river radar

river radar

[′riv·ər ′rā‚där]
(navigation)
A marine set especially designed for river pilotage, generally characterized by a high degree of resolution and a wide selection of range scales.
References in periodicals archive ?
In the modern world of barge towing, that means the instrument panel contains a radio, the very latest river radar, and possibly a relative newcomer to the rivers, the Automatic Identification System (AIS).