Chart plotter not receiving AIS

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Cathy*

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This should have been a simple swap. We have removed a Garmin GPSmap 750 and fitted a GPSmap 923. We have a Mcmurdo M10 AIS which worked with the old chart plotter but not with the new one. The AIS is transmitting and the receiver light is flashing. There are only 3 wires involved. We have changed the port settings to high speed. Still nothing. What are we missing?
 
Did you set the 0183 port to input?

See page 183 of the PDF manual.


I haven't used a Mcmurdo AIS, but it looks like a rebadged em-trak. You will probably be able to check it's receiving by the configuration software on your laptop and connecting via USB, although I don't suspect this to be the cause.
 
McMurdo M10 is a rebadged Camino 108. I have updated my McMurdo using software from the Camino website.
This link Alltek Marine – the AIS Specialists - Producs - AIS Class B CS - CAMINO-108 has the manuals and configuration software. An internet search should find you the actual binary firmware file where the latest firmware seems to be 1.2.8.06 which I have installed and it works fine.
 
We've been to the boat again and double checked wiring. Checked continuity of the brown wire and tried using the 2000 cable. Still nothing. Just now dropped into marine superstore who couldn't suggest anything so they've kept the machine for the rep to check tomorrow.
 
Do post back here with the 'fix'. I know that the M10 has quite a few configuration options available such as the two NMEA output ports, each of which can have different baud rates plus the built-in multiplexor and GPS pass through options.
The PC software allows these values to be changed (or just look at what the current settings are). I have attached the wiring diagram that Camino provide for reference. Maybe Marine Superstore have the capability to interrogate the unit to let you know exactly how it is configured.
 

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Our GPSMAP 750 and GPSMAP 923 both use the brown wire to receive. It should be so simple. The chap in marine Superstore said they are designed for a lay person to put the wire in and off they go. We have found the store and Garmin help desk both very helpful in the past so I'm sure they'll sort it tomorrow.
 
Was this ever resolved?
I have the same issue, but I pick up vessels nearby, but no more than 100m. Also, I don’t show up on the ais system.
My aerials have been tested and are fine.
I ran diagnostics and get all green ticks on the configuration program.
Ideas?
 
Fimacca said:
Was this ever resolved?
I have the same issue, but I pick up vessels nearby, but no more than 100m. Also, I don’t show up on the ais system.
My aerials have been tested and are fine.
I ran diagnostics and get all green ticks on the configuration program.
Ideas?
Click to expand...
If you're receiving AIS from vessels that are 100m away, but not from those that are 1km away, then it's a reception problem - either it's the aerial or the coax or it's a problem with the radio receiver electronics within the AIS unit. The first two are far more likely than the latter.

Go to Force4 and ask them to sell you an emergency VHF rail-mount antenna kit, then test the AIS receiver using it.
 
Fimacca said:
Was this ever resolved?
I have the same issue, but I pick up vessels nearby, but no more than 100m. Also, I don’t show up on the ais system.
My aerials have been tested and are fine.
I ran diagnostics and get all green ticks on the configuration program.
Ideas?
Click to expand...
It was but ours was a different problem. We were not receiving or transmitting. Even though the fitting instructions state to use the same coloured wires as the previous AIS we found another wiring diagram and discovered that the newer Garmin uses different coloured wires.
 
Thanks.
We tested both aerials ( we have a back up on the push pit ) and both were good. We stopped them over. No increase in range.
I was thinking a setting or software issue somewhere?
Tried restarting. No difference
 
Fimacca said:
Thanks.
We tested both aerials ( we have a back up on the push pit ) and both were good. We stopped them over. No increase in range.
I was thinking a setting or software issue somewhere?
Tried restarting. No difference
Click to expand...
Ah! There may be a software filter, so that vessels aren't shown if they're at more than a certain distance. Normally you'd set this to 10 or 20 miles, but I guess it could have been set wrongly. It may be on the settings on the chartplotter.
 
Fimacca said:
Thanks.
We tested both aerials ( we have a back up on the push pit ) and both were good. We stopped them over. No increase in range.
I was thinking a setting or software issue somewhere?
Tried restarting. No difference
Click to expand...

Would be useful if you posted details of the equipment.
 
Hiya
mcmurdo M10 ais unit - it is a rebadged camino-
connected to a BG vulcan v9 chart plotter. I ran diagnostic checks with a laptop, plugged direct to the ais unit - using the mcmurdo program - and all seems to check out with a test - I fiddled with baud rates, and toggled whatever i could. no change !
So my vhf aerials are good.
I cannot see any settings of relevance on the chart plotter - unless anyone can direct me !
 
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