... : 5/10/20/40/80/150/200/300Feet: 15/30/60/120/200/400/600/1000Fathoms: 3/5/10/20 ... be changed on the system menu.(4) Range ShiftUp to 300 meters (1000 feet, 150fathoms, 200 passi/braza)(5) ... End Depth(m) 5, 10, 20, 40, 80, 150, 300, 600Pulse-Length(ms) 0.1, 0.1, 0.1, ... unwanted signals by comparing last and present echoes in strength.(15) AlarmFish and Bottom alarms, Temperature alarm (sensor required)( ...