ONWA, KFISH-7 Fishfinder ECHOSOUNDER

7-Inch High-Resolution Display
Powered by 600W Transceiver
Advanced Sonar Technology (Dual-frequency 50 kHz and 200kHz）
Durable and Waterproof Design
User-Friendly Interface

Technical Specification

General

Display

7-inch Color TFT LCD

Echo Color

16 colors (including background color) according to echo intensity.
The background color is selectable from blue, light blue, white and black

Basic Range

Meters 5/10/20/40/80/150/300/600/1000
Feet 15/30/60/120/200/400/1000/2000/3000
Fathoms 3/5/10/20/40/80/150/300/600
Passi/Braza 3/5/10/30/50/100/200/350/600
*The basic ranges can be changed on the system menu.

Range Shift

Up to 1000 meters (3000 feet, 600 fathoms, 600 passi/braza)

Zoom Range

Times 2,3,4 and 6 ranges

Bottom Lock Expansion Range

5/10 /20 meters, 10/20/40 feet, 2/5/10 fathoms , 2/5/10 passi/braza

Auto Mode

Automatic adjustment of range and gain

Display Mode

High Frequency (200K),
Low Frequency (50K),
Dual (200K and 50K 1/2 display on each),
Zoom (200K and 50K zoom) and
A-scope Display

Zoom Display

Marker Zoom,
Bottom Zoom and
Bottom-lock Expansion

Display Advance Speed

Lines/TX: Freeze, 1/8, 1/4, 1/2, 1/1, 2/1, 4/1

TX Frequency

50 and 200 kHz (alternately transmitted)

Power Output

600W RMS

Pulse-length/TX rate

Display End Depth (m)	5	10	20	40	80	150	200	300	600	1000
Pulse-Length 200K(µs)	120	220	320	520	920	1020	1020	1020	1020	1020
Pulse-Length 50K(µs)	170	270	370	570	970	1070	1070	1070	1070	1070
TX Rate(pulse/min)	2000	1333	706	353	171	98	75	52	29	17
TX period(millisecond)	30	45	85	170	350	610	800	1150	2070	3550

Interference Rejecter

Rejects unwanted signals by comparing last and present echoes in strength.

Alarm

Fish and Bottom alarms,
Temperature alarm (sensor required)

NMEA0183 Sentence Supported

Input: RMC, VTG,HEV
Output: SDDBS, SDDBT, SDDPT
POWAB/*only hardness output ONWA format*/
SDSBH/*only hardness output ONWA format*/
PHDX/*only hardness output HONDEX format*/
PKODS/*only hardness output KODEN format*/