• § 73.1 - Scope.

• § 73.14 - AM broadcast definitions.

• § 73.21 - Classes of AM broadcast channels and stations.

• § 73.23 - AM broadcast station applications affected by international agreements.

• § 73.24 - Broadcast facilities; showing required.

• § 73.25 - Clear channels; Class A, Class B and Class D stations.

• § 73.26 - Regional channels; Class B and Class D stations.

• § 73.27 - Local channels; Class C stations.

• § 73.28 - Assignment of stations to channels.

• § 73.29 - Class C stations on regional channels.

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

• § 73.31 - Rounding of nominal power specified on applications.

• § 73.33 - Antenna systems; showing required.

• § 73.35 - Calculation of improvement factors.

• § 73.37 - Applications for broadcast facilities, showing required.

• § 73.44 - AM transmission system emission limitations.

• § 73.45 - AM antenna systems.

• § 73.49 - AM transmission system fencing requirements.

• § 73.51 - Determining operating power.

• § 73.53 - Requirements for authorization of antenna monitors.

• § 73.54 - Antenna resistance and reactance measurements.

• § 73.57 - Remote reading antenna and common point ammeters.

• § 73.58 - Indicating instruments.

• § 73.61 - AM directional antenna field strength measurements.

• § 73.62 - Directional antenna system operation and tolerances.

• § 73.68 - Sampling systems for antenna monitors.

• § 73.69 - Antenna monitors.

• § 73.72 - Operating during the experimental period.

• § 73.88 - Blanketing interference.

• § 73.99 - Presunrise service authorization (PSRA) and postsunset service authorization (PSSA).

• § 73.127 - Use of multiplex transmission.

• § 73.128 - AM stereophonic broadcasting.

• § 73.132 - Territorial exclusivity.

• § 73.150 - Directional antenna systems.

• § 73.151 - Field strength measurements to establish performance of directional antennas.

• § 73.152 - Modification of directional antenna data.

• § 73.153 - Field strength measurements in support of applications or evidence at hearings.

• § 73.154 - AM directional antenna partial proof of performance measurements.

• § 73.155 - Directional antenna performance recertification.

• § 73.157 - Antenna testing during daytime.

• § 73.158 - Directional antenna monitoring points.

• § 73.160 - Vertical plane radiation characteristics, f(θ).

• § 73.182 - Engineering standards of allocation.

• § 73.183 - Groundwave signals.

• § 73.184 - Groundwave field strength graphs.

• § 73.185 - Computation of interfering signal.

• § 73.186 - Establishment of effective field at one kilometer.

• § 73.187 - Limitation on daytime radiation.

• § 73.189 - Minimum antenna heights or field strength requirements.

• § 73.190 - Engineering charts and related formulas.