Title 47, Part 73 — Radio Broadcast Services

Scope.

AM broadcast definitions.

Classes of AM broadcast channels and stations.

AM broadcast station applications affected by international agreements.

Broadcast facilities; showing required.

Clear channels; Class A, Class B and Class D stations.

Regional channels; Class B and Class D stations.

Local channels; Class C stations.

Assignment of stations to channels.

Class C stations on regional channels.

Petition for authorization of an allotment in the 1605-1705 kHz band.

Rounding of nominal power specified on applications.

Antenna systems; showing required.

Calculation of improvement factors.

Applications for broadcast facilities, showing required.

AM transmission system emission limitations.

AM antenna systems.

AM transmission system fencing requirements.

Determining operating power.

Requirements for authorization of antenna monitors.

Antenna resistance and reactance measurements.

Remote reading antenna and common point ammeters.

AM directional antenna field strength measurements.

Directional antenna system operation and tolerances.

Sampling systems for antenna monitors.

Antenna monitors.

Operating during the experimental period.

Blanketing interference.

Presunrise service authorization (PSRA) and postsunset service authorization (PSSA).

Use of multiplex transmission.

AM stereophonic broadcasting.

Territorial exclusivity.

Directional antenna systems.

Field strength measurements to establish performance of directional antennas.

Modification of directional antenna data.

Field strength measurements in support of applications or evidence at hearings.

AM directional antenna partial proof of performance measurements.

Directional antenna performance recertification.

Antenna testing during daytime.

Directional antenna monitoring points.

Vertical plane radiation characteristics, f(θ).

Engineering standards of allocation.

Groundwave signals.

Groundwave field strength graphs.

Computation of interfering signal.

Establishment of effective field at one kilometer.

Limitation on daytime radiation.

Minimum antenna heights or field strength requirements.

Engineering charts and related formulas.

Numerical designation of FM broadcast channels.

Table of Allotments.

Availability of channels.

International agreements and other restrictions on use of channels.

Zones.

Minimum distance separation between stations.

Reference points and distance computations.

Protection from interference.

Station classes.

Power and antenna height requirements.

Administrative changes in authorizations.

Grandfathered short-spaced stations.

Contour protection for short-spaced assignments.

Restrictions on use of channels.

Territorial exclusivity.

Determining operating power.

Permissible transmissions.

Use of FM multiplex subcarriers.

FM subsidiary communications services.

FM technical definitions.

Field strength contours.

Topographic data.

Prediction of coverage.

Field strength measurements.

FM transmitter location.

FM antenna systems.

FM transmission system requirements.

FM blanketing interference.

FM multiplex subcarrier technical standards.

FM stereophonic sound transmission standards.

Engineering charts.

Scope.

Definitions.

Digital audio broadcasting service requirements.

IBOC DAB operation.

Notification.

Channels available for assignment.

Licensing requirements and service.

Channel assignments in the Mexican border area.

Zones.

Classes of noncommercial educational FM stations and channels.

Minimum distance separations between stations.

Standards of good engineering practice.

Prohibited overlap.

Antenna systems.

Power and antenna height requirements.

Special procedures applicable to Class D noncommercial educational stations.

Noncommercial educational FM stations operating on unreserved channels.

Protection from interference.

NCE FM transmitter location.

TV Channel 6 protection.

Operating schedule; time sharing.

Determining operating power.

Subsidiary communications services.

NCE-FM engineering charts.

Scope of subpart.

Cross reference to rules in other parts.

Numerical designation of television channels.

Table of allotments.

Zones.

Emission levels and mask filter.

Protection from interference.

[Reserved]

Power and antenna height requirements.

References to TV station interference protection methodology.

Interference protection of other services.

Antenna location and principal community coverage.

Contours and service areas.

Interference calculation and protection of TV broadcast services.

Noncommercial educational TV stations.

Digital television table of allotments.

TV application processing.

Television broadcast stations.

TV antenna system.

TV distributed transmission systems.

Affiliation agreements and network program practices; territorial exclusivity in non-network program arrangements.

§§ 73.659-73.663 [Reserved]

Determining operating power.

Commercial limits in children's programs.

Educational and informational programming for children.

[Reserved]

Public information initiatives regarding educational and informational programming for children.

Definitions.

TV transmission standards.

Presumptive determination of field strength at individual locations.

Field strength measurements.

Transmission system requirements.

TV engineering charts.

Definitions.

Assignment and use of frequencies.

Geographical zones and areas of reception.

Equipment tests.

Program tests.

Licensing requirements.

Authorizations.

Normal license period.

Operating power.

Antenna systems.

Frequency monitors.

Modulation monitors.

System specifications for double-sideband (DBS) modulated emissions in the HF broadcasting service.

System specifications for single-sideband (SSB) modulated emissions in the HF broadcasting service.

System specifications for digitally modulated emissions in the HF broadcasting service.

Auxiliary transmitters.

Modification of transmission systems.

Time of operation.

[Reserved]

Logs.

Retention of logs.

Station identification.

Service; commercial or sponsored programs.

Broadcast regulations applicable to LPFM stations.

Availability of channels.

Minimum distance separation between stations.

Distance computations.

Interference protection to full service FM stations.

Third adjacent channel interference.

LPFM power and antenna height requirements.

Rounding of power and antenna heights.

Determination of antenna height above average terrain (HAAT).

Antennas.

Protection to reception of TV channel 6.

Interference to the input signals of FM translator or FM booster stations.

Operating power and mode tolerances.

Transmission system operation.

Operating schedule.

Licensing requirements and service.

Unlicensed radio operations.

Ownership limits.

Attribution of LPFM station interests.

Cross-ownership.

Assignment and transfer of LPFM permits and licenses.

Processing of LPFM broadcast station applications.

Amendment of LPFM broadcast station applications.

Selection procedure for mutually exclusive LPFM applications.

LPFM license period.

Modification of transmission systems.

Station logs for LPFM stations.

Station inspections by FCC; availability to FCC of station logs and records.

Signal retransmission.

Equal employment opportunities.

Scope.

Cross reference to rules in other parts.

Truthful written statements and responses to Commission inquiries and correspondence.

Station license period.

Notifications concerning interference to radio astronomy, research and receiving installations.

Station location.

Station telephone number.

Transferring a station.

Station identification.

[Reserved]

Broadcast of telephone conversations.

Rebroadcasts.

Broadcast of taped, filmed, or recorded material.

References to time.

TV/FM dual-language broadcasting in Puerto Rico.

Broadcast of lottery information.

Sponsorship identification; list retention; related requirements.

Antenna structure, marking and lighting.

Specifications for indicating instruments.

Licensee-conducted contests.

Broadcast hoaxes.

Station inspections by FCC.

Availability to FCC of station logs and records.

Broadcasting emergency information.

Unattended station operation.

Transmission system operation.

Transmission system monitoring and control.

Special field test authorizations.

Operation for tests and maintenance.

Portable test stations [Definition].

Carrier frequency measurements.

Carrier frequency departure tolerances.

Operating power and mode tolerances.

Modulation levels: AM and FM.

Transmission system inspections.

Equipment performance measurements.

Equipment tests.

Operation during modification of facilities.

Program tests.

Special temporary authorizations (STA).

International agreements.

Acceptability of broadcast transmitters.

Main transmitters.

Auxiliary transmitters.

Auxiliary antennas.

Emergency antennas.

Modification of transmission systems.

[Reserved]

Broadcast day.

Time of operation.

Share time.

Daytime.

Limited time.

Specified hours.

AM station operation pre-sunrise and post-sunset.

Minimum operating schedule.

Unauthorized operation.

Discontinuance of operation.

General requirements related to the station log.

Station log.

Special technical records.

Retention of logs.

Chief operators.

Legally qualified candidates for public office.

Equal opportunities.

Candidate rates.

Political file.

Reasonable access.

Equal employment opportunities (EEO).

Ban on discrimination in broadcast transactions.

Application and report forms.

Applications required.

Where to file; number of copies.

Signing of applications.

Content of applications.

Specification of facilities.

Contingent applications.

Inconsistent or conflicting applications.

Repetitious applications.

Multiple applications.

Mutually exclusive applications for low power television and television translator stations.

Amendment of applications.

Agreements for removing application conflicts.

Online public inspection file of commercial stations.

Online public inspection file of noncommercial educational stations.

Application for construction permit or modification of construction permit.

[Reserved]

Application for license to cover construction permit.

Application for license to use former main antenna as an auxiliary.

Application to make changes in an existing station.

Application for renewal of license.

Application for voluntary assignment or transfer of control.

Application for involuntary assignment of license or transfer of control.

Application for emergency authorization.

Application to obtain a modified station license.

Application for permit to deliver programs to foreign stations.

Requests for extension of time to operate without required monitors, indicating instruments, and EAS encoders and decoders.

Requests for new or modified call sign assignments.

Multiple ownership.

Sponsorship identification; list retention; related requirements.

Staff consideration of applications requiring Commission action.

Staff consideration of applications not requiring action by the Commission.

Acceptance of applications.

Defective applications.

Dismissal of applications.

Processing of AM broadcast station applications.

Processing of TV broadcast, Class A TV broadcast, low power TV, and TV translators applications.

Processing FM broadcast station applications.

Processing of international broadcast station applications.

Amendments to applications for renewal, assignment or transfer of control.

Local public notice of filing of broadcast applications.

Procedure for filing petitions to deny.

Procedure for filing informal objections.

Dismissal of petitions to deny or withdrawal of informal objections.

Threats to file petitions to deny or informal objections.

Grants without hearing.

Conditional grant.

Designation for hearing.

Local public notice of designation for hearing.

Procedures on transfer and assignment applications.

Period of construction.

Simultaneous modification and renewal of license.

Special waiver procedure relative to applications.

Retention of applications in hearing status after designation for hearing.

Annual employment report.

Availability to FCC of station contracts.

Ownership reports.

Information available on the internet.

Post-incentive auction licensing and operation.

Reimbursement under the Reimbursement Expansion Act.

Full power television channel sharing outside the incentive auction.

Full power television simulcasting during the ATSC 3.0 (Next Gen TV) transition.

Enforcement of 18 U.S.C. 1464 (restrictions on the transmission of obscene and indecent material).

Services subject to competitive bidding.

[Reserved]

Application and certification procedures; return of mutually exclusive applications not subject to competitive bidding procedures; prohibition of collusion.

Submission of full payments.

[Reserved]

Filing of long-form applications.

Filing of petitions to deny against long-form applications.

Designated entity provisions.

Definitions applicable for designated entity provisions.

Assignment or transfer of control.

Definitions.

Eligibility and service requirements.

Licensing requirements.

§§ 73.6003-73.6005 [Reserved]

Channel assignments.

Power limitations.

Distance computations.

Class A TV station protected contour.

Class A TV station protection of Class A TV stations.

Class A TV station protection of TV stations.

Class A TV station protection of low power TV and TV translator stations.

Protection of stations in the land mobile radio service.

Negotiated interference and relocation agreements.

Distributed transmission systems.

Transmission standards and system requirements.

Antenna system and station location.

Broadcast regulations applicable to Class A television stations.

Class A television channel sharing outside the incentive auction.

Class A television simulcasting during the ATSC 3.0 (Next Gen TV) transition.

Low Power Protection Act.

Definition of terms (as used in subpart K only).

Services subject to evaluation by point system.

Fair distribution of service on reserved band FM channels.

Point system selection procedures.

Petitions to deny tentative selectee(s).

Maintenance of comparative qualifications.

Incorporation by reference.