
in Detroit, the land mobile protected contour excludes the area within
95 kilometers of the corresponding coordinates from the list below.
(2) If the land mobile channel is one channel above or below the
channel in the following list, the land mobile protected contour
excludes the area within 95 kilometers of the corresponding coordinates
from the list below.
City Channel Coordinates
Latitude Longitude
San Diego, CA 15 32DEG41'48'' 116DEG56'10''
Waterbury, CT 20 41DEG31'02'' 073DEG01'00''
Washington, DC 14 38DEG57'17'' 077DEG00'17''
Washington, DC 20 38DEG57'49'' 077DEG06'18''
Champaign, IL 15 40DEG04'11'' 087DEG54'45''
Jacksonville, IL 14 39DEG45'52'' 090DEG30'29''
Ft. Wayne, IN 15 41DEG05'35'' 085DEG10'42''
South Bend, IN 16 41DEG36'20'' 086DEG12'44''
Salisbury, MD 16 38DEG24'15'' 075DEG34'45''
Mt. Pleasant, MI 14 43DEG34'24'' 084DEG46'21''
Hanover, NH 15 43DEG42'30'' 072DEG09'16''
Canton, OH 17 40DEG51'04'' 081DEG16'37''
Cleveland, OH 19 41DEG21'19'' 081DEG44'24''
Oxford, OH 14 39DEG30'26'' 084DEG44'09''
Zanesville, OH 18 39DEG55'42'' 081DEG59'06''
Elmira-Corning, NY 18 42DEG06'20'' 076DEG52'17''
Harrisburg, PA 21 40DEG20'44'' 076DEG52'09''
Johnstown, PA 19 40DEG19'47'' 078DEG53'45''
Lancaster, PA 15 40DEG15'45'' 076DEG27'49''
Philadelphia, PA 17 40DEG02'30'' 075DEG14'24''
Pittsburgh, PA 16 40DEG26'46'' 079DEG57'51''
Scranton, PA 16 41DEG10'58'' 075DEG52'21''
Parkersburg, WV 15 39DEG20'50'' 081DEG33'56''
Madison, WI 15 43DEG03'01'' 089DEG29'15''
(c) A low power TV or TV translator station application will not be
accepted if it specifies a site that is within the protected contour of
a co-channel or first adjacent channel land mobile assignment.
(d) The low power TV or TV translator station field strength is
calculated from the proposed effective radiated power (ERP) and the
antenna height above average terrain (HAAT) in pertinent directions.
(1) The field strength is calculated using Figure 10c of § 73.699
(F(50, 10) charts) of Part 73 of this chapter.
(2) A low power TV or TV translator station application will not be
accepted if it specifies the same channel as one of the land mobile
assignments and its field strength at the land mobile protected contour
exceeds 52 dBu.
(3) A low power TV or TV translator station application will not be
accepted if it specifies a channel that is one channel above or below
one of the land mobile assignments and its field strength at the land
mobile protected contour exceeds 76 dBu.
(e) To protect stations in the Offshore Radio Service, a low power TV
or TV translator station construction permit application will not be
accepted if it specifies operation on channels 15, 16, 17 or 18 in the
following areas. West Longitude and North Latitude are abbreviated as
W.L. and N.L. respectively.
(1) On Channel 15: west of 92DEG00' W.L.; east of 98DEG30' W.L.; and
south of a line extending due west from 30DEG30' N.L., 92DEG00' W.L. to
30DEG30' N.L., 96DEG00' W.L.; and then due southwest to 28DEG00' N.L.,
98DEG30' W.L.
(2) On Channel 16: west of 86DEG40' W.L.; east of 96DEG30' W.L.; and
south of a line extending due west from 31DEG00' N.L., 86DEG40' W.L. to
31DEG00' N.L., 95DEG00' W.L. and then due southwest to 29DEG30' N.L.,
96DEG30' W.L.
(3) On Channel 17: west of 86DEG30' W.L.; east of 96DEG00' W.L.; and
south of a line extending due west from 31DEG00' N.L., 86DEG30' W.L. to
31DEG30' N.L., 94DEG00' W.L. and then due southwest to 29DEG30' N.L.,
96DEG00' W.L.
(4) On Channel 18: west of 87DEG00' W.L.; east of 95DEG00' W.L.; and
south of 31DEG00' N.L.
[ 47 FR 21499 , May 18, 1982, as amended at 50 FR 12027 , Mar. 27, 1985;
50 FR 33942 , Aug. 22, 1985; 69 FR 31906 , June 8, 2004]
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Goto Section: 74.708 | 74.710
Goto Year: 2013 |
2015
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