ONWA Marine Electronics FAQ
What is a Chartplotter ?
A chartplotter is a marine navigation device that integrates GNSS data with a marine electronic chart.
What is GNSS system
Global Navigation Satellite System (GNSS) refers to any satellite constellation that provides global positioning navigation, nowadays several GNSS are currently available:
- Galileo(EU)
- GPS (USA)
- GLONASS (Russia)
- BeiDou (China)
Using signals from space, each of these systems transmits ranging and timing data to GNSS receivers onboard a vessel to determine the location of the vessel.
What marine electronic charts do Onwa chartplotters support?
Full series of Onwa chartplotter supports 4 electronic charting system, which are Navionics+, C-Map MAX, K-Chart2.0 and K-Chart3.0
What NMEA standards do Onwa chartplotters support?
– KP-25 and KP-27 series support NMEA0183 and NMEA2000
– KM-8 and KM-12 series support NMEA0183, NMEA2000 and ONENET
What is the format of user data (waypoints, routes, tracks etc.) in Onwa chartplotters ?
The data format of user data (waypoints, routes, tracks etc.) is called ODF (Onwa data format).
What is the waterproof standard of Onwa chartplotters
The waterproof standard of Onwa chartplotters is IPX6.
Can ODF (Onwa data format : waypoint, route, tracks etc.) be exchanged with other user data format ?
Yes, Onwa provides a PC data exchange software to convert Onwa data format (ODF) to GPX
What is AIS transponder?
Automatic identification systems (AIS) transponders are designed to be capable of providing position, identification and other information about the ship to other ships and to coastal authorities automatically.
What is Class B AIS transponder ?
Class B AIS Transponders are mainly used by recreational vessels and smaller commercial vessels. Information transmitted by Class B transponders can be “seen” by all AIS receiving equipment. Class B transponders also receive all Class A and Class B AIS transmissions.
What is Class B+
Class B+, a new standard, utilizes SOTDMA format transmissions which offer a 5W power output (2.5x more powerful than a regular Class B), a guaranteed time slot for transmission in busy traffic areas and faster update rates depending upon the speed of the vessel.
Onwa AIS transponder is Class B or Class B+ ?
All Onwa AIS transponders are Class B+ AIS transponder
Can Onwa AIS transponder stop AIS transmission ?
Yes, either Onwa AIS transponder black box or AIS/chartplotter can stop the AIS transmission.
What other functions can Onwa AIS support ?
Besides standard Class B+ AIS transponder functions, Onwa AIS transponder can also support the below functions :
- exactTrax satellite tracking
- text messaging between Onwa AIS transponders
- AIS track recording function
What is Autopilot system ?
An autopilot system is to steer a boat in a set course.
What is included in Onwa autopilot system (KAP-866) ?
Onwa autopilot system includes the below standard items :
– A control and display unit
– A heading sensor
– A rudder feedback unit
Can Onwa autopilot system (KAP-866) steer according the set route of a GPS navigator or a marine chartplotter ?
Yes
What data format does Onwa autopilot system (KAP-866) accept for waypoint or route navigation ?
Onwa autopilot accepts NMEA0183 APA or APB or XTE+BOD
What steering systems do Onwa autopilot (KAP-866) support ?
Onwa autopilot system supports hydraulic steering system with solenoid valve installed.
Can Onwa autopilot system (KAP-866) to work with other steering systems ? Such as reversing motor ?
Yes, please consult Onwa distributors for details.
Can Onwa autopilot system (KAP-866) accept stepper or synchro interfaces from old Gyrocompass ?
It needs to add a Gyro to NMEA converter (KGN-200) to convert the stepper or synchro interfaces signal to NMEA0183.
What is a marine radar ?
A marine radar is used to detect other ships and land obstacles for collision avoidance.
What is the difference of a radome and open array antenna ?
Longer the antenna array, better target resolution and discrimination. Therefore the target resolution and discrimination of open array antenna is better than radome antenna.
Beside to use Onwa radar display, can Onwa marine radar antennas to use with other display ?
Onwa marine radar antennas support Ethernet connection. All Onwa marine radar antennas can use with Onwa MFD or PC software provided by Onwa.
What is fishfinder ?
Fishfinder allow anglers to see graphically what is happening below the boat so they can identify fish.
What is CHIRP fishfinder ?
CHIRP is the abbreviation of “COMPRESSED HIGH-INTENSITY RADIATED PULSE TECHNOLOGY”. Instead of sending a single frequency at a time as traditional fishfinder, CHIRP fishfinder sends a sweep frequencies.
What is different of traditional fishfinder and a CHIRP fishfinder ?
CHIRP fishfinder can deliver much better target resolution than traditional fishfinder system, improved target resolution enables you to have more clear picture of underwater structure.
What is MFD ?
MFD includes almost all navigational functions that mostly use onboard a vessel, such as chartplotter, GNSS
navigation, wind display, fishfinder, AIS, marine radar, gauges etc
What is the choice Onwa MFD ?
Onwa MFD KM series provides 8”(KM-8) and 12” (KM-12) color LCD display includes the below built-in
options :
– KM-8/KM-12 : built-in GNSS navigator
– KM-8A/KM-12A : built-in Class B+ AIS transponder and GNSS navigator
– KM-8C/KM-12C : built-in fishfinder and GNSS navigator- KM-8X/KM-12X : built-in Class B+ AIS transponder, fishfinder and GNSS navigator
What accessory should be added to use marine radar function in Onwa MFD
An Onwa marine radar antenna (radome or open array) needs to be added to make Onwa MFD to become
a marine radar display.
For details please consult your local Onwa dealer.
Can the fishfinder and marine radar functions can be shared between Onwa MFD onboard ?
Yes, fishfinder function, marine radar function and NMEA data (OINENET) can be shared among Onwa MFD
onboard by adding a KM-router and connected all Onwa MFD to KM-router by an Ethernet cable.
For details please consult your local Onwa dealer.
What NMEA standard does Onwa MFD support ?
Onwa MFD supports NMEA0183, NMEA2000 and ONENET
Can Onwa MFD convert NMEA0183 to NMEA2000 and ONENET ? and vice versa ?
Yes, Onwa MFD can convert all NMEA0183 to NMEA2000 and ONENET.
Also Onwa MFD can convert all external data from NMEA2000 and ONENET port to NMEA0183.
Therefore Onwa MFD can use as a NMEA0183/NMEA2000/ONENET converter
What other marine radar antennas that Onwa MFD can be supported ?
Beside Onwa marine radar antenna, Onwa MFD can also support SIMRAD solid state marine radar.
For details please consult your local Onwa dealer.
What NMEA devices do Onwa has ?
Onwa has a series of NMEA devices, KMD-210, KMD-550, KMD-402 and KC-2W
What is the differences of KMD-210 and KMD-550 NMEA Distribution box ?
KMD-210 amplifies the NMEA input data then distributes the NMEA input data to 10 output ports
KMD-550 also amplifies the NMEA input then distributes the NMEA input data to 15 output ports
What is the purposes of KMD-402 ?
KMD-402 can combines 4 input NMEA data into one then provides same combined data on two output
ports.
What is the purposes of KC-2W ?
KC-2W is to convert NMEA2000 to NMEA0183 and vice versa.
KC-2W also provides WIFI function for configuration and data output purposes