I've installed, as per instructions on the website, 2 different AHRS chips from Stratux. Each one does not allow the GPS to Lock anymore. It sees 1 maybe 2 statellites without any locks. I have update the firmware to the latest (stratux-v1.6r1-eu029-94438ef6-us.img) . The GPS is a stratux GPYes, and the board is a Raspberry PI 3 model B V1.2. As soon as I remove the chip, I get 12-13 satellites and a lock for the solution. With the chip, the fan does cycle around 50-52 degrees, and No AHRS. Any help would be appreciated.

Ron

Hi,

I've been using a Stratux for a while, recently the 978 stopped receiving anything, I purchased a new antenna+SDR kit on Amazon.

This time the connector to the 978MHz SDR is different than the one for the 1090MHz, but for the life of me I can't get the 978 connector to attach to the SDR itself. It's a tiny tincy connector, I don't want to apply to much pressure as not to break the thing.

Any advice? What am I missing?

Says the question in title. Stratux build guide on the website still says 3b.

Cooling fan on my Stratux ADSB not working. I have replaced the raspberry pi 3B, AHRS 2.0 and fan controller, Fan and SD Card. I get solid red and green light but fan does not come on, even when unit gets hot.

I am wondering if i tape an airtag to my unit will it interfere. I am scared to lose it

All,

First, this product has been great in a little bare-bones aircraft I fly. It's great to integrate GPS and AHRS into foreflight in an airplane whose most advanced avionics are UAT ADS-B out and a VHF radio.

My problem is trying to receive ADS-B. Sometimes I only seem to pick up local traffic if it is within a mile or two, which makes it largely useless, or it'll clearly hiccup and stop receiving ADS-B altogether for a few minutes or more. Other times, I get tons of traffic for miles in all directions. I'm unsure if the difference in reception is due to TIS-B or ADS-R coverage at my local class C.

As for weather, I rarely get ANY weather at all. There are a few FIS-B towers within 100 miles of my location per http://towers.stratux.me/, but I will only get weather if I'm within a few miles of one of them which is virtually never.

I purchased the following kit with two nooelec NESDR Nano 2+ receivers and have used the larger antennas: https://www.amazon.com/Dual-Band-Foreflight-FlightAware-Software-Applications/dp/B01K5K3858

How can I go about verifying the radios are working properly? My limited understanding of SDRs are that they can have a ppm value for adjust tuning. They claim the ppm is < 1, but how can I verify that is set properly? Are there any suggestions to improve reception? Are there any other radios others recommend that seem to work great for them?

Thanks in advance for you help

Hi Stratux dev-team,

Many years ago we had devices like KNS-80 allowing RNAV using VOR/DME. FMS use DME/DME navigation (both of them impractical with Stratux), however an RNAV VOR/VOR solution should be doable using the VOR location database (can be ID'd through Morse code) and radial (crossing 2 radials minimum)

With all the GPS denial of service ongoing in many parts of Europe, providing the users with another way to see the location of the ship not using GPS would be a great way to bring more safety to users of the Stratux. It could "simulate" a GPS position with poor accuracy when in reach of 2 VORs with not so good accuracy but probably better than no navigation at all.

bmartin_adx

Hi, I'm new to reddit. I just tried 2 different Stratux units while airborne today, one with internal GPS and the other with external GPS. Neither could resolve a GPS position. I looked at 192.168.10.1 and no satellites were found. Both units worked fine 2 weeks ago. Using stratux-v1.6r1-eu028-32d5e58b-us.img. I realize there is another build, but as I said, both worked 2 weeks ago. Any ideas?

Update: Still no GPS position. I flashed build stratux-v1.6r1-eu029-94438ef6-us.img,
192.168.10.1, status is :

GPS hardware: USB u-blox 7 GNSS receiver (NMEA protocol)

GPS solution: No Fix

GPS satellites: 0 in solution; 1 seen; 1 tracked. Thanks

When I was in flight I found I was not seeing traffic and that my position was not being updated. My phone was connected to my stratux. I use Flight Plan Go. The device was a crewdogs build. The only changes I have made was updating to the latest US firmware, v1.6r1-eu29-us. I did forget to change my stratux back from AP+Client mode to just AP mode. While this wasn't a huge issue since I was VFR and it was a nice day, it was cause for concern.
Is there something I can look for as to why the stratux failed? I have it on right now at home and am monitoring it and it seems to be working as intended. It is functioning in AP only mode. It has been up for 20 minutes so far and states it has no fix. It as a view of the western sky and claims it has only seen and tracked two satellites. However flight plan go does have me in the correct position. Although it may have fallen back onto my phones GPS, that I'm not sure. I know I am not providing much information however I'm not even sure what to provide.

Hello! Trying to troubleshoot my Stratux build. So far not in a case but I've got everything hooked up, and it's all working but I get the message:
You have enabled more protocols than you have receivers for. You have 1 receivers, but enabled 2 protocols. Please disable 1 of them for things to work correctly. For now we are only using 1090ES.

They're definitely both connected, since I'm seeing ADSB targets pop up when airlines fly overhead (1090) and the 978 flashes when I plug it in then goes solid red... I'm going to try a different power supply but I'm doubtful since it's otherwise working.

I've tried a couple of USB ports, and many reboots. Any thoughts would be appreciated!

Just flew with my stratux for the first time, it recorded the whole fight, but seemed to stop recording berifly on the ground between touch and go’s. Is this normal? It had “no towers” in the corner the whole flight, is that normal?

With all the recent GPS spoofing events, we were wondering how the Stratux handles spoofing events. I'm sure it depends on the GNSS receiver attached, but is it able to monitor and switch to a different constellation automatically? Is there a way to manually select which GNSS the Stratux is using? We were interested in using a different GNSS on our EFBs than what the aircraft was using. That way we would could actively compare and hopefully be aware if a spoofing event was taken place.

Hello all,

Today I flashed the stratux-v1.6r1-eu029-94438ef6-us.img to a new SD card and when it boots up, it sees 15+ satellites but will not get a fix - 0 in solution. The previous SD card had eu028-us and when I put that back in the unit, it sees the same 15+ with 9 or more in solution.

This unit is about 3 years old and I built it myself with parts from Amazon. I have not had any issues with it until flashing the eu029-us version.

I know I am missing something easy but any help would be greatly apprecaited.

Hardware
- Raspberry Pi 3B
- Stratux GPYes 2.0 u-blox 8 USB GPS Unit
- Stratux 1090ES & UAT - Radios (Low Power UAT) and High Gain Antennas
- Stratux AHRS 2.0 - Raspberry Pi Sensors and Fan Controller - ICM-20948+BMP280

I’m using a stratux connected to my iPad running ForeFlight in my plane and I’m having an issue with a gonstant “ghost” traffic target mirroring my position. It’s a TIS-B target and it only is displayed when I’m not using anonymous mode on my tail beacon. I’ve been in contact with uavionix and they’ve said it might be an issue with the stratux, planning on trying a sentry to see if I can replicate the issue but I wanted to see if anyone had a potential fix.

Question asked a million times, but everyone has different opinions and I'd like to hear yours. I'm a student pilot, getting ready to solo and I haven't been using any external equipment so far.

My instructor suggests I get an assembled stratux, but 7-800$ is too much for me at the moment, so I thought I'd build one! ... For those of you who have been using one, would you recommend it? Or should I save up and get a "ready to go" one?

Also, I'm gonna be using IFLY EFB since I don't own apple products and really don't want to get any.

Any, literally any advice and recommendations are very welcome! Thank you

Hi Newbie here. I am running a USB to Serial adapter (TU-S9) to my EFIS for traffic/WX. The EFIS is set to 38400 baud. It is working, can see traffic. When I set EFIS to 115200 baud it does not work.   I would like to increase the Stratux BAUD rate.  Is that possible? NOTE the EFIS manufacture GRT Avionics supplies a patch to make the TU-S9 work (file name: update-stratux-tu-s9).

I'm planning to build a Stratux with a Pi 3 only for the GPS. I might in the future add the NooElec Nano 2+ for ADS-B support. But I don't currently need it since I'm in Canada. Will Stratux work if I only have a GPS plugged in?

Hey guys. I just got my Stratux device and AHRS is not workng on foreflight. i tried updates.stratux.me/builds/dangerzone but it's giving some 404 error. Can anyone help me out with this?

So I have a CrewDog from about 4 yrs ago. Works well. I did not build it but understand the construction and the software is on SD card. I recall I have Version: SW 1.6r1.

I read there was an update from Mid 2023. Not sure I need it. Should I update and if so how. I read you don't have to reimage the SD card.... I assume you do it through WiFi? Thanks in advance for the info and advice.

I am try to connect Stratux to GRT Horz 10.1 EFIS for Traffic and Weather.

There is a Stratux branded board "Stratux Serial Adapter (RS-232/TTL/RS-485) CP2102"

It looks Identical to all the other CP2102 boards.... at 80% less. Not to be cheap but is the "Stratux" board programed differently?

The other option GRT avionics suggest is the TU-S9 USB to serial adapter, but requires a PATCH to loaded onboard the Raspberry Pi. They supply that. Apparently the "Stratux" USB/R232 board requires no patch.

ALSO how to you confiture the three switches. Two of them are dip switches 1 and 2. Another is a slide switch with no marking... I think from pictures Dip 1 ON, Dip 2 OFF and the slide switch is either towards near edge of board or slid inboard... Not sure about this.

When i first built this stratux i was able to power it up and connect to my ipad with no issues. Now, 2 months later, the stratux doesn't even appear as a Wifi option, thereby not allowing any connection to my ipad or iphone. I've tried different power sources and even used the AC power cable that came with RP3b + , still no joy... both lights do come on and are steady... tried everything i know to do.. my last option is to reflash the SD card... then if no joy, a new RP3 card...anyone have a similar experience..... thanks Ron

Has anyone used the Anker Nano Power Bank with Built-in Foldable USB-C Connector, 5,000mAh? It looks like it would be perfect since my stratux has a USB C.

Hi,
I am planning to Build a Stratux (EU, with 2 RTL SDRs, AHRS, GPS).
As the plane I am flying is a little bit space restrained, I need to make things fit.
I designed an 3D Printed iPad mount already, which I want to Modify to directly include the Stratux.
Is this a option?
The antennas will be facing the outside and it is directly mounted against the window.
Would this work for recieving the signal? Would I need an external GPS Antenna or does Stratux GPYex 2.0 provide sufficient reception?

Also a software question: Will I be able to use the stratux GPS with my non Cellular (thus non GPS) iPad?
Thank you for your help!

Just wanted to show off a Stratux build I did with a Pi Zero, it's got a 5000Mah battery which gives it about 5 1/2 hours of runtime, if you were to use 2 Nano 2's instead of a nano 2 & the stratux UAT you'd only get about 3 1/2 hours. Currently I have no AHRS or GPS in it but I hope to add that in soon(once the parts arrive). Case Doesn't have a fan either but since it's winter I don't have to worry about it but I'll probably add a fan in the future.

Definitely not the cheapest build, you could probably get the cost down more by substituting more cost effective parts, but I do like the space savings and compactness that using a Pi Zero brings.

Cost:

USB C to USB C Female - $9

Pi Zero UPS - $28

Pi Zero 2W - $20

USB HAT - $10

PWR btn - $2

Nano 2 Plus - $36

Stratux UAT - $40

5000 Mah battery - $15

5dBi Antennas - $15

Filament costs: $5??

Total: $180 + Tax

Here are some pictures:

https://preview.redd.it/0eei7547m1cc1.jpg?width=3932&format=pjpg&auto=webp&s=93054fcb88e6dfda81941728abda9c6cf43c63ca

Side profile

Internals

https://preview.redd.it/z7um9a47m1cc1.jpg?width=3938&format=pjpg&auto=webp&s=1ae3b3f0422c459d8dc089f7dc16476d7e5e60de

Comparison to a Stratux Case design

Comparison to a Raspberry pi 4 in a case

https://preview.redd.it/csivw847m1cc1.jpg?width=3985&format=pjpg&auto=webp&s=9b8d594385b2d15ad42e1066d1a9bdc5429945d0

​

Can somebody explain to me what this setting does? I fiddled around with my stratux today since OGN and FLARM reception were pretty bad.

I rearranged the canceling so 868 and 1090 cables did not cross each other anymore. It got a little better. However, not really good.

Then I found this setting "OGN Transmission via I²C/GPIO HAT", disabled it and got a significant noise reduction. Any idea why? I mean I did not plan to send out OGN Signals (yet).

Thanks everyone

I've built a Stratux for my kid (16) who's about to start flying lessons. Looking around for 3D models, I like the overall design of the "antennas on the bottom/side" version of case. Some I see have a secondary piece with a copper strip to insulate the GPS from the SDRs further.

So my question is: For typical applications, is it normal to have the ADSB unit horizontal, so the internal GPS unit is facing up, or does anyone fly around with it vertical, with the suction cups on a window? Is that even practical in a Cesna 172 and Stratux?

I've been toying with a design where the GPS antenna is mounted up top (i.e. the other side of the Pi) and a short USB extension cord down the right side to where the ports are. It also has a piece of copper tape between the GPS and Pi to provide some noise isolation.

And while I'm asking questions... What about the SDR requires a bright white light to be on?Thanks!

Steve

Hi!

So I love my Stratux for picking up traffic and weather information but its GPS is wildly inaccurate. It will be fine for a few minutes, but then teleport me to Canada 50 nm away. I have tried different mounting points in the C172S, but it just doesn’t work.

Recently, I started disconnecting the WiFi on my iPad, then every few minutes reconnecting it to see the latest updates on weather since the plane has ADS-B I can monitor there.

My Stratux also never has accurate pressure readings, going from 10,000 to -5,000 when I am at 3,500.

Is there a way for me to retain all the features of the Stratux, but force Foreflight to use the iPad GPS? Example: displaying ADS-B traffic in Foreflight but not using the Stratux’s GPS position.

I bought a CrewDogs Electronic Stratux in 2021; it would occasionally drop off the signal to my iPad and then connect again with intermittent issues. I decided to flash the SD card with the latest update from the Stratux website. I flew with it for 2 hours, and it worked fine, but on my second leg, the iPad would see the Wifi signal from the Stratux but could not connect to the unit. I flashed the SD card again, and it worked just the same. It was fine on my first leg, but on the second, it would not connect to my iPad.