unmanned surface vessel with dual frequency echo sounder kit unmanned surface vessel with dual frequency echo sounder kit , procurement of unmanned surface vessel with dual frequency echo sounder kit , supply of “unmanned surface vessel with dual frequency echo sounder kit includingonboard integrated sonar control, communication kit, with autonomous navigation capability, dgps receiver with antenna and post processing software” , installation, testing, commissioning and acceptance of unmanned surface vessel and echo-souner kitas per technical specifications , training on data collection, usage and operation of instruments supplied and on post processing software , 2 years comprehensive onsite warranty for all the supplied components & accessories ( as per terms and conditions specified in warranty terms in gcc 28 and scc 28 )