wayne hoath
New member
I have an 1835 radar. The radar already has the heading provided to it from the autopilot. I am bring in AIS and GPS from my vesper watchmate 2.0 AIS transceiver. By default this out puts the NMEA 0183 data at 138400 baud rate. If I leave this baud rate at default then the AIS targets appear on the radar screen but no GPS is displayed. If I set the baud rate to 4800 then I get the GPS on the radar screen but not the AIS targets.
Thinking that it must need the GPS at this lower baud rate I bought a Quark-Elec A033 multiplexer which allows me to take in the NMEA data from the vesper at one rate and put it out at 138400 for the AIS on NMEA port 1 and 4800 for the GPS to NMEA port 2 on the Radar. I'm not at this point filtering the sentences so both ports will be getting all of the data at different rates. So this doesn't work. I still get the AIS targets but no GPS.
Do I need to filter the data from the multiplexer so that it only gives out the GPS sentences at 4800 to NMEA port 2 on the radar? I am guessing so but would be good to know before I go down that rabbit hole.
Thanks,
Thinking that it must need the GPS at this lower baud rate I bought a Quark-Elec A033 multiplexer which allows me to take in the NMEA data from the vesper at one rate and put it out at 138400 for the AIS on NMEA port 1 and 4800 for the GPS to NMEA port 2 on the Radar. I'm not at this point filtering the sentences so both ports will be getting all of the data at different rates. So this doesn't work. I still get the AIS targets but no GPS.
Do I need to filter the data from the multiplexer so that it only gives out the GPS sentences at 4800 to NMEA port 2 on the radar? I am guessing so but would be good to know before I go down that rabbit hole.
Thanks,
Last edited: