Subpart A—AM Broadcast Stations

1. CFR
2. ›
3. Title 47
4. ›
5. Chapter I
6. ›
7. Part 73
8. ›
9. Subpart A

Sections

Section numbering in the official eCFR can be non-consecutive. Omitted section numbers are not treated here as reserved unless the source explicitly labels them that way.

• 73.1
  § 73.1 Scope.
• 73.14
  § 73.14 AM broadcast definitions.
• 73.21
  § 73.21 Classes of AM broadcast channels and stations.
• 73.23
  § 73.23 AM broadcast station applications affected by international agreements.
• 73.24
  § 73.24 Broadcast facilities; showing required.
• 73.25
  § 73.25 Clear channels; Class A, Class B and Class D stations.
• 73.26
  § 73.26 Regional channels; Class B and Class D stations.
• 73.27
  § 73.27 Local channels; Class C stations.
• 73.28
  § 73.28 Assignment of stations to channels.
• 73.29
  § 73.29 Class C stations on regional channels.
• 73.30
  § 73.30 Petition for authorization of an allotment in the 1605-1705 kHz band.
• 73.31
  § 73.31 Rounding of nominal power specified on applications.
• 73.33
  § 73.33 Antenna systems; showing required.
• 73.35
  § 73.35 Calculation of improvement factors.
• 73.37
  § 73.37 Applications for broadcast facilities, showing required.
• 73.44
  § 73.44 AM transmission system emission limitations.
• 73.45
  § 73.45 AM antenna systems.
• 73.49
  § 73.49 AM transmission system fencing requirements.
• 73.51
  § 73.51 Determining operating power.
• 73.53
  § 73.53 Requirements for authorization of antenna monitors.
• 73.54
  § 73.54 Antenna resistance and reactance measurements.
• 73.57
  § 73.57 Remote reading antenna and common point ammeters.
• 73.61
  § 73.61 AM directional antenna field strength measurements.
• 73.62
  § 73.62 Directional antenna system operation and tolerances.
• 73.68
  § 73.68 Sampling systems for antenna monitors.
• 73.69
  § 73.69 Antenna monitors.
• 73.72
  § 73.72 Operating during the experimental period.
• 73.88
  § 73.88 Blanketing interference.
• 73.99
  § 73.99 Presunrise service authorization (PSRA) and postsunset service authorization (PSSA).
• 73.127
  § 73.127 Use of multiplex transmission.
• 73.128
  § 73.128 AM stereophonic broadcasting.
• 73.132
  § 73.132 Territorial exclusivity.
• 73.150
  § 73.150 Directional antenna systems.
• 73.151
  § 73.151 Field strength measurements to establish performance of directional antennas.
• 73.152
  § 73.152 Modification of directional antenna data.
• 73.153
  § 73.153 Field strength measurements in support of applications or evidence at hearings.
• 73.154
  § 73.154 AM directional antenna partial proof of performance measurements.
• 73.155
  § 73.155 Directional antenna performance recertification.
• 73.157
  § 73.157 Antenna testing during daytime.
• 73.158
  § 73.158 Directional antenna monitoring points.
• 73.160
  § 73.160 Vertical plane radiation characteristics, f(θ).
• 73.182
  § 73.182 Engineering standards of allocation.
• 73.183
  § 73.183 Groundwave signals.
• 73.184
  § 73.184 Groundwave field strength graphs.
• 73.185
  § 73.185 Computation of interfering signal.
• 73.186
  § 73.186 Establishment of effective field at one kilometer.
• 73.187
  § 73.187 Limitation on daytime radiation.
• 73.189
  § 73.189 Minimum antenna heights or field strength requirements.
• 73.190
  § 73.190 Engineering charts and related formulas.