Expedition Navigation Software 
1 | Suggestions for new features and capabilities » Ability to scale chart in "follow" and "ahead" mode » 9/15/2024 8:20 am |
- barne
- Replies: 1
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As I understand the zoom level is fixed when choosing either "follow" or "ahead" mode in "Charts | Selection mode". It would be great if "Scale in" and "Scale out" were still available if these modes.
| Questions about Expedition features » API for access to the weather data in Expedition and the log files » 3/31/2024 11:11 am |
- barne
- Replies: 2
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”Reading the log file” ?
If you mean after sailing you can transform Expedition’s own log format (that is a kind of condensed csv format) to a more normal csv file through “Tools” / “Extract log data”
If you mean access sailing data while sailing, then you can set up a suitable output (most simple is data in Expedition format) through a tcp or udp stream through a network connection.
Finally you could always develop something using the Expedition DLL. I have done it using different environments: Visual Basic, Visual C# and python.
| Questions about Expedition features » No long range EC HIRES gribs? » 3/27/2024 10:12 pm |
- barne
- Replies: 2
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Copy that. I understand. Thanks for the clarification.
| Questions about Expedition features » No long range EC HIRES gribs? » 3/27/2024 1:33 pm |
- barne
- Replies: 2
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I am trying to download the EC HIRES grib file for 16 days (384 hours). However, the downloaded file only covers 84 hours.
Does anyone else have more luck? Or is it like this for everyone?
| Questions about Expedition features » Displaying AIS information in Expedition / Cmap » 6/23/2023 6:28 am |
- barne
- Replies: 8
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One prerequisite is of course that "targets" are selected in "Display" setting.
| Questions about Expedition features » Route optimization restricted to certain wind angles » 6/23/2023 6:08 am |
- barne
- Replies: 3
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If you just adjust your polars (temporary) with very low boatspeed outside the desired wind angle range, I guess you should be able to get what you're looking for.
| Questions about Expedition features » Set and Drift » 9/26/2022 2:58 am |
- barne
- Replies: 6
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Yes, your set and drift is a direct computation of you Heading and COG so if they are erratic, the set and drift values will be subsequently erratic.
Unless your H5000 system is really well calibrated, your set and drift numbers will more be a reflection of calibration errors rather than the actual set and drift. Set and Drift will be subject to:
* Error in boat speed calibration. Both the absolute value as well as the heel and linearity correction. Due to friction in the speedo (assuming you have a paddlewheel) the reading will not be linear so I would definitely populate the speed component of the heel correction whereas the actual heel dependance is more a hit and go thing.
* Error in compass calibration - I would recommend to calibrate the compass before every major regatta.
* Error in leeway - this might be a factor in your case. Check that the leeway is stated in the right direction (i e that your course is lower than your heading) and also doublecheck your leeway factor.
| Questions about Expedition features » Trim log till race start? » 9/26/2022 2:45 am |
- barne
- Replies: 2
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Don't know if it applicable to you but my process is:
When I am about to start sailing seriously that day I:
* open log folder
* turn off expedition
* Copy that day's log file and paste
* Remove the original
* Restart Expedition
Now I have only the important data in the log-YYYYMMMDD.csv which is uncluttered by previous data. But if I by some reason want to need to access previous data it is all there in the og-YYYYMMMDD - copy.csv file and can load it through "Load track" or "Stripchart - load log data"
| Questions about Expedition features » Damping » 7/23/2022 1:35 pm |
- barne
- Replies: 20
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Sometimes it can help to put ridiculously big values on actions to check the effect of things. I sometimes do that on calibration both to see that there is an effect and in the desired direction.
As Nick points out, damping settings many times does not affect numbers downstreams but only for when displaying data.
I many times see laylines etc jump a lot in the start box if either the nav system or calibration isn't perfect. Then the set and drift will be more a result of that and not the actual current. Setting the damping high on set and drift (or as in the case of the start box lock them) might help.
| Technical Q&A » Data input format? » 7/23/2022 1:19 pm |
- barne
- Replies: 1
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It depends on what you want to do.
1) If you want to want to load a log file so you can look at the track or study variables in a strip chart you have two options in the tool ribbon:
(Load) Expedition standard csv format where nowadays the two first rows displays channels and channel numbers in the log file and then on rows 4 onwards containing BoatID, UTC and then pairs of channel numbers and values.
OR
(Load GPX) with a GPX file for tracks (using Lat and Lon only)
2) If you want to replay the log file you should be able to output the raw sentences through a UDP or TCP socket in the same pace as recorded and select network instrument as either Actisense ASCII, Digital Yacht RAW or Yacht Devices RAW depending on the RAW format.