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Boating & Yachting | Cruising, Educational, & Navigation Resources
Boating and Yachting Resources/Information. Day sailor to world cruiser: marine communications, cruising info, navigation information, safety, and weather.
836,422 
$ 1,440.00
VOACAP Quick Guide: HF Propagation Prediction and Ionospheric Communications...
This site is dedicated to VOACAP (Voice of America Coverage Analysis Program for HF Propagation Prediction and Ionospheric Communications Analysis), an improved and corrected...
846,509 $ 1,440.00