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Stratux


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TouchTheSky
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KevinWolters - 3/23/2018 10:43:51 PM

Today i received my parcel from the USA! BigGrin
b‌ut unfortunately i do not receive any UAT signals.

I saw a post about this antenna:

https://www.amazon.de/dp/B072BMBXMH/_encoding=UTF8?coliid=I3RORSKO1YA0UV&colid=3GGSQDSNIAKZP&psc=0

Does this one also requires a new USB receiver? or can i just simply screw the antenna on the 978Mhz receiver?

Thanks!


I am not an antenna expert. I did however use the above 868MHz antenna from Amazon for FLARM with Stratux but when comparing it's performance with the original 978MHz antenna, there was no improvement. In fact the performance was worse ...
‌Maybe the reason is although both antennas look similar, they may be of a different type and what I learned recently is that the original Stratux 978MHz antenna is a "Bazooka" type antenna which does not require a ground plane.
‌As a result, I am using the 978MHz stratus antenna for 868MHz FLARM successfully.
‌And to your question, yes, you simply use the 978Mhz receiver for FLARM.

TouchTheSky
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SemperFi - 3/24/2018 7:05:48 AM
TouchTheSky - 3/24/2018 5:07:37 AM
 ist displayed as a resultI am not an antenna expert. I did however use the above 868MHz antenna from Amazon for FLARM with Stratux but when comparing it's performance with the original 978MHz antenna, there was no improvement. In fact the performance was worse ...
‌Maybe the reason is although both antennas look similar, they may be of a different type and what I learned recently is that the original Stratux 978MHz antenna is a "Bazooka" type antenna which does not require a ground plane.
‌As a result, I am using the 978MHz stratus antenna for 868MHz FLARM successfully.
‌And to your question, yes, you simply use the 978Mhz receiver for FLARM.

Did you measure and config the 868 MHz antenna to the SDR? Using the 978 MHz config on a 978 MHz adjusted (?) SDR with a 868 MHz antenna will give a mismatch. The gain on measuring all in new to 868 MHz is low, indeed.

Yes, I reprogrammed the 978 SDR to: stx:0:[ppm‌]
‌The ppm can be derived by using the calibration command with GSM900
‌These are the steps for both SDRs, you may use a different GSM band in NL:

‌‌kal -d 0 -s GSM900 -g 0 => available channels are displayed, select the strongest one (e.g. 45)
kal -d 1 -s GSM900 -g 0 => available channels are displayed, select the strongest one (e.g. 45)

kal -d 0 -b GSM900 -c [channel] -g 0 => ppm0 is displayed as a result
kal -d 1 -b GSM900 -c [channel] -g 0 => ppm1 is displayed as a result

rtl_eeprom -d0 -s stx:1090:[ppm0]
rtl_eeprom -d1 -s stx:0:[ppm1]
‌With this setup, FLARM will automatically select the second SDR but should the first SDR (ADS-B) fail, it will automatically use the second SDR.

Kevin Wolters
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Sorry to bother again..
I‌ don't get it. Yesterday i downloaded a fresh stratux image and installed it to my SD card.
After i got it up and running i followed to following instructions that i found on this forum:

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
‌‌
sudo raspi-config
//expand file system and reboot

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
sudo ifup eth0

//Log in using SSH to eth0 IP address
sudo su
systemctl start ntp
service stratux stop
sudo apt-get update
sudo apt-get install libconfig9
sudo apt-get install libjpeg8
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
cd /root/stratux
export PATH=/root/go/bin:${PATH}
export GOROOT=/root/go
export GOPATH=/root/go_path
cd /
rm -Rf /root/stratux
cd && git clone https://github.com/WiringPi/WiringPi.git && cd WiringPi/wiringPi && make static && make install-static
cd && git clone https://github.com/0x74-0x62/stratux.git && cd stratux && git checkout remotes/origin/devel/flarm_receiver && make && make install
//Long Wait
service stratux start

//Finnish‌‌

A‌fter the stratux start command i got the following notice:
"Warning: Unit file of stratux.service changed on disk, 'systemctl daemon-reload' recommended."

How do i know if i installed it correctly? i cannot find any changes in the software or an extra Flarm button/switch or option..

I also tried to configure my 978Mhz antenna as TouchTheSky mentioned but it keeps saying scanning base stations and nothing happens..

(‌This is my first experiënce with Raspberry so i have got a lot to learn).‌

TouchTheSky
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KevinWolters - 3/24/2018 9:49:06 AM
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
wget 
https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
Sorry to bother again..
I‌ don't get it. Yesterday i downloaded a fresh stratux image and installed it to my SD card.
After i got it up and running i followed to following instructions that i found on this forum:

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
‌‌
sudo raspi-config
//expand file system and reboot

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
sudo ifup eth0

//Log in using SSH to eth0 IP address
sudo su
systemctl start ntp
service stratux stop
sudo apt-get update
sudo apt-get install libconfig9
sudo apt-get install libjpeg8
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
cd /root/stratux
export PATH=/root/go/bin:${PATH}
export GOROOT=/root/go
export GOPATH=/root/go_path
cd /
rm -Rf /root/stratux
cd && git clone https://github.com/WiringPi/WiringPi.git && cd WiringPi/wiringPi && make static && make install-static
cd && git clone https://github.com/0x74-0x62/stratux.git && cd stratux && git checkout remotes/origin/devel/flarm_receiver && make && make install
//Long Wait
service stratux start

//Finnish‌‌

A‌fter the stratux start command i got the following notice:
"Warning: Unit file of stratux.service changed on disk, 'systemctl daemon-reload' recommended."

How do i know if i installed it correctly? i cannot find any changes in the software or an extra Flarm button/switch or option..

I also tried to configure my 978Mhz antenna as TouchTheSky mentioned but it keeps saying scanning base stations and nothing happens..

(‌This is my first experiënce with Raspberry so i have got a lot to learn).‌

The latest FLARM version requires go version 1.10. Therefore you need to use the following go commands:

‌‌wget http://storage.googleapis.com/golang/go1.10.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.10.linux-armv6l.tar.gz

‌The antenna ppm configuration is not really important, you should however eeprom the second SDR as follows:
‌rtl_eeprom -d1 -s stx:0
‌This requires to stop stratux beforehand with "stxstop"

Kevin Wolters
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SemperFi - 3/25/2018 10:06:14 AM
TouchTheSky - 3/25/2018 7:57:03 AM
KevinWolters - 3/24/2018 9:49:06 AM
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
wget 
https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
Sorry to bother again..
I‌ don't get it. Yesterday i downloaded a fresh stratux image and installed it to my SD card.
After i got it up and running i followed to following instructions that i found on this forum:

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
‌‌
sudo raspi-config
//expand file system and reboot

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
sudo ifup eth0

//Log in using SSH to eth0 IP address
sudo su
systemctl start ntp
service stratux stop
sudo apt-get update
sudo apt-get install libconfig9
sudo apt-get install libjpeg8
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
cd /root/stratux
export PATH=/root/go/bin:${PATH}
export GOROOT=/root/go
export GOPATH=/root/go_path
cd /
rm -Rf /root/stratux
cd && git clone https://github.com/WiringPi/WiringPi.git && cd WiringPi/wiringPi && make static && make install-static
cd && git clone https://github.com/0x74-0x62/stratux.git && cd stratux && git checkout remotes/origin/devel/flarm_receiver && make && make install
//Long Wait
service stratux start

//Finnish‌‌

A‌fter the stratux start command i got the following notice:
"Warning: Unit file of stratux.service changed on disk, 'systemctl daemon-reload' recommended."

How do i know if i installed it correctly? i cannot find any changes in the software or an extra Flarm button/switch or option..

I also tried to configure my 978Mhz antenna as TouchTheSky mentioned but it keeps saying scanning base stations and nothing happens..

(‌This is my first experiënce with Raspberry so i have got a lot to learn).‌

The latest FLARM version requires go version 1.10. Therefore you need to use the following go commands:

‌‌wget http://storage.googleapis.com/golang/go1.10.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.10.linux-armv6l.tar.gz

‌The antenna ppm configuration is not really important, you should however eeprom the second SDR as follows:
‌rtl_eeprom -d1 -s stx:0
‌This requires to stop stratux beforehand with "stxstop"

‌Ok, that did it, THX!, working now.
‌No FLARM traffic near though, but I'll see.
‌Q: do you have a picture of a FLARM target shown in Traffic@192.168.10.1, how are they recognized?
‌Q: Hardware//Settings@192.168.10.1 now has 978, 1090 and 868 - 978 has to be OFF?
‌Q: Status@192.168.10.1 does not show FLARM?

Thanks! i also seem to have it working.
I have got the same questions as SemperFi Smile
For the connection with SD we still have to use SkyEcho, Ilevel as a third-party device? or do we still have to change the IP and switch to Flarm as third-party?

T‌hank you for all the support!‌

TouchTheSky
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SemperFi - 3/25/2018 10:06:14 AM
TouchTheSky - 3/25/2018 7:57:03 AM
KevinWolters - 3/24/2018 9:49:06 AM
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
wget 
https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
Sorry to bother again..
I‌ don't get it. Yesterday i downloaded a fresh stratux image and installed it to my SD card.
After i got it up and running i followed to following instructions that i found on this forum:

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
‌‌
sudo raspi-config
//expand file system and reboot

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
sudo ifup eth0

//Log in using SSH to eth0 IP address
sudo su
systemctl start ntp
service stratux stop
sudo apt-get update
sudo apt-get install libconfig9
sudo apt-get install libjpeg8
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
cd /root/stratux
export PATH=/root/go/bin:${PATH}
export GOROOT=/root/go
export GOPATH=/root/go_path
cd /
rm -Rf /root/stratux
cd && git clone https://github.com/WiringPi/WiringPi.git && cd WiringPi/wiringPi && make static && make install-static
cd && git clone https://github.com/0x74-0x62/stratux.git && cd stratux && git checkout remotes/origin/devel/flarm_receiver && make && make install
//Long Wait
service stratux start

//Finnish‌‌

A‌fter the stratux start command i got the following notice:
"Warning: Unit file of stratux.service changed on disk, 'systemctl daemon-reload' recommended."

How do i know if i installed it correctly? i cannot find any changes in the software or an extra Flarm button/switch or option..

I also tried to configure my 978Mhz antenna as TouchTheSky mentioned but it keeps saying scanning base stations and nothing happens..

(‌This is my first experiënce with Raspberry so i have got a lot to learn).‌

The latest FLARM version requires go version 1.10. Therefore you need to use the following go commands:

‌‌wget http://storage.googleapis.com/golang/go1.10.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.10.linux-armv6l.tar.gz

‌The antenna ppm configuration is not really important, you should however eeprom the second SDR as follows:
‌rtl_eeprom -d1 -s stx:0
‌This requires to stop stratux beforehand with "stxstop"

‌Ok, that did it, THX!, working now.
‌No FLARM traffic near though, but I'll see.
‌Q: do you have a picture of a FLARM target shown in Traffic@192.168.10.1, how are they recognized?
‌Q: Hardware//Settings@192.168.10.1 now has 978, 1090 and 868 - 978 has to be OFF?
‌Q: Status@192.168.10.1 does not show FLARM?

‌Answer 1, FLARM targets are green:

‌Answer 2: yes, 978 has to be off
‌Answer 3: right, Status does not show FLARM

TouchTheSky
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KevinWolters - 3/25/2018 10:32:34 AM
SemperFi - 3/25/2018 10:06:14 AM
TouchTheSky - 3/25/2018 7:57:03 AM
KevinWolters - 3/24/2018 9:49:06 AM
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
wget 
https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
Sorry to bother again..
I‌ don't get it. Yesterday i downloaded a fresh stratux image and installed it to my SD card.
After i got it up and running i followed to following instructions that i found on this forum:

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
‌‌
sudo raspi-config
//expand file system and reboot

//Log in using SSH over wifiHotSpot or HDMI/Keyboard
sudo ifup eth0

//Log in using SSH to eth0 IP address
sudo su
systemctl start ntp
service stratux stop
sudo apt-get update
sudo apt-get install libconfig9
sudo apt-get install libjpeg8
wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.9.linux-armv6l.tar.gz
cd /root/stratux
export PATH=/root/go/bin:${PATH}
export GOROOT=/root/go
export GOPATH=/root/go_path
cd /
rm -Rf /root/stratux
cd && git clone https://github.com/WiringPi/WiringPi.git && cd WiringPi/wiringPi && make static && make install-static
cd && git clone https://github.com/0x74-0x62/stratux.git && cd stratux && git checkout remotes/origin/devel/flarm_receiver && make && make install
//Long Wait
service stratux start

//Finnish‌‌

A‌fter the stratux start command i got the following notice:
"Warning: Unit file of stratux.service changed on disk, 'systemctl daemon-reload' recommended."

How do i know if i installed it correctly? i cannot find any changes in the software or an extra Flarm button/switch or option..

I also tried to configure my 978Mhz antenna as TouchTheSky mentioned but it keeps saying scanning base stations and nothing happens..

(‌This is my first experiënce with Raspberry so i have got a lot to learn).‌

The latest FLARM version requires go version 1.10. Therefore you need to use the following go commands:

‌‌wget http://storage.googleapis.com/golang/go1.10.linux-armv6l.tar.gz
sudo tar -C /root -xzf go1.10.linux-armv6l.tar.gz

‌The antenna ppm configuration is not really important, you should however eeprom the second SDR as follows:
‌rtl_eeprom -d1 -s stx:0
‌This requires to stop stratux beforehand with "stxstop"

‌Ok, that did it, THX!, working now.
‌No FLARM traffic near though, but I'll see.
‌Q: do you have a picture of a FLARM target shown in Traffic@192.168.10.1, how are they recognized?
‌Q: Hardware//Settings@192.168.10.1 now has 978, 1090 and 868 - 978 has to be OFF?
‌Q: Status@192.168.10.1 does not show FLARM?

Thanks! i also seem to have it working.
I have got the same questions as SemperFi Smile
For the connection with SD we still have to use SkyEcho, Ilevel as a third-party device? or do we still have to change the IP and switch to Flarm as third-party?

T‌hank you for all the support!‌

Just connect your Stratux via WiFi and select SkyEcho, Ilevel as a third-party device. It should work right away.
Kevin Wolters
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I've got some activity on Skydemon! Smile
But on flightradar i found a airplane of my flightschool but i was unable to find it on Skydemon. does that have anything to do with the fact i'm now on the ground maybe? 

‌‌
TouchTheSky
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KevinWolters - 3/25/2018 11:27:05 AM
I've got some activity on Skydemon! Smile
But on flightradar i found a airplane of my flightschool but i was unable to find it on Skydemon. does that have anything to do with the fact i'm now on the ground maybe? 

‌‌

Are you sure that this plane was sending ADS-B and/or FLARM? FlightRadar and others are using Multilateralisation to locate Mode-S only planes but Stratux does not display them.

rg
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TouchTheSky - 3/25/2018 7:57:03 AM
 you should however eeprom the second SDR as follows:
‌rtl_eeprom -d1 -s stx:0
‌This requires to stop stratux beforehand with "stxstop"

‌What does this do?  Is it a change to the hardware or just software?  Is it necessary? Reason for asking is if I just put my standard Stratux install memory card back in will it work OK??

Edited 3/25/2018 3:40:29 PM by rg
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