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FEATURES
The ONWA Class B+ AlS Transponder transmits and receves all data ofnearby targets around your boat (with suitable VHF Antenne)
CLASS B+ AIS TECHNOLOGY
SOTDMA Technology
- Same technology used by Class A
- Guaranteed time slot allocation
- 5W Transmission Power - increases the range and AIS Satellite reception enabling Global tracking
- Range - can be seen as far as 10nm to 12nm
- Increased Transmission Rate (based on speed)

The AIS transponder enables vessels to broadcast and receive real-time identification, position, speed, and course data. It enhances maritime safety by preventing collisions, improving situational awareness, and allowing port authorities and nearby vessels to track movements accurately, essential for commercial and recreational shipping.
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PhysicalDimension200mm(length) x 138.7mm(width) x 45.8mm(height)Weight0.45kgPowerInput11 ~ 30VDCPower consumption0.20A nominal
Electrical Interface RS232 38,400 baudrate bi-directionalEnvironmentIEC 60945(Cat C)Operating Temperature-25℃ to +60℃WIFIModeHotspot (default) or WIFI terminalUser nameKS200xx_xxxxxxxxPassword12345678 (default)IP192.168.4.1For KS200A+ and KS200A+_SARTGPS Receiver (AIS Internal)IEC 61108-1 compliantConnectorsVHF Antenna connector PL259 femaleGPS Antenna connector SMA femaleNMEA 2000 InterfaceVHF TransceiverFrequency161.975 MHz (AIS Channel 1: CH87B)162.025 MHz (AIS Channel 2: CH88B)Transmitterx 1Receiverx 2Output Power5WChannel bandwidth25KHzModulation modesGMSKBit rate9600 b/s GMSK Rx Sensitivity<-112dBm @20%PERCompliant with the following standards- IEC62287-2 (IEC standard, Class B shipborne equipment)- IEC60945 Edn 4.0 (IEC standard, environmental requirements)- ITU-RM.1371-4 (Universal AIS Technical Characteristics)- IEC61162-1 Edn. 2.0 (IEC standard, digital interfaces part 1)- IEC61108-1 (IEC standard, GPS receiver equipment)- IEC61993-2 (IEC standard, Marine navigation equipment) -
Item Quantity Main Unit 1 Power/Data Cable 1 -
How to upgrade the KS 200A+ software program
How do I view AIS data from KS-200A+ in Navionics?
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