I am not sure about itās practicality ( radar log book) nowadays . Since 1998 i had computer based PMS where navigation equipment was listed including radars, Since abt 2000, I had radars which had some internal electronic loggers used by technicians from contracted company like Radio Holland for example .
So keeping them and filling them with what was required I considered as spurious and time wasting activity. But You know how it is with managers , they need records to prove they have records of records .
Have mentioned it in masters SMS reviews and other correspondence and sent to office . Any discussion with shore side slackers was always a waste of time and energy.
And they still use it as per google guru
And even all knowing AI bullshitter seems to be quite elloquent abt what radar log book is all about and what for. Have been quite happy since retirement in 2024 . T^his effing breaucratic shit was killing me .
Look at this smart ass AI son of a bitch lecture on radar log book here 
AI Overview
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A radar log book is used to document radar operations, including the setās behavior, target observations, and maintenance records. Itās a valuable tool for ship owners, radar manufacturers, navigators, and new/relief officers for various reasons.
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Hereās a more detailed look at its usage:
Benefits for:
The log book allows them to assess the benefits of their radar installation, identify areas for improvement, and potentially justify the cost of the equipment.
The records can be used to gather data on radar performance in different conditions, identify potential weaknesses, and inform future equipment design and development.
The log book helps them understand the radarās characteristics and limitations, learn to interpret the display effectively, and become more critical in their radar use.
The log provides a history of radar performance and allows new officers to quickly familiarize themselves with the radar set and its behavior.
Whatās included in a radar log book:
Records when the radar is used, under what conditions, and its overall performance.
Documents the characteristics of observed targets, including their type, position, and range.
- Log of Defects and Maintenance:
Records any malfunctions, repairs, or maintenance performed on the radar equipment.
Some log books include sections for recording radar phenomena or drawing blind/shadow sectors.
Key information recorded in the log book:
- Date and time of radar use.
- Shipās position.
- Weather conditions (visibility, wind, sea state).
- Radar set performance (transmitter, receiver, etc.).
- Any observed failures or maintenance needs.
- Target observations (type, position, range, etc.).
- Notes on any unusual radar phenomena.
How to use a radar log book:
- Start a new log book: Note the vesselās name, date, and other relevant information.
- Record operational data: Document when the radar is used, its performance, and any relevant conditions.
- Log target observations: Record details about observed targets, including their type, position, and range.
- Document defects and maintenance: Record any problems encountered and the actions taken to fix them.
- Review the log regularly: Analyze the data to identify trends, learn from past experiences, and improve radar use.
Let Beer_Captain and Meme_Lord handle this BS.