47 CFR Subpart A - AM Broadcast Stations

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  1. § 73.1 Scope.
  2. § 73.14 AM broadcast definitions.
  3. § 73.21 Classes of AM broadcast channels and stations.
  4. § 73.23 AM broadcast station applications affected by international agreements.
  5. § 73.24 Broadcast facilities; showing required.
  6. § 73.25 Clear channels; Class A, Class B and Class D stations.
  7. § 73.26 Regional channels; Class B and Class D stations.
  8. § 73.27 Local channels; Class C stations.
  9. § 73.28 Assignment of stations to channels.
  10. § 73.29 Class C stations on regional channels.
  11. § 73.30 Petition for authorization of an allotment in the 1605-1705 kHz band.
  12. § 73.31 Rounding of nominal power specified on applications.
  13. § 73.33 Antenna systems; showing required.
  14. § 73.35 Calculation of improvement factors.
  15. § 73.37 Applications for broadcast facilities, showing required.
  16. § 73.44 AM transmission system emission limitations.
  17. § 73.45 AM antenna systems.
  18. § 73.49 AM transmission system fencing requirements.
  19. § 73.51 Determining operating power.
  20. § 73.53 Requirements for authorization of antenna monitors.
  21. § 73.54 Antenna resistance and reactance measurements.
  22. § 73.57 Remote reading antenna and common point ammeters.
  23. § 73.58 Indicating instruments.
  24. § 73.61 AM directional antenna field strength measurements.
  25. § 73.62 Directional antenna system operation and tolerances.
  26. § 73.68 Sampling systems for antenna monitors.
  27. § 73.69 Antenna monitors.
  28. § 73.72 Operating during the experimental period.
  29. § 73.88 Blanketing interference.
  30. § 73.99 Presunrise service authorization (PSRA) and postsunset service authorization (PSSA).
  31. § 73.127 Use of multiplex transmission.
  32. § 73.128 AM stereophonic broadcasting.
  33. § 73.132 Territorial exclusivity.
  34. § 73.150 Directional antenna systems.
  35. § 73.151 Field strength measurements to establish performance of directional antennas.
  36. § 73.152 Modification of directional antenna data.
  37. § 73.153 Field strength measurements in support of applications or evidence at hearings.
  38. § 73.154 AM directional antenna partial proof of performance measurements.
  39. § 73.155 Directional antenna performance recertification.
  40. § 73.157 Antenna testing during daytime.
  41. § 73.158 Directional antenna monitoring points.
  42. § 73.160 Vertical plane radiation characteristics, f(θ).
  43. § 73.182 Engineering standards of allocation.
  44. § 73.183 Groundwave signals.
  45. § 73.184 Groundwave field strength graphs.
  46. § 73.185 Computation of interfering signal.
  47. § 73.186 Establishment of effective field at one kilometer.
  48. § 73.187 Limitation on daytime radiation.
  49. § 73.189 Minimum antenna heights or field strength requirements.
  50. § 73.190 Engineering charts and related formulas.

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