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Suggestions for new features and capabilities » Test calibration values » 9/20/2022 1:23 am

Fredrik
Replies: 7

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@Nick, with your better understanding of the data logged - what are your thoughts on trying to "uncalibrate" / "recalibrate" the logfile in excel ...  would it even be possible? I'm think both in terms of how the logging frequency would affect calculating backwards and also if I have all the information needed. I'm for example not fully sure of how, when or what the 3D motion sensor would change the logged data and if it would be a problem. 

I understand it's not super simple - but is it even worth a try?

My first go would be to be able to recalculate TWA and CURRENT SET & DRIFT after changing "simple" calibrations to AWA/MHU, TWS, BSP, heading offset and Leeway ... but obviously I would have a go at TWA calibrations as well and possibly look in to heel corrected speed and possibly other calibrations I can't even think for now :-)

I'm thinking if I load  the recalibrated log in expedition, looking at currents in the track and using the stripcharts would be really helpful to evaluate any changes made.

I need to spend some time uncovering all the calculations done and I know B&G use cubic spline interpolation for TWA - but that should be possible to recreate.

I'm a statistical data analyst by trade - so as long as I have the data and can find the calculations I'm thinking I should be able to do the math ... but before I dig to deep - do you think there has been so many calculations applied by the time the data ends up in the logfile that it can't be "recalibrated" or do you think it can be done using the log file alone? Would it be worth a try to improve calibrations? 

I do have a Yacht Devices Voyage Recorder YDVR-04 in the system .... I haven't really spend to much time with the logs from that as I typically use expedition .... but possibly there could be more/ other data recorded from that.


  
 

Suggestions for new features and capabilities » Test calibration values » 9/19/2022 4:09 am

Fredrik
Replies: 7

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Sorry @rbhun I haven't found a solution for this - still do think it would be very useful to handle calibrations back home with "unlimited" time and "lots of logged data" as compared to testing it on the water and recording new data after each change.

I've been playing around with the log files to try and recalculate backwards ... but I haven´t really had the time to get a working process for it. 

Questions about Expedition features » Damping » 8/19/2022 4:56 am

Fredrik
Replies: 20

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I have a similar problem, I'm sending "Layline time on P/S" to my H5000 displays from expedition. I feel I have okay TWD/TWS damping, but I would like to calm down layline times a little. From settings>channels I can damp "Layline time on port ratio" but not "Layline time on port" it self ... does anyone know of a way to damp the time rather than the ratio? 

Technical Q&A » Weather data time out » 6/29/2022 3:16 am

Fredrik
Replies: 2

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Seams to be up and running here as well now, sorry for reporting to quickly

Technical Q&A » Weather data time out » 6/29/2022 2:31 am

Fredrik
Replies: 2

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We're starting the ORC DH Worlds Sunday, I'm trying to download weather data from the expedition server, everything "times out" even selecting a single time frame for a ruff GFS model. Is there an error in the weather server? I've tried extending time out to 180 seconds and tried different computers - but it still times out. My internet connection is fine.
  

Suggestions for new features and capabilities » Test calibration values » 6/21/2022 12:37 pm

Fredrik
Replies: 7

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I'm not sure if this could already be done by using expedition calculations and calibrations in old log files, but if not - would it be possible to "test" new calibration values on old log files?

I do calculations and calibrations in H5000 but I'm constantly looking for ways to improve calibrations by looking at the log files in expedition. Most of the time I make a best guess from expedition, go back to the boat, recalibrate - run a new course - and back to expedition again to check - often I start over again...

What would really help would be to try different calibrations in expedition and directly see from the track and the stripchart what the current set and drift would have been leg by leg should I have used a different calibration for heading or leeway. Or similarly how would by TWD be different tack to tack in the stripchart if I had used other calibrations for AWA / TWA ....this could of course be useful for all calibrations from compass offset, to speed calibrations ... and everything else  

I guess I'm looking for a feature to go back in logs and switch back and forth looking at either the data in the log file as recorded, or recalibrated using expedition calculations and calibrations instead of logged values... to play around with different values until the stripchart and data in the track looks consistent.
   

Technical Q&A » Expedition crashes when clearing grib files » 6/14/2022 6:27 am

Fredrik
Replies: 3

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Looks like the v11.15.22 release fixed this - thanks and great work as always!

Software Releases » Setting a specific start time » 6/10/2022 2:28 am

Fredrik
Replies: 2

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Thanks - I unchecked "keypad" and now it works - the calendar/time option with keypad checked is really a nice feature though, apart from not being able to set seconds, it's really easy to use when using a tablet compared to "desktop mode" (which is great with a desktop). 

Software Releases » Setting a specific start time » 6/09/2022 2:07 pm

Fredrik
Replies: 2

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With the new “calendar” for setting a specific starting time I can’t change the seconds - I can set hh:mm but the seconds seams to be set depending on when I klick “today”, am I missing something or could there be an option for setting seconds as well? When we race starting by handicap we often have a specific time in hh:mm:ss to start. But as it is now I can’t even set the start time to 11:00:00 - I’m using a tablet computer, could that be the reason I can’t set the seconds perhaps?

Questions about Expedition features » "Ahead of" in numberboxes » 6/03/2022 2:53 am

Fredrik
Replies: 0

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I'm trying to display "Ahead of" a mapped AIS boat in my number boxes, but I cant see any numbers, sometimes I have a value flashing, but then it's gone. Is that related to the update frequency of the other boat or is there a setting I'm missing? I can see the boat on the map, but ahead does not show any values.
 

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