DISAPPEARING SKYSIGHT DATA

[Terence Honikman]

Here is a brief review of the last four flights using an LX9000 running 9.05.

1. 5/13/2023: 3.7 HOURS, Skysight data available for the entire flight

2. 6/25/2023: 3.2 HOURS, Skysight data dropped ~20 minutes into flight. I restarted the LX900, however, Skysight data remained unavailable for the remainder of the flight.

3. 6/30/2023: 4.4 HOURS, Skysight data available for the entire flight.

4. 6/31/2023: 5.9 HOURS, Skysight data dropped ~20 minutes into flight. I restarted the LX900, however, Skysight data remained unavailable for the remainder of the flight.

Have you had similar experiences?

Is there a process to recover the Skysight data while airborne once it has been lost?

Do you have any ideas on how to prevent the loss of Skysight data?

Thank you,

Terry

[Craig Reinholt]

Terence, do a search on this forum for "Skysight". It has been discussed in great detail.

[Ramy Yanetz]

We all have same caching issues. It was supposed the be fixed in recent beta but wasn’t. If you keep your wifi hot spot  on during the flight (you may need to restart your phone hot spot, not the LX9000) then as soon as you get cel signal it may download the latest  skysight data again. Using this method I get skysight layers about 80-90% of the time. 

I don’t think LX Folks are reading this forum but Mathew from Skysight does  so I am hoping he is on this issue 

Ramy 

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[Matthew Scutter]

I am on the forum, and also have similar problems, but unfortunately I have no special insight into the inner workings of LX devices, I am just a user. I raise problems with LX whenever I experience them.

My tips are:

1) If you really want the forecast to work, download before flight and then disable tethering. There is no way to check it's completely downloaded, but what is downloaded seems to never be lost.

2) If you want the forecast to update or the sat pic to work, then you need data inflight. Everywhere I fly in the world, pilots tell me their country is special and the phone towers are pointed down here and mobile data doesn't work. Somehow when I go flying there works just fine though and I have had relatively reliable coverage on every continent, in wave, thermals, on the ridge. The key is to *mount* your phone *above* the canopy rail. If you put it in the side pocket, it won't work. If you mount it low, it won't work. If you mount it such that it has a clear line of sight to a large area, it'll find towers and connect long enough to download satellite pics or forecast updates usually fast enough to keep up in realtime. Sometimes you have to wait five minutes.

To view this discussion on the web visit https://groups.google.com/d/msgid/lxnav-user-group/230071357.2073978.1688425503169%40mail.yahoo.com.

[Terence Honikman]

Thanks, Matthew, those seem like really helpful suggestions and I will try them. 

Please confirm that by "tethering" you mean remaining connected to the wifi network. That would match an idea that I had formed: in flight, a short burst of wifi connectivity could initiate a new download, but I would not expect that to delete the complete file(s) of cached data.

Terry

[Matthew Scutter]

Yes, that's what I mean by tethering.

It does appear the LX deletes first, then downloads, which is not ideal with marginal connectivity.

[lonkelly]

I've been using the SkySight "app" on my iPhone in flight, which works fine with or without a cell signal to show my location relative to predicted wave or convergence. I'm not expecting SkySight to be spot on accurate (although at times it has been uncanny). However this discussion tells me I'm missing something and there must be real advantages to displaying SkySight forecasts on the LX vs the phone. Can some of those who''ve been working at it so dillegently explain?

L

[Matthew Scutter]

The phone usually works well.

To view this discussion on the web visit https://groups.google.com/d/msgid/lxnav-user-group/685d4aac-7628-42dc-8534-9a4a6ca97a09n%40googlegroups.com.

[Ramy Yanetz]

Lonkelly,

The real (big) advantage is that you don’t need to look at your phone and interact with your phone in addition to the LXNav display. My phone remains secured in my pocket during flight. The idea of having weather layer on your flight computer moving map is great, we all just wish LX will fix the caching issue they itroduced awhile ago. Every time I mention this to them they either say the problem is on skysight side, or that it was fixed in latest beta, but it wasn’t. 

Ramy

https://groups.google.com/d/msgid/lxnav-user-group/685d4aac-7628-42dc-8534-9a4a6ca97a09n%40googlegroups.com

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[Marc Teugels]

Hey all.

Since i moved From 9.06f to 9.06g on my lx9050 , some skysight Pages refuse to load. Always the same ones in luding wave pages

Uros is I believe on a (deserved) holiday , Had some replies from lxnav but no solutions .

Worked without problems before that . I consider a fallback to 9.06f to test.

How do I go about ?

I have the WiFi option. I found the old beta in lxnav data . I put it on SD . Can I installed it from there ?

Many thanks 

[Morgan Hall]

I believe this was a back-end services bug. I reported this on Friday after Terry Honikman noticed it in both the Styler and the 9000 and it was not version specific on either the Styler or the 9000.  

After reporting it to both LX and Matthew Scutter, I got a report yesterday that it was fixed. I could confirm that it was at least fixed in the Styler.  There may be additional layers missing, like Surface Winds, but the list went from 6 options back to about 20.  

Morgan

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[Marc Teugels]

Yep today all pages worked including Wave , only Windshear (not so important) was missing.

I did remove a number of less used pages . Wonder if this influenced it.

As said , probably a server thing

Marc

[John Johnson]

So dang tired of weather info disappearing.  Sent another support request to LxNav.  I'm wondering if this issue is local to my vicinity?  Once, SS data disappeared very close to 0000 GMT which made me suspicious.  But it seems the drop out time is random.  If any of you have a particular weather download hokey-pokey dance that works for you, please share.

My latest support request:

I continue to see SS weather display disappear after loading.  In my last 2 flights, SS displayed properly for the first ~10min of the flight, then disappeared (9.08).  I tried re-loading during the flight by turning on the LX wifi and connecting my phone.  The weather display restored but after ~5min, it disappeared again.  In other case with beta 9.06g, I've lost SS data later in the flight (1-5hrs after launching).  I've also lost weather display on the ground before launch and cannot restore it even after power cycling the LX9070.
I suspect this behavior is not common world wide or you would have a large number of support requests.  Is it possible that my region (Arizona in the western US) or my timezone (-7 GMT) is a factor in the weather display software issue we see here?  
I've tried many different sequences in the attempt to get weather display to work.  This includes allowing 1hr+ of wifi connection time and leaving the unit turned on before flight.  I also wait until after the morning SS update occurs (~11:00am local).  It would be extremely helpful if an information page provided details of the currently loaded SS data including SS update time, weather data types, expiration, data validity, etc.  

Please help, I really want to avoid adding an external flight computer just to provide a usable weather display solution.
best regards, John Johnson

JJ

[Andy Blackburn]

After talking with foreign pilots it seems that US cellular coverage in the air is far worse than GSM-based service in other countries. I don’t know, but it seems like when the LX makes a connection it deletes the old weather imagery and starts to upload the new imagery, but if the connection isn’t good and the upload doesn’t complete you are left with no imagery. Seems like LX should hang on to and show the old imagery until it has a complete replacement, but I’m not a software engineer so maybe I’m missing something. I set my LX 9070 to only connect on the ground and live with zero updates. I also don’t get why they don’t load the full forecast on things like convergence as that is usually pretty good.

Andy

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[Ramy Yanetz]

I had quiet a few flights since we started discussing this issue and can report back that most of the time now I have no issues. In couple flights my skysight layer disappeared for short time until I got cell reception. 

I always keep the Wi-Fi on in the air. 

Ramy

To view this discussion on the web visit https://groups.google.com/d/msgid/lxnav-user-group/D03E8A10-7064-4947-AD46-FB67AA4440A6%40gmail.com.

[Andy Blackburn]

After talking with foreign pilots it seems that US cellular coverage in the air is far worse than GSM-based service in other countries. I don’t know, but it seems like when the LX makes a connection it deletes the old weather imagery and starts to upload the new imagery, but if the connection isn’t good and the upload doesn’t complete you are left with no imagery. Seems like LX should hang on to and show the old imagery until it has a complete replacement, but I’m not a software engineer so maybe I’m missing something. I set my LX 9070 to only connect on the ground and live with zero updates. I also don’t get why they don’t load the full forecast on things like convergence as that is usually pretty good.

Andy

On Sep 13, 2023, at 2:52 PM, John Johnson <john...@gmail.com> wrote:

To view this discussion on the web visit https://groups.google.com/d/msgid/lxnav-user-group/e14b815e-eb7f-4c7a-93b3-d0b014c8f502n%40googlegroups.com.

[John Johnson]

Uros responded to my support request:

On Wed, Sep 13, 2023 at 10:37 PM Info Lxnav <in...@lxnav.com> wrote:

Thankyou for your mail and explanation of the problem. 

Could you please make two debug reports. Before takeoff and after landing, when SS disappears. We will try to reproduce your problem.

Best regards, Uros

I would appreciate it if others would send their own SS disappearing experience in a support request to LxNav.  This would help reinforce that this is a common problem in our region and provide more debug clues.  They will want as much detail as possible: a sequential description of events leading to SS disappearing, your wifi connect/disconnect practice, time of day, map page setup, weather overlay type(s), location, etc.  In the meantime, I also asked if the software has provision for a debug datalogging file we can extract and send to them.

JJ

[Ramy Yanetz]

I shared the same info with LXNav and they also asked me to produce the debug reports, but since then I did not have the issue so didn’t send a debug report. Indeed the more info we can provide to them the better they can debug the issue, 

Ramy

https://groups.google.com/d/msgid/lxnav-user-group/7c41451e-826f-4fc4-b434-38f652336912n%40googlegroups.com

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[John Johnson]

In early Oct, I submitted a few bug reports and had an email exchange regarding the potential for this being a timezone-dependent issue.  I received this response in late Oct:

Thankyou for debug reports. 

Please update the latest beta, where we did some fixes. There are two issues. One is a potential bug in our code and another, missing data of skysight layers. 

Best regards, Uros

I flew a couple of flights with 9.08a but still had an issue with dropping SS data an hour or so into the flight.  

I loaded 9.08b on Sat and it worked fully as expected during a 2hr flight.

Looks like 9.08c is out now. 

My glider will be down for maintenance and it will be a while before I'm able to test further.  Fingers crossed.

JJ