Changed the Flightstick.
Please see the output in the attached text file. Unable to post it in the dialogue box here since the system marks it forbidden/spam
pi@raspberrypiRB24:~ $ 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.
This new stick is OK. Keeping it plugged in, do following:
(1) Issue following commands to eliminate the bug in dump1090-mutability
sudo usermod -a -G plugdev dump1090
sudo reboot
(2) edit file "rbfeeder.ini"
sudo nano /etc/rbfeeder.ini
In this file, under [client], change "network_mode=false" to "network_mode=true" and save file.
(3) Restart rbfeeder
sudo systemctl restart rbfeeder
(4) Check status
sudo systemctl status rbfeeder
(5) Check dump1090-mutability map at following address in your browser
IP-of-Pi/dump1090/gmap.html
.