[markgraham]

Sorry

I just saw that I had a team called ‘0’. It must have gone to all pilots without teams when I loaded the pilots from the excel macro.

My fault, I should have looked closer. It works now I took out team ‘0’

All the best

Mark G

[markgraham]

In fact, I think the first ‘team’ includes everyone.

Mark

[markgraham]

Hi

I have a question on the teams scoring: Is there some code that we can put in the template to filter out the pilots who are not in a team. When I score the teams then a team appears with no name with all the non-teamed pilots.. they are usually winning and take the top half of the team results page.

Thanks

Mark

[markgraham]

Hello All
I got the software from Durval Henke and have started trying it out. So far it looks great. I’ll probably be using it in anger (for a real comp) at the end of June.

Great stuff
Mark

ps. If you have the DPI setting of the screen on your computer on anything higher than normal (96dpi) the interface will not show all of the drop-downs.

[markgraham]

Hello

Just wondering if you are close to uploading this software. I would love to try it.

Thanks in advance
Mark

[markgraham]

I have had a reply from Garmin about the auto calibrate function on the units with pressure sensors.

They calibrate the altimeter constantly.

The track log that is recorded is always the altimeter altitude (can be displayed on the unit by selecting the ‘elevation’ field). The altimeter is more sensitive to rapid changes in height than the gps.

If auto calibrate is on then the altimeter is adjusted to gps height, slowly but continuously.
If the auto calibrate is off then the altimeter calibration will remain the same as at launch (assuming it is not changed in flight).
If the altimeter is switched off then gps height will be recorded.

Unfortunately there is no way to know from the download what is being recorded nor the status of the calibration.

I have tried changing the height in flight on my 76S and have the tracklogs if anyone is interested. The change is instant. So changing by 100m with a 5s tick rate shows a 20m/s climb rate which is detectable by looking at the file in excel or compegps. Smaller changes will be harder to detect on stronger days.

Mark

[markgraham]

Hello Stein

I don’t know whether Stein-Tore has any plans for implementing a way of viewing both sets of height data.

It is great to have them both available anyway, thanks.
Mark

[markgraham]

OK, so if the file is internally saved to a file system then it is not really valid because it could be tampered with.

The question now is whether the device’s memory can be read and the track ‘downloaded’ as is the case with most other units. This to me is unclear.

Cheers

Mark

[markgraham]

I am doing a little digging into this too.

As far as I am aware Flytec and Brauniger give the Pressure Altitude (altitude with respect to 1013.2hPa), so any calibration of the instrument is ignored. The gps altitude is also available.

I think Aircotecs give QNH (altitude with respect to the pressure at mean sea level), so it depends on the instrument calibration. Gps altitude is not available. I think the instrument calibrates on power up assuming there is gps coverage. I wish to confirm this with Aircotec.

MLRs and Garmins without pressure sensors give gps altitude.

Garmins with pressure sensors give QNH auto calibrated to the gps height or manually over-ridden. I believe they record what is displayed on the screen but will confirm this with garmin as some have said this is not the case. I’d also like to know when they auto-calibrate. Manually changing the height while flying may or may not be detectable in the track log. If it is then it may look remarkably like an autocalibration.

I think it is a good idea for gpsdump to extract and save both altitudes if available. It is extra work for SteinS tho’. Some instruments only give barometric and some only give gps. Which to display by default in FS I don’t know.

I believe in most cases we would be using Pressure Altitude (flight levels) for airspace restrictions in comps, in which case the Flytecs already give the correct information. I believe they can be set to display this information to the pilot as well.

Those with only gps height or QNH will need to calibrate their instrument to the height at launch and calculate the height of the flight level restriction. OR those with manual calibration could set their instrument to 1013.2hPa and fly with PA/Flight Levels (I think this is correct). Those with gps height only, need to know on warm days the gps will read high.

Those checking tracklogs will need to know what height data they are looking at. Having the dual data from the flytecs will help to give the gps – barometric differences at height.

None of this is a problem if there is no height restriction of course.

Cheers all

Mark

[markgraham]

Hi
We’ve just been doing the comp in Laragne with 110 people. The scoring all went well but the downloads are definitely the bottleneck.
I’ll start a new topic on my comments, but a way to download multiple GPSs in an integrated way is a very good idea. Can you activate the link again?

Thanks
Mark

[markgraham]

Hi

The only problem I have with on-line help is that any internet usually starts working on about day 3 of the comp.

Its not a major deal

Cheers

Mark

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