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Biggles66
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Group: Forum Members
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Hello Stratux knowledgables... I just received my Stratux unit from Crewdogelectronics for which I specified I needed the European version and with FLARM, meaning it should be pre-installed.
I have connected the unit on the ground selecting GDL90 Compatible Device under Third-Party Devices (tapped "go flying"), but only seem to be able to see large airliners heading above and not sure I am getting any FLARM readouts. And even the airliners show intermittently for a few seconds only to disappear / reappear at irregular intervals.
Also, is there a range beyond which you cannot see ADS-B/FLARM returns?
Then there are a number of aircraft I can see on FlightRadar24, but are not showing up on Skydemon even though in Stratux I have selected to see all a/c up to 40,000ft.
Anything I am missing here? Many thanks for any enlightenment, especially re. FLARM.
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Biggles66
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Group: Forum Members
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+xHello Stratux knowledgables... I just received my Stratux unit from Crewdogelectronics for which I specified I needed the European version and with FLARM, meaning it should be pre-installed.
I have connected the unit on the ground selecting GDL90 Compatible Device under Third-Party Devices (tapped "go flying"), but only seem to be able to see large airliners heading above and not sure I am getting any FLARM readouts. And even the airliners show intermittently for a few seconds only to disappear / reappear at irregular intervals.
Also, is there a range beyond which you cannot see ADS-B/FLARM returns?
Then there are a number of aircraft I can see on FlightRadar24, but are not showing up on Skydemon even though in Stratux I have selected to see all a/c up to 40,000ft.
Anything I am missing here? Many thanks for any enlightenment, especially re. FLARM. Maybe Tim?..
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b3nn0
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Group: Forum Members
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+x+xHello Stratux knowledgables... I just received my Stratux unit from Crewdogelectronics for which I specified I needed the European version and with FLARM, meaning it should be pre-installed.
I have connected the unit on the ground selecting GDL90 Compatible Device under Third-Party Devices (tapped "go flying"), but only seem to be able to see large airliners heading above and not sure I am getting any FLARM readouts. And even the airliners show intermittently for a few seconds only to disappear / reappear at irregular intervals.
Also, is there a range beyond which you cannot see ADS-B/FLARM returns?
Then there are a number of aircraft I can see on FlightRadar24, but are not showing up on Skydemon even though in Stratux I have selected to see all a/c up to 40,000ft.
Anything I am missing here? Many thanks for any enlightenment, especially re. FLARM. Maybe Tim?.. ADS-B Range of the Stratux is usually 50nm+ and you should see all ADS-B Traffic. Flarm range usually around 3-20km, depending on the sender. If you have a flarm-enabled version is easy to check. Connect to the Stratux Wifi and point your webbrowser to http://192.168.10.1 and check the settings if Flarm is enabled or can be enabled (note: in most cases you can not have 1090ES, UAT AND Flarm enabled. Disable UAT if you enable Flarm). (Note: The current Beta can also output Traffic via Flarm-NMEA instead of GDL90. SkyDemons NMEA implementation seems to be much more stable than GDL90, so you might want to use the latest beta, configure the Stratux IP to 192.168.1.1, which is required by SkyDemon, and then use that). (Note 2: Flightradar also does mlat, which means that they approximate Mode-C/S target positions by triangulation from multiple base stations. So flighradar showing traffic that is not seen by stratux is fairly common. You can check it by clicking on an aircraft on flightradar24 and check the traffic source. If it says mlat, then Stratux will not display it.)
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Biggles66
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Group: Forum Members
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+x+x+xHello Stratux knowledgables... I just received my Stratux unit from Crewdogelectronics for which I specified I needed the European version and with FLARM, meaning it should be pre-installed.
I have connected the unit on the ground selecting GDL90 Compatible Device under Third-Party Devices (tapped "go flying"), but only seem to be able to see large airliners heading above and not sure I am getting any FLARM readouts. And even the airliners show intermittently for a few seconds only to disappear / reappear at irregular intervals.
Also, is there a range beyond which you cannot see ADS-B/FLARM returns?
Then there are a number of aircraft I can see on FlightRadar24, but are not showing up on Skydemon even though in Stratux I have selected to see all a/c up to 40,000ft.
Anything I am missing here? Many thanks for any enlightenment, especially re. FLARM. Maybe Tim?.. ADS-B Range of the Stratux is usually 50nm+ and you should see all ADS-B Traffic. Flarm range usually around 3-20km, depending on the sender. If you have a flarm-enabled version is easy to check. Connect to the Stratux Wifi and point your webbrowser to http://192.168.10.1 and check the settings if Flarm is enabled or can be enabled (note: in most cases you can not have 1090ES, UAT AND Flarm enabled. Disable UAT if you enable Flarm). (Note: The current Beta can also output Traffic via Flarm-NMEA instead of GDL90. SkyDemons NMEA implementation seems to be much more stable than GDL90, so you might want to use the latest beta, configure the Stratux IP to 192.168.1.1, which is required by SkyDemon, and then use that). (Note 2: Flightradar also does mlat, which means that they approximate Mode-C/S target positions by triangulation from multiple base stations. So flighradar showing traffic that is not seen by stratux is fairly common. You can check it by clicking on an aircraft on flightradar24 and check the traffic source. If it says mlat, then Stratux will not display it.)
Thanks heaps b3nn0! I appreciate it.
Managed to flash card and eventually did get to see a FLARM enable/disable button. But none for UAT. When connecting to SkyDemon though, I still only get the option to select GDL90 or Location Services - no Flarm-NMEA - Am I missing something? Also, I am yet to see an actual FLARM target on Skydemon.
And, is there anywhere I can check what all the settings should be set to for Skydemon? Is there anything one can do to avoid having to log in to Skydemon and reconnect to stratux every time I switch screens on my iPad?
Elsewhere I found you mention an 868 aerial, do you recommend replacing the 978 one? And would it go in the same spot on the device?
Thanks again for your help 
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b3nn0
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Group: Forum Members
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This is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
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Biggles66
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+xThis is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
Cheers! Settings seem to be ok. I have already set the IP to 192.168.1.1 as otherwise the unit didnt seem to show any FLARM buttons or options. Apologies, obviously I am unclear what NMEA or Air Connect are exactly, only that you mention it is more stable. From what you state above, if I dont have an Air Connect module, should I just forget about it and continue with GDL90 connection? Although, I did now change the setting in Skydemon and selected connect via Air Connect (even though I dont have one) and it still seems to work the same way, this time with a large circle around my own position.
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techie59
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Group: Forum Members
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+xThis is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
First, thanks a lot for all this wonederful work.
I have updated the ROM with this EU version. Do I need to update the IP Address even though I will use it with the GDL90 protocol in SKydemon? Even though it is in that mode, will it gather the FLARM information?
Why changing the IP address makes a difference (for my understanding)?
REgards,
Etienne (who can't wait to fly again)
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TouchTheSky
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Group: Forum Members
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+x+xThis is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
First, thanks a lot for all this wonederful work.
I have updated the ROM with this EU version. Do I need to update the IP Address even though I will use it with the GDL90 protocol in SKydemon? Even though it is in that mode, will it gather the FLARM information?
Why changing the IP address makes a difference (for my understanding)?
REgards,
Etienne (who can't wait to fly again)
Etienne, It is my understanding that you don't need to change the default IP address (192.168.10.1) if you plan to continue using GDL90 with SkyDemon - it will continue displaying FLARM targets. Changing the IP to 192.168.1.1 simply indicates to SkyDemon that the FLARM NMEA protocol is used instead.
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TouchTheSky
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Group: Forum Members
Posts: 153,
Visits: 4.5K
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+x+x+xThis is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
First, thanks a lot for all this wonederful work.
I have updated the ROM with this EU version. Do I need to update the IP Address even though I will use it with the GDL90 protocol in SKydemon? Even though it is in that mode, will it gather the FLARM information?
Why changing the IP address makes a difference (for my understanding)?
REgards,
Etienne (who can't wait to fly again)
Etienne, It is my understanding that you don't need to change the default IP address (192.168.10.1) if you plan to continue using GDL90 with SkyDemon - it will continue displaying FLARM targets. Changing the IP to 192.168.1.1 simply indicates to SkyDemon that the FLARM NMEA protocol is used instead. Etienne, just a minor clarification to my reply above, the options are: - 192.168.10.1: only GDL90 can be selected and used in SkyDemon
- 192.168.1.1: both GDL90 and FLARM-NMEA can be selected and used in SkyDemon
GDL90 is labeled under Third-Party Devices as "GDL90 Compatible Device" FLARM-NMEA is labeled under Third-Party Devices as "FLARM with Air Connect", the "Air Connect Key" can be ignored for Stratux Europe
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techie59
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Group: Forum Members
Posts: 16,
Visits: 3
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+x+x+x+xThis is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
First, thanks a lot for all this wonederful work.
I have updated the ROM with this EU version. Do I need to update the IP Address even though I will use it with the GDL90 protocol in SKydemon? Even though it is in that mode, will it gather the FLARM information?
Why changing the IP address makes a difference (for my understanding)?
REgards,
Etienne (who can't wait to fly again)
Etienne, It is my understanding that you don't need to change the default IP address (192.168.10.1) if you plan to continue using GDL90 with SkyDemon - it will continue displaying FLARM targets. Changing the IP to 192.168.1.1 simply indicates to SkyDemon that the FLARM NMEA protocol is used instead. Etienne, just a minor clarification to my reply above, the options are: - 192.168.10.1: only GDL90 can be selected and used in SkyDemon
- 192.168.1.1: both GDL90 and FLARM-NMEA can be selected and used in SkyDemon
GDL90 is labeled under Third-Party Devices as "GDL90 Compatible Device" FLARM-NMEA is labeled under Third-Party Devices as "FLARM with Air Connect", the "Air Connect Key" can be ignored for Stratux Europe Thanks for the clarification but it now raises a small doubt.I understand the difference between the 2 IP address but which one should be used to have both the ADB-S in and the FLARM at the same time?
Thanks,
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TouchTheSky
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Group: Forum Members
Posts: 153,
Visits: 4.5K
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+x+x+x+x+xThis is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
First, thanks a lot for all this wonederful work.
I have updated the ROM with this EU version. Do I need to update the IP Address even though I will use it with the GDL90 protocol in SKydemon? Even though it is in that mode, will it gather the FLARM information?
Why changing the IP address makes a difference (for my understanding)?
REgards,
Etienne (who can't wait to fly again)
Etienne, It is my understanding that you don't need to change the default IP address (192.168.10.1) if you plan to continue using GDL90 with SkyDemon - it will continue displaying FLARM targets. Changing the IP to 192.168.1.1 simply indicates to SkyDemon that the FLARM NMEA protocol is used instead. Etienne, just a minor clarification to my reply above, the options are: - 192.168.10.1: only GDL90 can be selected and used in SkyDemon
- 192.168.1.1: both GDL90 and FLARM-NMEA can be selected and used in SkyDemon
GDL90 is labeled under Third-Party Devices as "GDL90 Compatible Device" FLARM-NMEA is labeled under Third-Party Devices as "FLARM with Air Connect", the "Air Connect Key" can be ignored for Stratux Europe Thanks for the clarification but it now raises a small doubt.I understand the difference between the 2 IP address but which one should be used to have both the ADB-S in and the FLARM at the same time?
Thanks, Both GDL90 and FLARM-NMEA are protocols that carry both types of traffic (ADS-B and FLARM) at the same time. Therefore you will always receive all traffic no matter which one of the two IPs you select. The IP selection only has a consequence on which protocol you are able to use in SkyDemon. GDL90 seems to be the more sophisticated one but FLARM-NMEA has also some benefits (e.g. how bearingless targets are displayed).
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techie59
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Group: Forum Members
Posts: 16,
Visits: 3
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+x+x+x+x+x+xThis is most likely what your settings should look like for SD: (If you want to use the Flarm-NMEA protocol, the IP Address additionally needs to be 192.168.1.1, but that's optional. Get the rest working first). Disable AHRS if you don't have one in your Stratux. If you have an ADS-B out equipped airplane, enter your transponders HEX in the top right.
To get the Flarm-NMEA option in SkyDemon, you, of course, need to enable that in the Settings "FLARM via Air Connect". But as I said, that's optional.
Yes, I recommend using an 868Mhz antenna instead of the 978. Reception range will be better.
First, thanks a lot for all this wonederful work.
I have updated the ROM with this EU version. Do I need to update the IP Address even though I will use it with the GDL90 protocol in SKydemon? Even though it is in that mode, will it gather the FLARM information?
Why changing the IP address makes a difference (for my understanding)?
REgards,
Etienne (who can't wait to fly again)
Etienne, It is my understanding that you don't need to change the default IP address (192.168.10.1) if you plan to continue using GDL90 with SkyDemon - it will continue displaying FLARM targets. Changing the IP to 192.168.1.1 simply indicates to SkyDemon that the FLARM NMEA protocol is used instead. Etienne, just a minor clarification to my reply above, the options are: - 192.168.10.1: only GDL90 can be selected and used in SkyDemon
- 192.168.1.1: both GDL90 and FLARM-NMEA can be selected and used in SkyDemon
GDL90 is labeled under Third-Party Devices as "GDL90 Compatible Device" FLARM-NMEA is labeled under Third-Party Devices as "FLARM with Air Connect", the "Air Connect Key" can be ignored for Stratux Europe Thanks for the clarification but it now raises a small doubt.I understand the difference between the 2 IP address but which one should be used to have both the ADB-S in and the FLARM at the same time?
Thanks, Both GDL90 and FLARM-NMEA are protocols that carry both types of traffic (ADS-B and FLARM) at the same time. Therefore you will always receive all traffic no matter which one of the two IPs you select. The IP selection only has a consequence on which protocol you are able to use in SkyDemon. GDL90 seems to be the more sophisticated one but FLARM-NMEA has also some benefits (e.g. how bearingless targets are displayed). OK great now I get it. :-)
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b3nn0
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Group: Forum Members
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Then everything is perfect. You don't need an AirConnect. The Stratux implementation just pretends to be one. This is, IMO, the better option than GDL90, et least for SkyDemon, as SkyDemons GDL90 implementation seems to be a bit wonky from time to time.
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Biggles66
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Group: Forum Members
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+xThen everything is perfect. You don't need an AirConnect. The Stratux implementation just pretends to be one. This is, IMO, the better option than GDL90, et least for SkyDemon, as SkyDemons GDL90 implementation seems to be a bit wonky from time to time. ok, got it... better go and try it out in the wild then, rather from my apartment...
thx again!
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Alf
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Hi b3nno,
I had several flights last weekend with Stratux Europe Edition 1.5b2-eu008 BETA, 868 antenna for FLARM, SD as software. I am really impressed, it works fantastic! Thank you for all your work on this!
BR, Alf
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schoberh
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+xHi b3nno,
I had several flights last weekend with Stratux Europe Edition 1.5b2-eu008 BETA, 868 antenna for FLARM, SD as software. I am really impressed, it works fantastic! Thank you for all your work on this!
BR, Alf Hi everybody! I purchased a Stratux box (currently image stratux-v1.5b2-eu010). Do I need to purchase this "FLARM Decoding Subscription" in order to get FLARM traffic displayed by Skydemon? https://www.skydemon.aero/store/flarmdecoding.aspx
Thanks!
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Tim Dawson
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Contrary to what is written above, we would recommend using GDL90 as the best protocol when a device supports it.
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efrenken
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Tim,
Why do you recommend GDL90 as the best protocol? Since I‘ve been using the protocol b3nn0 has described above I don‘t have any gaps within my logs and I get the ring around my position for non-ADS-B traffic. By using the GDL90 protocol I get a gap every 3 mins in my logs and no ring.
Eric
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Tim Dawson
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It's just generally a more robust protocol, and it can receive UAT weather and encrypted FLARM messages too. This may not be applicable for you, of course. What sort of device are you using SkyDemon on where you're seeing gaps in recording?
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b3nn0
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Hi Tim, this happens to many users on iOS and Android with the Stratux. I have debugged it thoroughly on the Stratux side and am fairly convinced that it is some wonkyness in SDs GDL90 implementation. I had a lengthy discussion about it with your support (Hannah, iirc), but it did not look like SD is willing to change something.
On the Stratux side, I implemented a workaround by sending the GDL90 hearbeat message much more often, if enabled in the settings, which seems to reduce the gaps quite a bit to 2-3 per hour, instead of 20-30 per hour.. Feel free to check my communication with Hannah from support for more detail of my analysis. In short, it seemed like the UDP connection has some lags from time to time, especially when the phone is under load. The RaspberryPi/Stratux network stack then seems to try to correct that by multiple retransmissions that are received in a short time on Android/iOS. That seems to confuse SD, indicating a short connection drop of 2-3 seconds and drawing a gap in the log later. During flight, it can only be noticed by the vertical radar screen shortly dropping out and then being regenerated. Note that errors like this are to be expected for UDP connections, at least it's written in the RFC that applications should be tolerant to that.
I have cross-checked this with a different GDL90 client implementation, which just checks the checksums and dumps the information in real-time. This way, it was easy to see the gaps and retransmissions at a similar rate that SD drops out.
Also, I used two devices running SD, both connected to the same Stratux, and both show these gaps, but at different times. So the packet content is certainly correct - it's just the transmission which SD assumes is interrupted.
Note: Feel free to contact me directly if you need more info - I'm the maintainer of Stratux Europe Edition.
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efrenken
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Tim,
I use SD (newest Beta release) on an iPad Pro with the recent iOS. I‘ve experienced exactly what b3nn0 has written in his post above.
Eric
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Tim Dawson
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I don't suppose either of you have a SkyEcho or SkyEcho 2 product around? Those are very popular, use GDL90 and we have never observed any problems with them. Then again, they are not built on top of a Raspberry PI, I don't know if that makes a different to the networking stack.
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Alf
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Hi Tim,
I use SkyEcho 2 (mainly) and Stratux for testing purposes with the same Android devices. I could observe the mentioned drop outs also with SkyEcho 2, but only on older devices. I use an older Samsung Note 4 in the Front Cockpit and a new Xiaomi Mi Max 3 in the rear Cockpit. The Xiaomi had no drop outs with SkyEcho 2 and SD, but the Samsung any few seconds, which was very annoying.
When using Stratux, the drop outs were worse, and could even be observed on the new Xiaomi. This improved after the latest Stratux files from b3nn0.
Hope that helps,
Best regards,
Alf
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pilot-byom
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I use SkyEcho2 on a frequent basis and it also shows the drop outs with SD (running on iPad). Stratux is definitely worse, but in principle both shown the same issue with Skydemon (and btw i.e. ForeFlight does not suffer with the same setup).
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