Navigation General · Publications — Pub 117
NGA Pub. 117, Radio Navigational Aids, contains information on:
- ARadio time signals, distress/safety communications, and radio aids to navigation✓ Correct
- BGalley menus
- CDiesel maintenance
- DCargo stowage
Explanation
Pub. 117 lists radio aids worldwide: radio direction-finder/RACON data, time signals, navigational warnings, distress and safety systems (GMDSS), and station details—useful in passage appraisal and communications planning.
Authority: NGA Pub. 117
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