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#1
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Do I need an NMEA multiplexer ?
Hello Group
Started the installation of an easyais unit today initially tried to get the 4800 baud data into the NMEA port input on the s3 corepack but it seems that it does not re transmit the data back out from the corepack into the c70 plotter. The AIS works great straight into the plotter at 4800 baud but that means discopnnection of the S3 and means no heading data to the c70. So will i need a multiplexer / combiner ? my sys C70 (at helm) ST6001 AP head , st60 wind speed log etc. S3 corepack with external rate gyro with seatalk in and out also sending nmea 0183 to C70 I do have a raymarine interface at helm which has seatalk input and NMEA out to feed navtex and VHF (nmea) but this does not have a seatalk return back up to the nav gear. I really thought I might get away with just poking the ais into the S3 and have it retransmit back onto the seatalk or nmea network but now I have given this a bit more thought it seems unliklely Any suggestions on budget multiplexor appreciated TIA franky |
#2
posted to rec.boats.electronics
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Do I need an NMEA multiplexer ?
"Franky" wrote in message
ups.com... Hello Group Started the installation of an easyais unit today initially tried to get the 4800 baud data into the NMEA port input on the s3 corepack but it seems that it does not re transmit the data back out from the corepack into the c70 plotter. The AIS works great straight into the plotter at 4800 baud but that means discopnnection of the S3 and means no heading data to the c70. So will i need a multiplexer / combiner ? Yes. First of all, setting the AIS receiver to 4800 is not wise in areas with dense shipping because the bandwidth of a 4800 baud channel can be a severe limitation. We sell the MiniPlex-AIS, which is specially designed for use with Raymarine's C/E displays. It is basically the same multiplexer as the one Raymarine sells (the E55059, which we also produce), but with one 38400 input and the output cranked up to 38400 as well. I see you're in the UK. We have a few dealers there and if they don't have it in stock, we can ship to you directly. Meindert www.shipmodul.com |
#3
posted to rec.boats.electronics
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Do I need an NMEA multiplexer ?
On Jun 18, 2:32 am, "Meindert Sprang"
wrote: "Franky" wrote in message ups.com... Hello Group Started the installation of an easyais unit today initially tried to get the 4800 baud data into the NMEA port input on the s3 corepack but it seems that it does not re transmit the data back out from the corepack into the c70 plotter. The AIS works great straight into the plotter at 4800 baud but that means discopnnection of the S3 and means no heading data to the c70. So will i need a multiplexer / combiner ? Yes. First of all, setting the AIS receiver to 4800 is not wise in areas with dense shipping because the bandwidth of a 4800 baud channel can be a severe limitation. We sell the MiniPlex-AIS, which is specially designed for use with Raymarine's C/E displays. It is basically the same multiplexer as the one Raymarine sells (the E55059, which we also produce), but with one 38400 input and the output cranked up to 38400 as well. I see you're in the UK. We have a few dealers there and if they don't have it in stock, we can ship to you directly. Meindertwww.shipmodul.com The NMEA input on the autopilot does not recognize AIS sentances (neither does the nmea input on the ST6001 head), and requires connection direct to the chartplotter unless your AIS product has an nmea-in port (4800) that will rebroadcast your rapid heading information in with the AIS 38400 speed data. |
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