# HF Noise Identification and Mitigation Guide

Using a Software-Defined Radio with ka9q-radio and ka9q-web to identify and mitigate controllable noise interfering with HF signal reception.

```{toctree}
:maxdepth: 2
:caption: Fundamentals

basics/natural-noise.md
basics/man-made-noise.md
basics/receiver-station-noise.md
basics/digital-communication-noise.md
basics/common-sources.md
basics/other-noise-terms.md
basics/definitions.md
```

```{toctree}
:maxdepth: 2
:caption: Tools & Techniques

diagnostics/detection-measurement.md
diagnostics/source-identification.md
diagnostics/mitigation.md
```

```{toctree}
:maxdepth: 2
:caption: Strategies & Tactics

strategies/identification-mitigation-strategies.md
strategies/case-study-1.md
strategies/case-study-2.md
strategies/case-study-3.md
strategies/case-study-4.md
strategies/case-study-5.md
strategies/case-study-6.md
strategies/case-study-7.md
```

```{toctree}
:maxdepth: 2
:caption: Resources

resources/external-links.md
resources/miscellaneous-notes.md
resources/contributors.md
```