... range radar for all kinds of boats 2. 10 inch LCD display marine radar ONWA®10.4” LCD DIAPLAY MARINE RADAR/ with AIS DisplayMODEL ... dB nominalDisplay Unit 1. Type10-inch, green phosphor CRT (8-level quantization)640(W) 480(H) dots 2. Display Modes:Head-up, Course ... , 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 38Ring: 0.0625, 0.125 ...