Supply And Installation Of Vhf Digital Range Extender In Simplex Mode In Order To Get Improv Ed Enhanced Walkie Talkie Communication, In The Challenging Locations Like Curved Platforms With Shelter O Bstructions, High Gradient Terrains, Hilly Areas, Forest Areas, Train Yards Etc. Similar To Motorola Make Mode L Slr 1000 Or Its Equivalent And As Per Enclosed Detailed Specification. [ Warranty Period: 30 Months Aft Er The Date Of Delivery ] ]