- GPS/GLONASS uncorrected
- Differential corrections via SBAS
- Differential corrections via UHF
- Differential corrections via 3G / 4G
The ETA Nautical Technical Committee has worked together with the European Maritime Pilots Association in order to define a series of recommendations for tugboat captains, pilots and harbour masters which will help them optimise the energy efficiency on the tugs and the assisted vessels during harbour towage operations. These recommendations are based on 3 main principles: Planning, Cooperation and Communication.