~FEATURE:
1) Dual-frequency: 50 and 200 KHz
2) 5.6-inch TFT LCD display with 8-color or multi-level amber presentation
3) Auto Mode for hands-off operation
4) Variety of display modes: A-scope, bottom-lock expansion, marker zoom and unique bottom zoom displays
5) Compound Temperature sensor option

SPECIFICATIONS
1. General
(1) Display 5.6”inch TFT LCD
(2) Echo Color 8 colors (including background color) according to echo intensity. Monochrome display is also available. The background color is selectable from blue, light blue, white and black.
(3) Basic Range Meters: 5/10/20/40/80/150/200/300
Feet: 15/30/60/120/200/400/600/1000
Fathoms: 3/5/10/20/40/80/100/150
Passi/Braza: 3/5/10/30/50/100/150/200
The basic ranges can be changed on the system menu.
(4) Range Shift Up to 300 meters (1000 feet, 150fathoms, 200 passi/braza)
(5) Zoom Range Times 2, 3, 4 and 5 ranges
(6) Bottom Lock Expansion Range 5/10meters, 10/20feet, 2/5fathoms, 2/5passi/braza
(7) Auto Mode Automatic adjustment of range and gain
(8) Display Mode High Frequency (200K),Low Frequency (50K), Dual (200K and 50K 1/2display on each), Zoom (200K and 50K zoom) and A-scope Display
(9) Zoom Display Marker Zoom, Bottom Zoom and Bottom-lock Expansion
(10) Display Advance Speed Lines/TX: Freeze, 1/8, 1/4, 1/2, 1/1, 2/1
(11) TX Frequency Output power 50 and 200kHz (alternately transmitted), 300W
(12) Pulse-length/TX rate Display End Depth(m)  5, 10, 20, 40, 80, 150, 300
Pulse-Length(ms)     0.2, 0.2, 0.2, 0.4, 0.8, 1.5, 3.0
TX Rate(pulse/min)  600, 600, 600, 375, 187, 100, 50
(13) Interference Rejecter Rejects unwanted signals by comparing last and present echoes in strength.
(14) Alarm Fish and Bottom alarms, Temperature alarm (sensor required)
(15) Input/output data
Input
Output NMEA0183
RMC, VTG
SDDBT, SDDPT