Software differences?

There’s adsbxchange, dump1090 and adsb receiver. What are the differences?
Can they all be run together from the same hardware (Raspberrypi3)?

I have two radios, 1090 and 978 so I’m interested in using software that can use both.

 

Dump1090 is a decoder. It processes the data stream coming from radios and outputs
ads-b/mode-s messages in a variety of formats (sbs, beast, raw, etc), depending on how it is
configured. There are different versions of Dump1090, as well as other known decoders for
Linux or Windows, but Dump1090-mutability is the most common choice for Raspberry kits.
It can manage both your radios, but you need to run two instances of the program at same time,
each of them will "listen" just one radio.

adsb-receiver is a script that makes easy to download and install all the software packages
required to a Linux-based radar station. It can download decoders, a range of feeders for
known sites (Fr24, FlightAware, etc), and other useful software aimed to collect and display
performance data in a nice way.
It allows to install adsb-exchange feeder and Dump1090 decoder as well.

 

Sounds like adsb recvr. is going to suit me. Running two instances of dump1090? Sounds complicated.

 

Ok. So I went ahead and re formatted my sd card and burned the 1.27 image.
I looked at the config text, didn't find a place to put the coordinates, etc.
I had the config text from a previous installation and copied that into the sd card.
Placed the card on the raspi3, logon prompt came up, I used pi and adsb123, can't logon.

Suggestions please?

 

adsb-config.txt .. it's there ...

 

Yes, but, I scrolled up and down and I could swear I didn’t see it. When I get back home from work, I’ll just copy over the copy I made of the working one before.

 

the config.txt file is only for the Raspbian operating system

 

I’ll check again tonight and let you know.

 

Got back from work and, my freshly reformatted card was waiting for me to re flash the image.
This time, though, the ads-b config file was there. Entered my coordinates and wi-fi info. Now, I'm waiting to connect to the servers...

Was there something I read somewhere regarding the radios?

Something to the effect that, I needed to tell the software what radio was using which port?

 

you do need to tell it which radio to use for 978 or 1090 ONLY if you have a specific 978 antenna and 1090 specific antenna.

we do that by ssh into the pi and using rtl_eeprom to rename each sdr then tell 1090 and 978 what sdr to use

Again you only need to do this if you have a 978 tuned antenna and 1090 antenna attached to specific SDR

lsusb
rtl_eeprom

 

In that case then, yes.
Each radio has their own antenna connector tuned to the appropriate band.

 

http://manpages.ubuntu.com/manpages/trusty/man1/rtl_eeprom.1.html

One SDR at a time - tag them with rtl_eeprom

then edit the files to tell which one to use ..

https://github.com/mutability/dump1090/blob/master/dump1090.c
--device-index <index>

I'm not sure how the piaware ADSBx image works with this.

 

I get this:



Found 2 device(s):
0: Generic RTL2832U OEM
1: Generic RTL2832U OEM
Using device 0: Generic RTL2832U OEM
usb_claim_interface error -6
Failed to open rtlsdr device #0.
[email protected]:~ $

Using the command rtl_test, it reveals that device 0 is the 1090 radio and device 1, is the 978.
When I open the web browser and type in the ip, I can launch the 1090 custom map and it does see aircraft so, not sure why the raspi3 says that it failed to open device #0?

 

I think dump1090 will use device at index 0 by default, every time if that helps. But index for device can change after reboots, therefor SDR 0 might not have 1090 antenna.

The fail means it's in use by something and something else is also trying to use it. If you have 978 enabled then that's what happens ... 1090 claims index 0 ... 978 tries to use index 0 and fails - then hopefully moves on to the next one.

 

Code:

#!/bin/sh
if [ -f "/tmp/adsbx-params" ]; then
        . /tmp/adsbx-params
else
        echo "DUMP978 ERR:  Configuration file does not exist."
        exit 0
fi
if [ ${UAT} = "yes" ]; then
    while true
    do
            sleep 30
          if [ -z ${UATPORT} ];then
                  UATPORT=30005
          fi
          rtl_sdr -f 978000000 -s 2083334 -d 1 -g 48 - | /home/pi/dump978/dump978 | /home/pi/dump978/uat2esnt | socat TCP:feed.adsbexchange.com:$UATPORT
    done
else
  exit 0
fi

 

James, I apologize, obvious noob here.
How do tag them?
I saw the ubuntu link, scrolled thru it, found the section where it says "options".
Is this the one I need?
And the mutability dump1090?

 

say you wanted to change serial of one SDR to 1090SDR

http://manpages.ubuntu.com/manpages/trusty/man1/rtl_eeprom.1.html

rtl_eeprom -d 0 -s 1090SDR

Then repeat with the 978SDR

Make sure you write on them with a marker so you know which one gets which antenna

 

rtl_eeprom -d 0 -s 1090SDR

and

rtl_eeprom -d 1 -s 978SDR

Right?