... inch LCD display marine radar ONWA®10.4” LCD DIAPLAY MARINE RADAR/ with AIS DisplayMODEL: KR-1338 FEATURE:1. 4KW ... , 3 nm)0.8µ s/ 600 Hz(3*, 4, 6, 8, 12, 16, 24, 36 nm)Pulselength & PRR for 1nm ... -up*, True motion***Heading input required *Heading and speed inputs required 3. Range Scales(nm)Range: 0.125, 0 ... 0.5, 0.5, 1, 1, 2, 2, 3, 4, 6, 12 4. Echo TrailInterval: 15s, 30s, 1min, 3min, 6min, 15min, 30min ...