[DG] [DG11] ST60+ wind

[Stormcruiser]

Hi, I have Raymarine ST60+ Wind Instrument and masthead unit, which appears to work but is giving misleading information. Apparent Wind Direction is normally to Port and typically appears to be about 90 degrees away from where it should be, and the wind speed is reading about 30% lower than it should be. So far I have checked, Calibration is set to 0, and wind direction flicks to dead ahead when powered up without the masthead unit connected. We have a 12.5v supply on the Seatalk line, and 8v on the red wire going up to the MHU, and 0v on the screen. With 30kts of wind the signal on the yellow wire in unreadable, and with wind coming from 180 degrees, directly behind the boat we have around 2.4v on Blue and 2.6v on Green wire, and the wind indicator is showing wind at 90 degrees to port. Is this a known issue? And which is most likely to be causing this? MHU or the ST60+ wind instrument?