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There is a False Alarm Tracks option on the Playback tab, with its own set of filters. Whilst False Alarm Tracks feature in both AdvanceGuard® and ClearWay™, the filters vary.

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Tag Preset: A text search for Tag Presets.

Tag Presets: This will show a drop-down list with Tag Presets which have been configured in System Settings.

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These have a similar set of fields as those inTracks AdvanceGuard® Track Queries.

Classification: This tab is explained under Classification Configs.

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Coasts Ratio: Value that determines how much of the track period was classed as coasting. 

Tag Preset: The Tag Presets which have been assigned to the track.

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Whilst we have found many reasons for a false alarm (please refer to these herehere: https://navtechradar.atlassian.net/wiki/spaces/TUN/pages/1389494353/False+Alarm+Analysis#Filters) there may be other scenarios which are more specific to a particular client, situation or environment. This is why it is essential for customers to review their tracks to ensure that Witness can be configured to identify as many false alarms as possible, and adjust their configuration as required.

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It is possible to add a track that the user believes to be a False Alarmfalse alarm, but which the system has not identified as such, to the list of False Alarm Tracks. The selection of suitable tracks to add is important because bad tracks or too many varied tracks will distort the analysis and reduce its effectiveness.

To add a track or tracks to the False Alarm List, select :

1. Select the desired track and then click the Track Analysis icon on the top right of the grid:
   

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2. This will open the Set Analysis Status dialogue:
   

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2. Select False Alarm from the drop down list and click Apply:
   

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2. This will add the track to the list of False Alarms.

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