Stratus 3i is not working

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Eric Jessen

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Aug 12, 2019, 4:20:31 PM8/12/19
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Just got my plane back from shop after installing the Stratus 3i.  I verified that the 3i is set to open ADS-b, which is the GDL-90 setting.  The tablet is connected to the 3i, but when I turn on the I/O, I get an error and no data flows.  I do have the 4000 port setting.  The error says something about the port is already connected.  So, I am going to delete and reload Avare.

I will keep you all posted.  Let me know if I am missing something here.

Bruce & Alice Brooks

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Aug 12, 2019, 4:52:00 PM8/12/19
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One thing to check is the 3i will not provide info until it has a gps fix.  I have the stratus esg transponder and I have to wait until it displays the lat/long before I can connect to the 3i.

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John W SBA

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Aug 12, 2019, 5:08:59 PM8/12/19
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> error says something about the port is already connected.

Maybe the Android device running Avare is connecting to another WiFi
device? In that case, Avare won't be able to connect to the GPS/ADS-B
In device (3i in your case). To check for that, go to the Android
settings->Connections->Wi-Fi (or whatever it's called on your version of
Android). If it's connected to something other than your GPS/ADS-B In
device (3i), tap on that device in the list and disconnect it (how this
works varies with Android version), then connect the 3i after you're
sure it's completely up and running.

Eric Jessen

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Aug 12, 2019, 9:12:55 PM8/12/19
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The tablet is definitely connected to the 3i.  No other Wifi in the area.

Eric Jessen

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Aug 12, 2019, 9:14:00 PM8/12/19
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Yes, the ESG has a fix and the tech was able to use another app with it.


On Monday, August 12, 2019 at 2:52:00 PM UTC-6, kona...@bbkona.com wrote:

One thing to check is the 3i will not provide info until it has a gps fix.  I have the stratus esg transponder and I have to wait until it displays the lat/long before I can connect to the 3i.

 

From: apps4a...@googlegroups.com [mailto:apps4a...@googlegroups.com] On Behalf Of Eric Jessen
Sent: Monday, August 12, 2019 1:21 PM
To: Apps4Av Forum
Subject: [Apps4Av] Stratus 3i is not working

 

Just got my plane back from shop after installing the Stratus 3i.  I verified that the 3i is set to open ADS-b, which is the GDL-90 setting.  The tablet is connected to the 3i, but when I turn on the I/O, I get an error and no data flows.  I do have the 4000 port setting.  The error says something about the port is already connected.  So, I am going to delete and reload Avare.

 

I will keep you all posted.  Let me know if I am missing something here.

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Jeffrey Ross

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Aug 13, 2019, 10:19:22 AM8/13/19
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On Monday, August 12, 2019 at 4:20:31 PM UTC-4, Eric Jessen wrote:
  The error says something about the port is already connected.  So, I am going to delete and reload Avare.
.
Eric,

The key item here is the error about the port is already connected.  Although you didn't say, I'm assuming this error is coming from Avare and if I'm correct what this is telling me is that there is another program that has already grabbed port 4000 on your tablet, maybe you have other ADS-B capable program running on your tablet which hasn't released the port yet?

If you already ran a program, maybe fltplanGo? you will need to make sure it is completely exited, not simply go back to the home screen and start the other application, If you are unsure you can go to the Settings screen (on the tablet itself) then look for a menu item called "Apps" or "Applications" and look for the application(s) that you might have run that could grab the port, select that application and choose "force stop".

Also make sure you are not using the old Avare I/O application, the functionality required by almost all users has been included into the main Avare application.

A little simplified technical overview as to what port 4000 is and why the in use error is key.

The ADS-B receiver will send the data it receives to anybody that will listen to UDP port 4000 (UDP is a protocol that runs on top of IP in a similar fashion to TCP and there are ~65,000 ports available).  Depending upon your ADS-B unit it can be sent to specific hosts (eg tablet, phone) or to everybody connected on the wifi network.  So what this means is your tablet, phone, computer, whatever must be setup to listen on port 4000 and only one program at a time can listen on port 4000.

The next question is how does the ADS-B receiver know who is listening so that it the sending traffic doesn't fail?  That's the beauty and the limitation of UDP you don't care if the packet actually reaches any destination, nor does the sender care if it is even processed.

Jeff

Eric Jessen

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Aug 13, 2019, 2:33:28 PM8/13/19
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I deleted Avare and reinstalled it to wipe out any port information.  I have no other apps that reach out to ADS-b in anyway.  I waited until the ESG had a solid fix, enabled the wifi connection to the 3i, had 4000 set for the port, and enabled the connection in the IO tab of avare.  It said connected and creating socket on port 4000.  That is where it just sits.  No data comes across.

Jeffrey Ross

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Aug 13, 2019, 4:34:41 PM8/13/19
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Stupid question, are you sure you are connected to the correct WiFi SSID?

Also there were some discussions about a month or two back about Android and how it puts some Network stuff to sleep, I think it was regarding some relatively modern Samsung devices, I think Galaxy S8 and maybe newer devices, the discussions went into how to stop the behavior.

Jeff

Eric Jessen

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Aug 13, 2019, 7:00:50 PM8/13/19
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I am definitely connected to the 3i via Wifi as far as the tablet is concerned.

Jeffrey Ross

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Aug 13, 2019, 8:51:55 PM8/13/19
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Eric,

The way data is sent with the GDL-90 protocol over WIFI is literally "spray and pray" meaning that you ADS-B unit will just blindly transmit the data to everybody connected to your WIFI connection without regard to who actually is listening.

I question if the 3i is actually in GDL-90 mode and/or if it is using port 4000.  If you are somewhat computer savvy and have a laptop computer available to you we can actually verify what if anything is coming from your 3i unit and I can provide you with some basic instructions.

Jeff
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Eric Jessen

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Aug 14, 2019, 9:53:34 AM8/14/19
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Jeff,

The 3i was set to Open ADS-b mode.  The tech showed me on his Stratus Horizon Pro App.  I am unaware of any other settings required for the 3i itself.  Does it have a setting for port 4000??

On Tuesday, August 13, 2019 at 6:51:55 PM UTC-6, Jeffrey Ross wrote:
Eric,

The way data is sent with the GDL-90 protocol over WIFI is literally "spray and pray" meaning that you ADS-B unit will just blindly transmit the data to everybody connected to your WIFI connection without regard to who actually is listening.

I question if the 3i is actually in GDL-90 mode and/or if it is using port 4000.  If you are somewhat computer savvy and have a laptop computer available to you we can actually verify what if anything is coming from your 3i unit and I can provide you with some basic instructions.

Jeff

On 8/13/19 7:00 PM, Eric Jessen wrote:
I am definitely connected to the 3i via Wifi as far as the tablet is concerned.

On Tuesday, August 13, 2019 at 2:34:41 PM UTC-6, Jeffrey Ross wrote:
Stupid question, are you sure you are connected to the correct WiFi SSID?

Also there were some discussions about a month or two back about Android and how it puts some Network stuff to sleep, I think it was regarding some relatively modern Samsung devices, I think Galaxy S8 and maybe newer devices, the discussions went into how to stop the behavior.

Jeff

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Jeffrey Ross

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Aug 14, 2019, 9:59:02 AM8/14/19
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Eric,

I'm not familiar with the stratus unit so I can't help you with the programming of the unit. What I can do is help you determine if it is in fact configured the way you believe it to be, and right now I am suspect of it's configuration settings.

Jeff

Eric Jessen

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Aug 14, 2019, 12:28:43 PM8/14/19
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So here is the message I get on the IO page of Avare.

Started!
Starting WIFI Input
WIFI Input :Connected
Creating socket to listen on port 4000

and that is where it sits.  Nothing else happens.


On Monday, August 12, 2019 at 2:20:31 PM UTC-6, Eric Jessen wrote:

Jeffrey Ross

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Aug 14, 2019, 12:29:56 PM8/14/19
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I strongly suspect the Stratus 3i is NOT transmitting on port 4000 and/or is not on GDL-90 mode.

Jeff
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Eric Jessen

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Aug 14, 2019, 2:00:29 PM8/14/19
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I was not aware that the port had to be set on the transmitting ADS-b hardware.  Not sure how to set that in the 3i.  I will check with customer service.  How is this done with StratuX?


On Wednesday, August 14, 2019 at 10:29:56 AM UTC-6, Jeffrey Ross wrote:
I strongly suspect the Stratus 3i is NOT transmitting on port 4000 and/or is not on GDL-90 mode.

Jeff

On 8/14/19 12:28 PM, Eric Jessen wrote:
So here is the message I get on the IO page of Avare.

Started!
Starting WIFI Input
WIFI Input :Connected
Creating socket to listen on port 4000

and that is where it sits.  Nothing else happens.

On Monday, August 12, 2019 at 2:20:31 PM UTC-6, Eric Jessen wrote:
Just got my plane back from shop after installing the Stratus 3i.  I verified that the 3i is set to open ADS-b, which is the GDL-90 setting.  The tablet is connected to the 3i, but when I turn on the I/O, I get an error and no data flows.  I do have the 4000 port setting.  The error says something about the port is already connected.  So, I am going to delete and reload Avare.

I will keep you all posted.  Let me know if I am missing something here.
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Jeffrey Ross

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Aug 14, 2019, 2:13:29 PM8/14/19
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The stratuX (not stratus) software by default uses port 4000 so nothing needs to be changed.

Keep in mind that you will not get FIS-B, TIS-B, or ADS-R data while on the ground unless you are very close to a transmitter. You will be able to pick up ADS-B out equipped aircraft while on the ground.

I'm assuming the unit will provide a GPS position source so at the very least you should be able to set Avare to external for the position source of your stratus is sending the position data.

Jeff

Ed Vargas

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Aug 14, 2019, 5:27:28 PM8/14/19
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I see you said earlier "The 3i was set to Open ADS-b mode.  The tech showed me on his Stratus Horizon Pro App." however, there is an ios app that you run from an iphone or ipad to access the stratus 3i config to make sure you have GDL90 enabled.  At least, that's what I've been told by the Stratus folks.

Ed

On Monday, August 12, 2019 at 4:20:31 PM UTC-4, Eric Jessen wrote:

Eric Jessen

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Aug 14, 2019, 5:33:47 PM8/14/19
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Correct, and I had the installer use his iPad to set it and he showed the setting to me.

John W SBA

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Aug 14, 2019, 5:45:50 PM8/14/19
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> WIFI Input :Connected

That doesn't tell you what the Android device's WiFi Input is connected
to. This information would be in the Android device Settings.

> Creating socket to listen on port 4000

Possibly the 3i isn't sending on Port 4000, though that's the industry
default for most aviation GPS/ADSB receivers so possibly also for the
3i. Clearly something to determine for certain.

> and that is where it sits. Nothing else happens.

Another thing you could try to find out, is whether the 3i sends any
data before GPS acquisition. If it's working with your other app, my
guess is that's probably not the problem though.

>> error says something about the port is already connected.

Have you definitively established that there's not another app or device
using Port 4000 and thus generating that error?

Barrett Thompson

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Aug 14, 2019, 5:47:31 PM8/14/19
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Eric, any chance you have access to a Stratux? If so, does it receive anything different? Even if you aren't receiving TIS-B or FIS-B, with a Stratux, you should see the "heartbeat" on the i/o page. No idea if the Stratus 3i should do the same.

Barrett


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Eric Jessen

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Aug 16, 2019, 10:27:14 AM8/16/19
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I talked to Appareo support and they don't know what the Port 4000 setting is, or what it does.  They sound very supportive in terms of wanting this to work with Avare.  Perhaps we can step up the collaboration between Avare and Appareo to resolve this and get Avare listed as a compatible app.

Bruce & Alice Brooks

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Aug 16, 2019, 10:37:04 AM8/16/19
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The 3i in ‘open mode’ DOES work with Avare.  I have and do use it.  My issue is with switching it into open mode after my partners use it in FF mode.  I suggest trying to find another 3i to test with or another Avare tablet to decide which component is causing the problems you have.

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Jeffrey Ross

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Aug 16, 2019, 1:32:08 PM8/16/19
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Eric,

Again I strongly feel that you stratus is not configured for GDL90.

Regarding the (UDP) port 4000, this is the receive port that your tablet is listening on and appears to be the defacto port to receive GDL90 data on.

Because of how the protocol works it will become very obvious with some basic Network tools if the unit is actually in GDL90 mode.

Jeff

Brad Walker

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Aug 16, 2019, 1:53:04 PM8/16/19
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Here is what I would do to debug this..

Attach the Appareo to the WiFi on you computer.. Startup WireShark and tell it to listen to UDP protocol.. You should see packets on port 4000 being sent by the Appareo..

If not, then the device is not sending them out.

-brad w.

Eric Jessen

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Aug 26, 2019, 10:54:03 AM8/26/19
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Well guys, here is where I stand.  I had a friend load Stratus Horizon Pro on his iPad and verified the setting to Open ADS-B.  Tried Avare on both my phone and tablet with the wifi connected and there was no data streaming.  I also tried Flightplan GO using my tablet and could not get data from the 3i on that app either.  I talked to Stratus support and was told that I could exchange my 3i through Aircraft Spruce (not directly with Stratus) and the warranty would cover the hardware, but not the labor cost or shipping.  I had another friend connect to the 3i with his Foreflight and it worked fine.

Bottom line, I am getting an iPad mini and going with FF.  To anyone else thinking about installing a 3i, realize that the Open ADS-B is unreliable at best and see if you can bench test it before you spend $600 in labor to install it.

I will keep my tablet with Avare as a back up.  The iPad does not have a GPS and therefore would not work if I lose the Stratus ESG/3i for whatever reason.  I have also read that the iPads are susceptible to overheating and shutting down.

On Monday, August 12, 2019 at 2:20:31 PM UTC-6, Eric Jessen wrote:

Bruce & Alice Brooks

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Aug 26, 2019, 11:28:25 AM8/26/19
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Eric, I am very sorry you were not able to resolve the problem and got poor support from Appareo.  The 3i has several advantages over stratux and I hope your experience does not derail any efforts to provide an android method of setting it to Open Mode.  I have decided to buy an old I-phone just to run Horizon Pro for switching modes until a solution arrives.  I don’t want two sets of hardware and the expense of FF.  I really like Avare and it meets all my EFB needs with powerful functions and ease of use.

 

From: apps4a...@googlegroups.com [mailto:apps4a...@googlegroups.com] On Behalf Of Eric Jessen


Sent: Monday, August 26, 2019 7:54 AM
To: Apps4Av Forum

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Jeff H

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Nov 17, 2019, 5:35:24 PM11/17/19
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I have the same issue as Eric.
I have the Stratus 3i and I used an iPad to open the GDL-90.  I then connected my android tablet, (Samsung), to the 3i, went to Avare and selected I/O, clicked the wifi box.  The message on that screen was that it was listening on port 1368 (???), and I never got any traffic or weather.   So how and where do you set this port 4000 that everyone is talking about??   Could that be the problem in my case??

J Mena

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Nov 17, 2019, 7:29:08 PM11/17/19
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Jeff. View the ( Avare & Stratus3)  post on the forum. the new version of Avare does not have the I\O, I have it working with the stratus3i so far, I have a flight tomorrow morning and will double-check if I can pull up FIS-B 
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