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.
Cool.
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.