I've set up a Lowrance 3G radar to PC and am having a problem with the start up interlock. As a compass
signal, I've used a Ramarine E85001 Seatalk
converter getting the data from my Tridata and Autopilot
. The NMEA
data (4800) is good to the computer, shown on my Comcheck program and displayed on the OpenCPN
(V 4.0.0) gauge panel. (Mag HDG, Depth
, Speed thru water
, etc. shown) The Comcheck program shows both HDM and HDG data received.
But, the radar scans are not returned. The interlock check box shows OK Open GL, Boat
Position, Radar IP and Radar Sending Data. Not checked are Heading and Variation. (I don't understand the Variation interlock.) When the start button is clicked, the radar goes to standby for a few seconds, then to green. About 1 amp of current
drain suggests that it is scanning, but there is no return to the screen
. Occasionally, when my GPS
generates a random COG signal, the interlock is satisfied the control box
is displayed and so are the radar scans. I get the same results with 2 PC's running Windows 7 and Vista.
Any ideas? I guess it's OK while in motion, but it would be nice to test this at the dock
or use it at anchor
if boats are dragging down on you in a squall.