All generic DVB-T have serial # 00000001, and all Pro Stick and Pro Stick Plus have serial # 00001000.
The two dongles on same Pi require different serial numbers to be selectively picked by dump1090 and dump978. For example, if the dump1090 config is set to device=0 and dump978 is set to device=1, and dongles serial numbers are also changed to 00000000 and 00000001, the two dumps will connect to respective dongles. If 1090 mhz antenna is connected to dongle with serial # 00000000, and 978 mhz antenna is connected to dongle with serial # 00000001, the system will work ok.
How to Change Serial Number of A Dongle
In tutorial below it will be changed from default 00000001 to 00000000.
(A) Dongle Plugged into Raspberry Pi
STEP-1
First stop the dump1090 to make Dongle free for use by rtl tools.
#Give one of the command according to version of dump1090 you have installed
#If you are not sure of version, give all three commands one by one
sudo systemctl stop dump1090
sudo systemctl stop dump1090-mutability
sudo systemctl stop dump1090-fa
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STEP-2
Install package rtl-sdr, if not yet done.
The tool rtl_eeprom is part of package rtl-sdr
sudo apt-get update
sudo apt-get install rtl-sdr
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STEP-3
Now give the command rtl_eeprom -s 00000000 to reset the serial number
The last line of output will ask confirmation to go ahead with change.
Type y and press Enter key
rtl_eeprom -s 00000000
Found 1 device(s):
0: Generic RTL2832U OEM
Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Current configuration:
__________________________________________
Vendor ID: 0x0bda
Product ID: 0x2838
Manufacturer: Realtek
Product: RTL2838UHIDIR
Serial number: 00000001
Serial number enabled: yes
IR endpoint enabled: yes
Remote wakeup enabled: no
__________________________________________
New configuration:
__________________________________________
Vendor ID: 0x0bda
Product ID: 0x2838
Manufacturer: Realtek
Product: RTL2838UHIDIR
Serial number: 00000000
Serial number enabled: yes
IR endpoint enabled: yes
Remote wakeup enabled: no
__________________________________________
Write new configuration to device [y/n]? y
#After typing y and pressing Enter key, you will get this confirmation message
Configuration successfully written.
Please replug the device for changes to take effect.
.
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(B) Dongle Plugged into Windows Computer
STEP 1:
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:
- Double click Zadig 2.3.exe to run it.
The window below will open.
.
- On main menu, click “Options”.
On the drop-down, place a check mark beside “List All Devices”.
.
- 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:
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:
(a) First EXIT your dump1090 for windows, or RTL1090 or ModeSdeco2 or any other software which is 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 the screenshot below.
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STEP-4
In folder x32, right-click and create New Text Document
STEP-5
Open the New Text Document and type
rtl_eeprom -s 00000000
STEP-6
Save the file as change-serial.bat
While saving, make sure that
- File name contains .bat at the end
- “Save as type” is selected “All Files”
Please see screenshot below.
STEP-7
Double click the file change-serial.bat to run it
STEP-8
Upon double clicking the file change-serial.bat, command console will open, with last line asking confirmation to change serial number.
Type y and press Enter key. The serial number will change and command console will close immediately.
STEP-9
To check if the number has actually changed, again double click the file change-serial.bat, and it will show changed serial number.
Type n and press Enter key to close console
