RTL1090 Software Download - Original Version 1
- the genuine version for Planeplotter, flightradar24, Virtual Server, ADS-Scope, Globe-S RTL and other ADS-B software
. This version is depreciated. It must not be used for MLAT GS/MU purposes in the Planeplotter network.
Build 100 - 17 MAR 13
RTL1090 - IMU (Installer and Maintenance Utility) 
This internet based utility helps you with setting up a complete RTL1090 installation with almost no manual intervention. It automatically downloads the relevant files as rtlsdr.dll, zadig.exe and helps to configure zadig with a built in tutorial. Just place and start the utility in the RTL1090 target folder (do not use a "C:/program" folder to avoid administrator problems). (Other languages to follow)
V1.0 - 15 DEC 13
RTL1090.EXE VERSION 2 (103) - single exe file
This is the basic stable exe file of RTL1090. If you use IMU there is no need for a download, unless IMU encounters difficulties of some kind. 
Build 103 - 15 OCT 13
This is a beta release of RTL1090 V3 "SCOPE". Unzip the files to your current RTL1090 installation folder and start rtl1090.beta3.exe. Please observe the README instructions for use. V3 retains full downward compatibility to V2 and can be used for MLAT purposes etc. as V2. It just adds a scope and some additional functionality to V2.
Build 151 - 11 JAN 14
RTL1090 YAHOO User Group (English language)
RTL1090 FAQ (frequently asked questions) 

see at the bottom of this page


RTL1030 = Variable frequency data analyzer and 1030 MHz decoder, includes SISEX (signals-in-space explorer)
RTL-UVD= 740 MHz Russian SSR data receiver and decoder
RTL-DUO = Dual 1090 MHz receiver and ADS-B/Mode-A/C/S decoder


SCREENSHOTS of RTL1090 genuine build 100 and BETA 2

Installation FAQ (updated 22 MAR 2013)

Q: The list runs down so fast. How can I read the system messages right after start-up?
A: Start the app, then disable TUNER AGC and RTL AGC. Close and restart the app. Now all system messages will not be overwritten because it is unlikely there are signals to be displayed.

Q: Where do I find the relevant files?
A: Please read DO README FIRST !!!.TXT. follow the instructions thoroughly

Q: How do I upgrade to a new build?
A: Just download, unzip and overwrite the rtl1090.exe file. Close rtl1090 before.

Q: Where can I find the latest app build?
A: In the files section of the Yahoo Group or at http://rtl1090.com

Q: I have plugged in a R820T, but cannot connect.
A: Be sure you have an up-to-date RTLSDR.DLL in your app folder

Q: I have installed and plugged in a R820T, but it says "Dongle not found" (on a DELL machine).
A: Remove other USB devices and reboot your PC

Q: I run a WIndows 64-bit OS and cannot connect to my dongle.
A: Be sure you have installed the rtlsdr.dll from the
rtl-sdr-release/x32 folder, NOT the /x64 folder.

Q: I have plugged in a R820T/E4000, but cannot connect (error -3).
A: Be sure there is no other instance of RTL1090, adsb# or another SDR radio running in the background.

Q: I have plugged in a R820T/E4000. Windows says "Installation complete. Device can be used." But I cannot connect (error -12).
A: Most likely you had installed a DVB-T driver before, that recognizes the dongle for TV. You need to overwrite this driver with the Zadig driver in Bulk-in, interface 0. Do not use interface 1, this is the infrared port.

Q: I have plugged in a R820T/E4000, but cannot connect (error -12). I run Windows XP.
The latest Zadig drivers may not work properly with Windows XP. They work work Vista upwards though. As a workaround: Download and use Zadig v XP Version instead, from here:

Q: When do I need to reinstall a ZADIG driver?
A: There is no need to reinstall at all, except sometimes if you use another USB slot. Zadig can serve both E4000 and R820T from the same installation. //
UPDATE: Reports received that Zadig drivers become lost after some time and reinstall is necessary. This seems to be connected to automatic Windows updates. See the Operating Manual for installation instructions.

Q: When executing the Zadig driver installation a message pops-up that says: "Exception_handler4 ..."
A: Just click the message away and ignore it , the installer will finish succesfully.

Q: I have installed RTL1090 as instructed, but when I try to start the app, nothing happens.
A: The DLL msvcr100.dll, that usually resides in the Windows folder, cannot be found.
Download the DLL from the internet and place it to the app folder.

Q: I cannot download RelWithDebInfo.zip. There is no response from the server
A: The server may be offline. Try to use the web archive link below

Planeplotter + RTL1090 FAQ

Q: How do I need to configure Planeplotter to link to RTL1090? (effective from version 6.3.2)
A: Configure in the I/O options as below:

Dont forget to press the green button in Planeplotter!

Operations FAQ

Q: What is the recommended gain setting for the stock whip antenna?
A: Tuner AGC - ON, RTL AGC - on

Q: What is the recommended gain setting for an outside antenna?
A: Tuner AGC manual adjusted; RTL AGC - on

Q: What is the output format of RTL1090
A: Beast binary format, AVR format can be selected from command line switch /AVR

Q: What are the blue LEDs for?
A: Number of valid data packets per sec 0-LED-10-LED-20-LED-40-LED-80-LED-120-LED->120

Q: What is the green LED for?
A: Planeplotter has connected on TCP port

Q: What do I need to upgrade from E4000 to R820T?
A: Nothing. Just swap the dongles. Be sure you have an up-to-date RTLSDR.DLL in your app folder.

Q: Why does the RTL1090 receive less packets/sec compared to SBS-1/3/Radarbox/Beast? The range is about the same.
A: The sample rate is much lower, it is only 500 ns.

Q: How fast does my computer need to be?
A: Win XP to 7, dont know about 8. Best is two cores for multithreading, though others will work. Average overall CPU load on a four core is 5%. Atom PCs seem not to cope with packet rate.

Q: What do the status fields at the bottom indicate?
A: From left:
- Number of USB data packets received. Should be ca 490 for Mode-S, 502 for Mode-A/C
- Number of valid data packets sent to Planeplotter
- Automatic threshold
- Number of aircraft seen

Q: How can I tune the center frequency?
A: Signals are broadband (rectangular pulses) and receiver bandwidth is 2 MHz. This needs no fine tuning.

Q: What is the Max/Min button for?
A: You can test for reception range and gaps of your dongle.

Q: I receive a TCP server error 10053 or similar when shutting down Planeplotter!
A: There are still packets in the pipeline that RTL1090 can not send because you have shutdown
Planeplotter (the receiver). Close RTL1090 first, before you close Planeplotter

Q: I am bothered by watching all these airplanes. I want to do the real thing with my dongle and watch TV. Where can I find the TV drivers?
A: If you have purchased your dongle from the 1090-MHz-Kit-Shop you can find the drivers here. Please note that installing these drivers invalidates the Zadig drivers and these need to be re-installed, if ever you feel the desire to return to ADS-B and RTL1090. Re-installation may be tricky and become a nightmare. The drivers are here(Serial number:

A possible setup scenario (by sonicgoose)
A possible setup scenario (many thanks to sonicgoose)