47 C.F.R. Subpart P—Operational Fixed Stations
Title 47 - Telecommunication
An operational fixed station provides control, repeater or relay functions for its associated aeronautical station. An applicant for an operational fixed station must certify that: (a) The applicant is the licensee of an aeronautical land station in the aeronautical mobile service; and (b) Common carrier facilities are not available to satisfy the aeronautical station's requirements. [53 FR 28940, Aug. 1, 1988, as amended at 63 FR 68958, Dec. 14, 1998] The following frequencies in the 72–76 MHz band are assignable to operational fixed stations using vertical polarization, if no harmful interference is caused to TV reception on Channels 4 and 5. These frequencies are shared with the Land Mobile and the Maritime Mobile Services.
Operational frequencies in the 72–76 MHz band Carrier frequency in MHz Operational fixed stations are subject to the following licensing limitations: (a) A maximum of four frequencies will be assigned. (b) Stations will not be authorized when applications indicate less than 16 km (10 miles) separation between a proposed station and a TV transmitter operating on either Channel 4 or 5, or from the post office of a community in which either channel is assigned but not in operation. (c) Stations located between 16 km (10 miles) and 128 km (80 miles) of a TV transmitter operating on either Channel 4 or 5, or from the post office of a community in which either channel is assigned but not in operation, are secondary to TV operations within the Grade B service contour.1 1 OET Bulletin No. 67, March 1988, entitled “Potential Interference from Operational Fixed Stations in the 72–76 MHz Band to Television Channels 4 and 5” describes an analytical model that can be used to calculate the potential interference that might result from a given fixed station operation. Copies of the bulletin may be obtained from the Commission's current duplication contractor. Information concerning the current duplication contractor may be obtained from the Office of Public Affairs, Consumer Assistance and Small Business Division, Telephone (202) 632–5050.
Title 47: Telecommunication
PART 87—AVIATION SERVICES
Subpart P—Operational Fixed Stations
§ 87.445 Scope of service.
§ 87.447 Supplemental eligibility.
§ 87.449 Frequencies.
72.04
72.06
72.08
72.10
72.12
72.14
72.16
72.18
72.20
72.22
72.24
72.26
72.28
72.30
72.32
72.34
72.36
72.38
72.40
72.42
72.46
72.50
72.54
72.58
72.62
72.64
72.66
72.68
72.70
72.72
72.74
72.76
72.78
72.80
72.82
72.84
72.86
72.88
72.90
72.92
72.94
72.96
72.98
75.42
75.46
75.50
75.54
75.58
75.62
75.64
75.66
75.68
75.70
75.72
75.74
75.76
75.78
75.80
75.82
75.84
75.86
75.88
75.90
75.92
75.94
75.96
75.98§ 87.451 Licensing limitations.
