If anyone has had trouble with the ground wind
or GSM data on their Maretron DSM-250, here is the hot tip, courtesy of Maretron tech support:
If you have more than one GPS
device on the network, the DSM-250 has a hissy fit. I have 3. One of them is the NMEA 0183
port on my nav table Zeus, which injects not only GSM data (from the AIS
black box) but STW and some other data.
I assigned Instance 2 to this device, et voila, DSM-250 probs disappeared.
All kudos to Maretron tech support, who as always were incredibly responsive and helpful, miles better than Navico
or others I have dealt with.
And yes, the Maretron devices are expensive and kludgey, but essential. I think about shelling out for the N2K View software
, so I can run the whole network on the boat computer. And you get for free a mobile app for Android devices.