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Title 47--Telecommunication
CHAPTER I--FEDERAL COMMUNICATIONS
COMMISSION
PART 73--RADIO BROADCAST SERVICES
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 | 73.1 | Scope. |
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| 73.14 | AM broadcast definitions. |
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| 73.21 | Classes of AM broadcast channels and stations. |
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| 73.23 | AM broadcast station applications affected by international agreements. |
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| 73.24 | Broadcast facilities; showing required. |
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| 73.25 | Clear channels; Class A, Class B and Class D stations. |
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| 73.26 | Regional channels; Class B and Class D stations. |
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| 73.27 | Local channels; Class C stations. |
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| 73.28 | Assignment of stations to channels. |
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| 73.29 | Class C stations on regional channels. |
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| 73.30 | Petition for authorization of an allotment in the 1605-1705 kHz band. |
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| 73.31 | Rounding of nominal power specified on applications. |
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| 73.33 | Antenna systems; showing required. |
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| 73.35 | Calculation of improvement factors. |
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| 73.37 | Applications for broadcast facilities, showing required. |
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| 73.44 | AM transmission system emission limitations. |
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| 73.45 | AM antenna systems. |
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| 73.49 | AM transmission system fencing requirements. |
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| 73.51 | Determining operating power. |
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| 73.53 | Requirements for authorization of antenna monitors. |
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| 73.54 | Antenna resistance and reactance measurements. |
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| 73.57 | Remote reading antenna and common point ammeters. |
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| 73.58 | Indicating instruments. |
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| 73.61 | AM directional antenna field strength measurements. |
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| 73.62 | Directional antenna system tolerances. |
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| 73.68 | Sampling systems for antenna monitors. |
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| 73.69 | Antenna monitors. |
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| 73.72 | Operating during the experimental period. |
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| 73.88 | Blanketing interference. |
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| 73.99 | Presunrise service authorization (PSRA) and postsunset service authorization (PSSA). |
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| 73.127 | Use of multiplex transmission. |
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| 73.128 | AM stereophonic broadcasting. |
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| 73.132 | Territorial exclusivity. |
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| 73.150 | Directional antenna systems. |
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| 73.151 | Field strength measurements to establish performance of directional antennas. |
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| 73.152 | Modification of directional antenna data. |
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| 73.153 | Field strength measurements in support of applications or evidence at hearings. |
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| 73.154 | AM directional antenna partial proof of performance measurements. |
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| 73.157 | Antenna testing during daytime. |
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| 73.158 | Directional antenna monitoring points. |
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| 73.160 | Vertical plane radiation characteristics, f(&thetas;). |
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| 73.182 | Engineering standards of allocation. |
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| 73.183 | Groundwave signals. |
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| 73.184 | Groundwave field strength graphs. |
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| 73.185 | Computation of interfering signal. |
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| 73.186 | Establishment of effective field at one kilometer. |
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| 73.187 | Limitation on daytime radiation. |
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| 73.189 | Minimum antenna heights or field strength requirements. |
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| 73.190 | Engineering charts and related formulas. |
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| 73.201 | Numerical designation of FM broadcast channels. |
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| 73.202 | Table of Allotments. |
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| 73.203 | Availability of channels. |
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| 73.204 | International agreements and other restrictions on use of channels. |
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| 73.205 | Zones. |
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| 73.207 | Minimum distance separation between stations. |
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| 73.208 | Reference points and distance computations. |
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| 73.209 | Protection from interference. |
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| 73.210 | Station classes. |
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| 73.211 | Power and antenna height requirements. |
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| 73.212 | Administrative changes in authorizations. |
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| 73.213 | Grandfathered short-spaced stations. |
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| 73.215 | Contour protection for short-spaced assignments. |
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| 73.220 | Restrictions on use of channels. |
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| 73.232 | Territorial exclusivity. |
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| 73.239 | Use of common antenna site. |
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| 73.258 | Indicating instruments. |
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| 73.267 | Determining operating power. |
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| 73.277 | Permissible transmissions. |
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| 73.293 | Use of FM multiplex subcarriers. |
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| 73.295 | FM subsidiary communications services. |
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| 73.297 | FM stereophonic sound broadcasting. |
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| 73.310 | FM technical definitions. |
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| 73.311 | Field strength contours. |
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| 73.312 | Topographic data. |
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| 73.313 | Prediction of coverage. |
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| 73.314 | Field strength measurements. |
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| 73.315 | FM transmitter location. |
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| 73.316 | FM antenna systems. |
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| 73.317 | FM transmission system requirements. |
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| 73.318 | FM blanketing interference. |
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| 73.319 | FM multiplex subcarrier technical standards. |
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| 73.322 | FM stereophonic sound transmission standards. |
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| 73.333 | Engineering charts. |
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| 73.501 | Channels available for assignment. |
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| 73.503 | Licensing requirements and service. |
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| 73.504 | Channel assignments in the Mexican border area. |
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| 73.505 | Zones. |
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| 73.506 | Classes of noncommercial educational FM stations and channels. |
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| 73.507 | Minimum distance separations between stations. |
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| 73.508 | Standards of good engineering practice. |
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| 73.509 | Prohibited overlap. |
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| 73.510 | Antenna systems. |
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| 73.511 | Power and antenna height requirements. |
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| 73.512 | Special procedures applicable to Class D noncommercial educational stations. |
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| 73.513 | Noncommercial educational FM stations operating on unreserved channels. |
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| 73.514 | Protection from interference. |
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| 73.515 | NCE FM transmitter location. |
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| 73.525 | TV Channel 6 protection. |
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| 73.558 | Indicating instruments. |
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| 73.561 | Operating schedule; time sharing. |
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| 73.567 | Determining operating power. |
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| 73.593 | Subsidiary communications services. |
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| 73.597 | FM stereophonic sound broadcasting. |
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| 73.599 | NCE-FM engineering charts. |
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| 73.601 | Scope of subpart. |
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| 73.602 | Cross reference to rules in other parts. |
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| 73.603 | Numerical designation of television channels. |
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| 73.606 | Table of allotments. |
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| 73.607 | Availability of channels. |
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| 73.609 | Zones. |
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| 73.610 | Minimum distance separations between stations. |
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| 73.611 | Reference points and distance computations. |
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| 73.612 | Protection from interference. |
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| 73.613 | Protection of Class A TV stations. |
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| 73.614 | Power and antenna height requirements. |
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| 73.615 | Administrative changes in authorizations. |
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| 73.621 | Noncommercial educational TV stations. |
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| 73.622 | Digital television table of allotments. |
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| 73.623 | DTV applications and changes to DTV allotments. |
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| 73.624 | Digital television broadcast stations. |
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| 73.625 | DTV coverage of principal community and antenna system. |
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| 73.635 | Use of common antenna site. |
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| 73.641 | Subscription TV definitions. |
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| 73.642 | Subscription TV service. |
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| 73.643 | Subscription TV operating requirements. |
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| 73.644 | Subscription TV transmission systems. |
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| 73.646 | Telecommunications Service on the Vertical Blanking Interval and in the Visual Signal. |
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| 73.653 | Operation of TV aural and visual transmitters. |
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| 73.658 | Affiliation agreements and network program practices; territorial exclusivity in non-network program arrangements. |
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| 73.664 | Determining operating power. |
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| 73.665 | Use of TV aural baseband subcarriers. |
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| 73.667 | TV subsidiary communications services. |
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| 73.669 | TV stereophonic aural and multiplex subcarrier operation. |
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| 73.670 | Commercial limits in children's programs. |
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| 73.671 | Educational and informational programming for children. |
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| 73.673 | Public information initiatives regarding educational and informational programming for children. |
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| 73.681 | Definitions. |
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| 73.682 | TV transmission standards. |
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| 73.683 | Field strength contours and presumptive determination of field strength at individual locations. |
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| 73.684 | Prediction of coverage. |
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| 73.685 | Transmitter location and antenna system. |
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| 73.686 | Field strength measurements. |
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| 73.687 | Transmission system requirements. |
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| 73.688 | Indicating instruments. |
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| 73.691 | Visual modulation monitoring. |
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| 73.698 | Tables. |
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| 73.699 | TV engineering charts. |
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| 73.701 | Definitions. |
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| 73.702 | Assignment and use of frequencies. |
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| 73.703 | Geographical zones and areas of reception. |
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| 73.712 | Equipment tests. |
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| 73.713 | Program tests. |
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| 73.731 | Licensing requirements. |
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| 73.732 | Authorizations. |
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| 73.733 | Normal license period. |
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| 73.751 | Operating power. |
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| 73.753 | Antenna systems. |
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| 73.754 | Frequency monitors. |
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| 73.755 | Modulation monitors. |
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| 73.756 | Transmission system requirements. |
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| 73.757 | Auxiliary transmitters. |
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| 73.758 | Alternate main transmitters. |
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| 73.759 | Modification of transmission systems. |
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| 73.761 | Time of operation. |
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| 73.765 | Determining operating power. |
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| 73.766 | Modulation and bandwidth. |
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| 73.781 | Logs. |
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| 73.782 | Retention of logs. |
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| 73.787 | Station identification. |
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| 73.788 | Service; commercial or sponsored programs. |
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| 73.801 | Broadcast regulations applicable to LPFM stations. |
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| 73.805 | Availability of channels. |
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| 73.807 | Minimum distance separation between stations. |
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| 73.808 | Distance computations. |
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| 73.809 | Interference protection to full service FM stations. |
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| 73.810 | Third adjacent channel complaint and license modification procedure. |
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| 73.811 | LPFM power and antenna height requirements. |
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| 73.812 | Rounding of power and antenna heights. |
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| 73.813 | Determination of antenna height above average terrain (HAAT). |
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| 73.816 | Antennas. |
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| 73.825 | Protection to reception of TV channel 6. |
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| 73.827 | Interference to the input signals of FM translator or FM booster stations. |
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| 73.840 | Operating power and mode tolerances. |
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| 73.845 | Transmission system operation. |
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| 73.850 | Operating schedule. |
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| 73.853 | Licensing requirements and service. |
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| 73.854 | Unlicensed operations. |
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| 73.855 | Ownership limits. |
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| 73.858 | Attribution of LPFM station interests. |
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| 73.860 | Cross-ownership. |
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| 73.865 | Assignment and transfer of LPFM authorizations. |
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| 73.870 | Processing of LPFM broadcast station applications. |
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| 73.871 | Amendment of LPFM broadcast station applications. |
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| 73.872 | Selection procedure for mutually exclusive LPFM applications. |
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| 73.873 | LPFM license period. |
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| 73.875 | Modification of transmission systems. |
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| 73.877 | Station logs for LPFM stations. |
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| 73.878 | Station inspections by FCC; availability to FCC of station logs and records. |
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| 73.879 | Signal retransmission. |
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| 73.881 | Equal employment opportunities. |
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| 73.1001 | Scope. |
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| 73.1010 | Cross reference to rules in other parts. |
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| 73.1010 | Cross reference to rules in other parts. |
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| 73.1015 | Truthful written statements and responses to Commission inquiries and correspondence. |
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| 73.1020 | Station license period. |
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| 73.1030 | Notifications concerning interference to radio astronomy, research and receiving installations. |
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| 73.1120 | Station location. |
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| 73.1125 | Station main studio location. |
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| 73.1150 | Transferring a station. |
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| 73.1201 | Station identification. |
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| 73.1202 | Retention of letters received from the public. |
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| 73.1206 | Broadcast of telephone conversations. |
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| 73.1207 | Rebroadcasts. |
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| 73.1208 | Broadcast of taped, filmed, or recorded material. |
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| 73.1209 | References to time. |
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| 73.1210 | TV/FM dual-language broadcasting in Puerto Rico. |
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| 73.1211 | Broadcast of lottery information. |
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| 73.1212 | Sponsorship identification; list retention; related requirements. |
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| 73.1213 | Antenna structure, marking and lighting. |
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| 73.1215 | Specifications for indicating instruments. |
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| 73.1216 | Licensee-conducted contests. |
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| 73.1217 | Broadcast hoaxes. |
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| 73.1225 | Station inspections by FCC. |
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| 73.1226 | Availability to FCC of station logs and records. |
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| 73.1230 | Posting of station license. |
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| 73.1250 | Broadcasting emergency information. |
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| 73.1300 | Unattended station operation. |
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| 73.1350 | Transmission system operation. |
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| 73.1400 | Transmission system monitoring and control. |
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| 73.1510 | Experimental authorizations. |
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| 73.1515 | Special field test authorizations. |
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| 73.1520 | Operation for tests and maintenance. |
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| 73.1530 | Portable test stations [Definition]. |
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| 73.1540 | Carrier frequency measurements. |
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| 73.1545 | Carrier frequency departure tolerances. |
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| 73.1545 | Carrier frequency departure tolerances. |
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| 73.1560 | Operating power and mode tolerances. |