Last week we received a new toy - an Airmar 220WX weather station. We installed it this weekend.
The 220WX is an impressive instrument It connects to a NMEA2000 network directly. It provides the following information:
- GPS (lat, lon, cog, sog, time etc)
- Compass heading
- Wind speed and direction (apparent and true)
- Wind chill (apparent and true)
- Attitude (yaw, roll and pitch)
- Attitude rate (rate of turn, roll and pitch)
- Air temperature
- Atmospheric pressure
Wind is measured ultrasonically in the slot in the instrument. We've gone without wind data to date and estimated it in our log and blogs. Wind data may allow our autopilot to "steer to wind" - if we can get it's NMEA2000 input working. The 3D attitude and rate information may assist a future autopilot in difficult conditions. Atmospheric pressure and air temperature will assist weather forecasting.
|Airmar 220WX Mounted|
|On the Pushpit|
Zen Again's NMEA2000 network now includes the following:
- Vesper XB8000 AIS transceiver with WiFi hotspot
- Garmin VHF300iAIS DSC VHF with AIS receiver
- Garmin GPSmap451 chartplotter
- Raymarine SPX5 autopilot (connected but not yet configured)
- Airmar DST800 log, depth, water temperature
- Airmar 220WX weather station
With the 220WX on the network we could see it on the chartplotter.
|On the NMEA2000 Network|
|GPSmap ChartPlotter Data Display|
Our XB8000 NMEA2000 AIS includes a WiFi hotspot. Like many such devices it actually translates NMEA2000 data to NMEA0183 prior to transmission. Many newer parameters (such as attitude and attitude rate) were not standardised in NMEA0183 since they weren't widely available at the time. This filters data availability.
We really like the iNavX chartplotter app. It displays Navionics charts and overlays AIS data neatly. However its instrument page is text-only and has a limited parameter list. At least it can display wind...
|iNavX instrument display|
|OnSiteWX customised Location and Weather display|
|OnSiteWX customised Wind display|
|OnSiteWX customised Speeds & Courses display|
|OnSiteWX attitude display (no data!)|
We've been researching WiFi hotspots to find units which transmit all the data on our network. Most don't but we think we've found one. If so that will be the topic of our next blog.