How To Test If Your DVB-T RTL Dongle Is Healthy Following two options are described below: OPTION-1: Dongle plugged into Windows Computer. OPTION-2: Dongle plugged into Raspberry Pi. . OPTION-1: Dongle plugged into Windows Computer. STEP 1 of 3: Install dvb-t rtl driver zadig if not yet done so, as detailed below. (1) Download Zadig 2.3.exe from http://zadig.akeo.ie/ (2) Plug the DVB-T or ProStick in your Windows Computer. (3) Follow the steps below: (a) Double click Zadig 2.3.exe to run it. The window below will open. . (b) On main menu, click "Options". On the drop-down, place a check mark beside "List All Devices". . (c) From list of devices, select "RTL2838" which is actually DVB-T/ProStick. Now click button which will either say "Install Driver" or "Reinstall Driver" . . STEP 2 of 3: Download RelWithDebInfo.zip from here: Download Link: http://osmocom.org/attachments/download/2242/RelWithDebInfo.zip Web Page: https://osmocom.org/projects/sdr/wiki/rtl-sdr (scroll down to bottom of page to find download link) STEP 3 of 3: (a) First EXIT dump1090 or RTL1090 or ModeSdeco2, or any other software using DVB-T to make the Dongle free for test. (b) Un-zip RelWithDebInfo.zip. It will create a folder RelWithDebInfo. Inside this folder there is another folder rtl-sdr-release which contains several files and 2 folders named x32 and x64. (c) Go to folder x32. You will find many rtl tools in it as shown in screenshot-1. (d) Double-click file rtl_test.exe to run it. A command console will open and if Dongle is OK, it will give output as shown in screenshot -2. SCREENSHOT-1 SCREENSHOT-2 . . . . . OPTION-2: Dongle plugged into Raspberry Pi. STEP-1: Install the test tools package rtl-sdr Code: sudo apt-get update sudo apt-get install rtl-sdr STEP-2: Stop dump1090 to free your Dongle for test Code: #choose one of the following commands, #depending on which version of dump1090 you have installed. #If you are not sure, issue all three one by one sudo systemctl stop dump1090 sudo systemctl stop dump1090-fa sudo systemctl stop dump1090-mutability STEP-3: Now run the test command Code: rtl_test -t If your Dongle is OK, AND Properly connected to Pi, you will see this output Code: Found 1 device(s): 0: Realtek, RTL2832UFA, SN: 00001001 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 Sampling at 2048000 S/s. No E4000 tuner found, aborting. . STEP-4: Reboot your Raspberry Pi to restart dump1090 and all data feeders, and restore to normal operation state. Code: sudo reboot .