: Double-click your modified .bat file to start decoding. Key Features and Enhancements
: Use a tool like SDR# (SDRSharp) to determine your dongle’s frequency correction (PPM) and optimal gain.
A free Windows application with a graphical interface, available from FreeDownloadManager.
For most dedicated aviation spotters, Acarsdeco2 remains the go‑to choice because of its excellent multi‑channel decoding and tight integration with PlanePlotter and VRS.
An interactive map showing the aircraft currently transmitting to your antenna. Signal-to-Noise Ratio (SNR) and station statistics. Optimizing Your ACARS Monitoring Station Acarsdeco2 Windows Download
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Run the downloaded ZIP file through a multi-engine scanner like .
: Unzip the downloaded folder to a dedicated directory (e.g., C:\SDR\Acarsdeco2 ).
: You must have the Microsoft Visual C++ 2013 Redistributable (x86) installed. Even on 64-bit systems, the 32-bit version (vcredist_x86.exe) is required for the software to run. Initial Setup and Configuration : Double-click your modified
: Monitor multiple ACARS frequencies at once without needing multiple SDR dongles.
| Option | Description | |--------|-------------| | --device-serial 5 | Selects a specific SDR dongle by its serial number (useful if you have multiple dongles). | | --gain <value> | Sets the gain in dB (e.g., --gain 38.0 ). | | --freq-correction <ppm> | Sets oscillator correction in ppm (e.g., --freq-correction 65 ). | | --freq <Hz> | Adds an ACARS frequency. Repeat for up to three frequencies. | | --agc | Enables automatic gain control. | | --http-port <port> | Sets the port for the HTTP web server (default 8080). | | --outConnectUdp pp:127.0.0.1:9742 | Sends ACARS data to PlanePlotter on port 9742. | | --outServer ad2:30008 | Creates a TCP server on port 30008 that outputs data in SBS/Basestation format (for VRS). | | --logfile-sbs <path> | Writes a log file containing decoded messages. |
Acarsdeco2 is an RTLSDR ACARS decoder designed specifically for multi-channel operation. Traditional software often limits you to monitoring a single frequency. Acarsdeco2 can listen to up to three ACARS frequencies simultaneously, provided they fall within the same 2 MHz bandwidth of your SDR dongle. Key Features:
--gain : Sets the internal tuner gain of your RTL-SDR hardware. Adjust this value up or down depending on your local radio noise floors. For most dedicated aviation spotters, Acarsdeco2 remains the
Runs efficiently in the background without heavy CPU usage. Acarsdeco2 Windows Download: Finding the Files
This indicates the frequencies you specified are too far apart. The maximum interval between the minimum and maximum frequency channels is approximately 1.3 MHz. If you need to monitor a wider frequency range, consider using multiple RTL-SDR dongles.
: Ensure you have the Zadig WinUSB drivers installed for your RTL-SDR dongle, as the software communicates directly with the hardware. Installation and Setup
Look for the specific Windows version (often a .zip archive). If you are running an older system, look for the acarsdeco2_xp.exe variant for compatibility with legacy environments. Step 2: Install Essential Drivers