Thursday, 24 April 2025, 11:40 AM
Site: eGMDSS E-learning system
Course: Tečaj rukovanja VHF GMDSS postajom (VHF-HR)
Glossary: Riječnik
OTFOptimum Traffic Frequency is usually the most effective frequency for ionospheric reflection of radio waves between two specified points on Earth. Commonly is taken as 85 % of MUF. |