I am in the process of setting up the 12/20 Gyro in a new model and all is going well with the RxSetup program. The unit talks to the PC no problems and I have used the software quite a bit to fine tune servo groups, directions, etc.

I had a suspicion that a flap servo was binding and after some tests decided that the data analysis program was the easy answer to indicate servo loads and answer my question.

The Data analysis program does not get any data from the Weatronics unit and I can't see why it wouldn't.
There seems to be no 'Load' button or menu selection so I assumed that it loads the data automatically from the unit if connected.

I have an SD RAM card in the Weatronics unit, is there any special function I have to perform to get it to store data?

Any help in pointing me in the right direction would be appreciated.

PC is Windoze XP Pro in emulation.

Mboland,

From the setup program you can not load your data. you must remove your sd card and load it onto the pc then open Nav view and open the files off the sd card. Each file is created when you turn on the rx with the card inserted. the highest number will be your last session.

Tony Fandino

Hi Mike,
Tony is right. The Sd-card has to be removed from the receiver and the data has to be read from either the card or from the spot where you download it to. Every time you switch on the receiver, it will start a new log file.
For an analysis like you want to do, it is best to go through all channels one by one. Then in the analysis you will be able to distinguish better the correlation between the single servos and channels and see the specific load of the current and the voltage of the battery etc. Take the time to study the manual on how to use the Nav-View program. It allows you to open several windows on the 2D chart area to give a nice overview of the different functions that you want to monitor.

Hope this helps,

Thank you for using this forum,

Gerhard

Thank you for your prompt input, I knew I was not holding my tongue right or something simple like that.[:@]
Now all is explained and I understand why there are only 'file' handling functions in Nav-View.
It's always so simple when you know how.

Now that I have actually "read" the instructions (very nice of you not to just tell me to RTFI) I am finding some anomalies in the data, especially when comparing list view to graph view.
In list I have a max peak current of 2.5A, but in graph view I seeing a very noisy graph with peaks to 10.85A??? How can this be?
There are several sections in the data where the current is listed as 0.0A, which does not make any sense as even in failsafe (transmitter off) it should be holding the digital servos with some current. These last for about .5 sec.

Also the servo figures are given as a percentage. A percentage of What?
This time I actually went to the instructions FIRST, but it fails to explain what this percentage figure is relating to.

Again, any help or guidance greatly appreciated.

Hi Mike
The list that you see is a readout in 1 second intervals. so you are getting a moments view. The Exel does rounding and if it is below .05 amps, it will tell you 0. It is unlikely that you will see the 10.85 Amps in the data at the left, because they usually last for a few micro seconds, unless you have a biding of servo's going on, which would mean you have a steady current.
The percentage relates to your choice in the servo setup that also uses % ages. You have the choices of different scaling to have them displayed. The Percentage display (+ or - 200%) of the servos is designed to accommodate all eventually available servo travels. It tells you how much of the travel that you have configured in the servo setup (or left alone) is being used. It can help to determine the differences of servos and manufacturers. They do not share this information, so we provide you the tools to find out what they are actually doing. It takes a little time, but you can do quite a bit with the information that you can gain from methodically checking everything.
In addition you also have transmitters that can send adjustable signals for every channel.
You also have the option to choose how you want the 2D-data displayed. (visible, occurred and possible values) On top of that you can also group them to be similarly scaled. I could go into more detail, but a little playing with it will explain more than I can tell in a few lines.

I hope this helps,

Gerhard

Thanks for the response. The percentage figure now makes sense to me.
I will be doing some careful logged runs of the gear this week, working each surface and noting times so I can compare to the data in Nav-View.

I understand the concept of the pulsed current readings and the list only showing part of that, but is there any way of expanding the scale of the list to show .1sec or less?
Are there any other programs that will read the data, such as Excel, Mathmatica, etc.?

Thanks for your time.

Hi Mike,
You can actually use the program that is called Nav2CSV 2.1

You open the program, determine weather you want one line per second, one line per every 100 milliseconds or one line per every millisecond.

Check or uncheck the other available boxes per your preference or data available.

Then you open Explorer to display the folder in which the file you want to convert and drag the Nav view recording file that you want to analyze over the top of the program window and drop it in there.

The little blue status line at the bottom will give you a status report. It will create the CSV file in the same folder as the original nav view log.

If you want to only view a short section in detail, you can open the Nav View file with Nav view and delete the parts that you are not interested in by selecting them in the left window and deleting them. Then you save it under a new name and do the conversion, which will give you your limited data selection thus avoiding the problem of too much information.

Have fun,

Gerhard

Thanks for the prompt response as usual.
Next question... sorry... but where can I get NAV2CSV?

It sounds exactly what I am looking for.
I am used to dealing with Gb of data so the few meg from the log files is just a doddle.

Hi Mike,
Sorry that I did not catch this sooner. I have a subscription on this forum, but sometimes I get notice and sometimes I don’t.
The NAV2CSV is part of the download program of one of the latest updates. You just open it after the installation and it has a little window on the screen. You then open windows explorer and take the *.nav file that you want to convert with the left mouse button, you drag and drop it on top of the window and it will automatically create a *.csv file in the same folder from where you dragged the nav file from. You can also do this from the desktop.

Gerhard

Hi Gerhard,
Thanks for the reply. I did eventually open my eyes and find the NAV2CSV after reading through the manual again ... [&:]
It's gives me exactly what I was after.
Although the battery current figures still don't agree with the graph, but I will keep working on it.