| With digital GPS and colour video sounders, you can challenge the skipper to see how close he can get to a particular point on the wreck. |
| Three vessels will be towing the underwater vehicles equipped with sonar and multi-beam echo sounders to search the plane. |
| They live in sounders of about twenty animals led by the eldest female sows. |
| They use a range of instruments such as sounding rods, echo sounders and theodolites. |
| The quality of the echo sounders used onboard the vessels and the results seemed to be within IHO Special standards. |
| Sounders of wild boar are unbothered by anybody because the land here is a protected environment for wildlife. |
