No messages, though the setup is proved to be working

FlightAware ADS-B Flight Tracking
1

Hi,

My setup consists of RTL-SDR V4, RPI4B and a coaxial collinear antenna made using RF-10 cable.

The setup is running on Debian Bookworm 32-bit, Im using a dump1090-fa decoder.

This is my output of rtl_test :

Found 1 device(s):
0: RTLSDRBlog, Blog V4, SN: 00000001

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R828D tuner
Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6
[R82XX] PLL not locked!
Sampling at 2048000 S/s.

Info: This tool will continuously read from the device, and report if
samples get lost. If you observe no further output, everything is fine.

Reading samples in async mode…
Allocating 15 zero-copy buffers
lost at least 64 bytes

Afer many tries with other decoders, and completely reinstalling the system multiple times the decoder is still showing no messages.

I have tested it using a windows rtl1090 decoder and it works fine.

Im attaching a sample:

succes2
succes2607×899 163 KB

I was trying to come to a solution by reading through forums, but I have no idea what can be wrong.

The RPI4B is powered by the original power supply, and the RTL-SDR is connected directly into a usb port (no extensions).

I have ran some voltage tests and they also came out okay, I have no idea what to blame anymore, please help :((….

2

Have you installed the RTL-SDR Blog V4 Drivers as detailed on this page? :
https://www.rtl-sdr.com/v4/

3

Yeah you need the rtl-sdr v4 drivers as described above.
If you just used the Trixie Raspbian image (and why not use 64bit?), you might not need to as the rtl-sdr drivers in trixie should support the v4.

Or just go with a premade image that supports it like https://adsb.im/

4

Yes sir, I did install the drivers as detailed in the official quick start guide.

Gonna retry it today.

5

Guess it’s missing an important note: gotta use the debian package version install to be compatible with dump1090-fa.

6

So idk how, idk why but installing it on trixie using debian packages worked.

I have used a tutorial provided by abcd567.

Thank you so much, for the advice.