Is My DVB-T RTL SDR Dongle Healthy?

[Oblivian]

And if you are posting here cause it's not feeding anymore.. see the other thread where they've broken anyone with auto-update enabled (AGAIN)

[abcd567]

Stick tested as expect, however I got the message: [R82XX] PLL not locked!

Any suggestions?

See below:

pi@raspberrypi:~ $ sudo systemctl stop dump1090-mutability

pi@raspberrypi:~ $ rtl_test -t
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T 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.
No E4000 tuner found, aborting.

Your Stick's test output shows it is healthy.

Dont worry about "[R82XX] PLL not locked!". This is normal behaviour of a healthy Stick when tested.

[T-SBAQ3]

Stick tested as expect, however I got the message: [R82XX] PLL not locked!

Any suggestions?

See below:

pi@raspberrypi:~ $ sudo systemctl stop dump1090-mutability

pi@raspberrypi:~ $ rtl_test -t
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T 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.
No E4000 tuner found, aborting.

[abcd567]

I am running Homeassistant with MaxWinterstein's https://github.com/MaxWinterstein/ho...t-addons's ADB-S Multi Portal Feeder, which is based on Thom-x's docker-fr24feed-piaware-dump1090's
It was working fine until a few days ago. Now I am facing this.

Your system is way different from the system most of the people are using.
Is it installed on Raspberry PI or on a PC?

I have no experience of such a system and cant help.

Your Dongle has shown OK in rtl_test.exe, but dump1090-fa is not able to detect it.
Dont know why, may be the dongle "pass-through" of your system is not functioning ok.
Better use a simpler system, a Debian based OS, with direct install of dump1090-fa, fr24feed etc. These simple systems have much less problems than the system you are using now.

[yousaf465]

That screenshot is not enough to diagnose. Please provide following info:
1. Which OS image you have installed on your Pi, Flightradar24's PI24 image, or Flightaware's Piaware SD Card image, or Raspbian OS image?
2. Which software you have installed on that image?

I am running Homeassistant with MaxWinterstein's https://github.com/MaxWinterstein/ho...stant-addons's ADB-S Multi Portal Feeder, which is based on Thom-x's docker-fr24feed-piaware-dump1090's
It was working fine until a few days ago. Now I am facing this.

[abcd567]

That screenshot is not enough to diagnose. Please provide following info:
1. Which OS image you have installed on your Pi, Flightradar24's PI24 image, or Flightaware's Piaware SD Card image, or Raspbian OS image?
2. Which software you have installed on that image?

[yousaf465]

This one seems ok.

if you dont want to see continous output "lost at least xx bytes", use following command :

rtl_test.exe -t


.

but I am facing this with this stick too,
Screenshot 2021-11-09 095311.png

[abcd567]

what about this stick?
Screenshot 2021-11-08 204202.png

This one seems ok.

if you dont want to see continous output "lost at least xx bytes", use following command :

rtl_test.exe -t


.

[yousaf465]

Fitipower tuner chip.jpg


yousaf465:

Dongle with wrong tuner chip "Fitipower FC0012".
The Tuner chip should be Realtek R820T2.

The two chips in dongle should be RTL2832U+R820T2, but your current one has RTL2832U+FC0012.

Purchase another dongle with correct chipset.


.

what about this stick?
Screenshot 2021-11-08 204202.png

[abcd567]

Fitipower tuner chip.jpg


yousaf465:

Dongle with wrong tuner chip "Fitipower FC0012".
The Tuner chip should be Realtek R820T2.

The two chips in dongle should be RTL2832U+R820T2, but your current one has RTL2832U+FC0012.

Purchase another dongle with correct chipset.


.

[yousaf465]

is this dongle healthy or some other issue? bcz this is my log from raspberry pi

Screenshot 2021-11-06 103817.jpg

Screenshot 2021-11-06 101503.jpg
Screenshot 2021-11-06 102034.jpg

[Aero Club Latina]

Hello Guys,

after making the test i got this result:

pi@T-LIRL12:~ $ rtl_test -t
Found 1 device(s):
0: Realtek, RTL2832U, SN: 00001000

Using device 0: Generic RTL2832U
Found Rafael Micro R820T 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.
No E4000 tuner found, aborting.

more or less everything ok, but what does it mean "[R82XX] PLL not locked!"? How can i solve it?

Many thanks!

[Xavier Tono]

Hi,

After windows ban trying setup Raspberry PI3 with Jetvision DVB-T stick. I have system running with 1090 Dump and FR24 feeder.
But this system is deaf, I can have only 2-5 flights decoded one time max distance around 50nm. Same antenna with AirNav Radarbox will give 40-50 flights > 150nm.

So maybe I have deaf DVB-T dongle?

tested dongle:

pi@raspberrypi:~ $ rtl_test -t
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T 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.
No E4000 tuner found, aborting.

Any thoughts?

Xavier


EDIT: Well, replaced Jetvision with Flight Aware ProStick plus and now getting ten time more flights, max distance >200NM

Xavier

[wiedehopf]

This one is very nice: https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/

You could even get their LNA if you want really good reception (rtl-sdr.com/new-product-rtl-sdr-blog-1090-mhz-ads-b-lna/)

There are some dongles with integrated filter and LNA, those are an option as well. (external LNA is way better though)
(airnav flightstick / flightaware pro stick plus)

[Damianiw]

Try another 5v power supply adaptor for Pi B.

As you already have Pi Zero, use Pi zero's 5v adapter with Pi B for trial.

Tried and my verdict is my sdr dongle is the fault even found an app for Android and tested it on there it gets scorching very quick 1-2 mins then stops sending data, dismantled it and back of pcb is discoloured under both of the main chips.

This was a cheap and cheerful one from China and has lasted about 18 months any recommendations on another or do they all eventually burnout as I know they all run warm


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