GPS frequency: 1575.42 ± 5MHz, Beidou frequency: 1561 ± 5MHz. Compatible with Boat Ship Marine GPS Navigation System Unit Modem Receiver Transducer Explorer Fish finder Sounder. External Marine ...

This can be easily achieved, at low cost, with GPS. Moreover, it is possible to revisit the points precisely with the GPS waypoint feature (see Section 10.15). As the operation of marine seismic ...

There is growing concern about the conservation of seabirds. Globally, their conservation status is worsening at a much faster rate than for any other group of birds. Today, about 30% of seabirds are ...

There is growing concern about the conservation of seabirds. Globally, their conservation status is worsening at a much ...