HF-Noise

Fundamentals

  • Natural Noise Sources
  • Man-Made Noise (Electromagnetic Pollution)
  • Receiver & Station-Generated Noise
  • Digital & Communication-Related Noise
  • Common HF Noise Sources
  • Other Basic Noise Types
  • Important Definitions

Tools & Techniques

  • Noise Detection and Measurement
  • Noise Source Identification Techniques
  • Noise Mitigation Techniques

Strategies & Tactics

  • General Identification & Mitigation Strategies
  • Case Study 1: Waterfall Changes When Moving a Feedline
  • Case Study 2: 60Hz Humming Noise on Certain Frequencies
  • Case Study 3: Periodic Short-Duration Pops in Audio
  • Case Study 4: Repeating Spectral Humps at 1.8MHz Intervals
  • Case Study 5: Noise Floor from DC to 60MHz is Higher than ITU Models Predict
  • Case Study 6: Suspected FM Broadcast Station Interference
  • Case Study 7: Noise Heaps

Resources

  • External Links
  • Miscellaneous Notes
  • Contributors
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