Canadian Chart 1 Symbols, Abbreviations and Terms
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Fog Signals - Section R
Examples of Fog Signals
| Ref. | IHO Symbology | Description | CHS Symbology |
| 20 |  |
Siren at a lighthouse, giving a long blast followed by a short one (N), repeated every 60 seconds |  |
| 21 |  |
Wave-activated buoy |  |
| 22 |  |
Light buoy with horn giving a single blast every 15 seconds in conjunction with a waveactuated whistle |  |
| The fog signal symbol may be omitted when a description is given. Note: For information concerning fog signals, see the Canadian Coast Guard publication, "List of Lights, Buoys and Fog Signals." https://www.notmar.gc.ca/list-livre-en.php |
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