Techcoderadio

 2.2.2024 Inspecting Verto water meter Verto EVN-R house display unit. Communicates 433 MHz FSK with collector unit.

 23.10.2023 Video surveillance with SDRSharp and ADALM Pluto SDR# noskin version SDR# TV plugin Aiptek 2.4 GHz band video camera

  26.3.2022 Upgrading SDR# TETRA demod plugin to .NET7 SDR# TETRA demod plugin version 1.0.14.0 dotPeek Visual Studio 2022 NET upgrade assistant Reverse-engineering with dotPeek to VS project NET upgrade assistant   Visual Studio 2022 Plugin displayname change Rebuild solution. NET 7 assembly is located in net7.0-windows directory. SDRSharp.Tetra\bin\Release\net7.0-windows SDR# version 1910 For the newer (obfuscated) versions of the TETRA demod plugin one can try to deobfuscate by using e.g. de4dot, dnSpy and de4dot-cex to get code at level which is buildable with VS (and upgradeable to .NET7).

1.2.2023 SDRSharp Multimon-ng launch plugin updated - 4 New features: HAPN4800 Multimon-ng launch command line text visible in textbox Multimon-ng.exe path is stored in file multimon-ng-path.txt https://github.com/OH1GIU-P/SDRSharpMultimonNG version 1.11 - SDRSharp.MmngPlugin_111.7z

  22.1.2023 SDRSharp Multimon-ng launch plugin updated - 3 New features: f        Redirect stdout to file multimon_yyyyMMddHHmmss.txt -p      POCSAG: Show partially received messages -i       POCSAG: Inverts the input samples -e      POCSAG: Hide empty messages -u      POCSAG: Heuristically prune unlikely decodes https://github.com/OH1GIU-P/SDRSharpMultimonNG version 1.1 - SDRSharp.MmngPlugin_11.7z

 8.1.2023 SDRSharp Multimon-ng launch plugin updated - 2 New features: X10, DZVEI, PZVEI -- timestamp   Add a time stamp in front of every printed line - A     APRS mode (TNC2 text output) - j      FMS: Just output hex data and CRC, no parsing https://github.com/OH1GIU-P/SDRSharpMultimonNG

  6.1.2023 SDRSharp Multimon-ng launch plugin updated https://teknokoodiradio.vuodatus.net/lue/2019/02/sdrsharp-multimon-ng-launch-plugin New features: FLEX, FLEX_NEXT, CLIPFSK, UFSK1200, FMSFSK and -n Don't flush stdout. https://github.com/OH1GIU-P/SDRSharpMultimonNG

  28.8.2023 Some ideas for modifying SDR# DCS plugin to GMDSS/DSC-VHF Visual Studio 2022 dotPeek for reverse engineering/exporting SDR# DCS decoder plugin to VS project. DCSDecoderPanel.cs // Decompiled with JetBrains decompiler // Type: SDRSharp.DCSDecoder.DCSDecoderPanel // Assembly: SDRSharp.DCSDecoder, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null using SDRSharp.Common; using SDRSharp.PanView; using SDRSharp.Radio; using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Windows.Forms; namespace SDRSharp.DCSDecoder {   public class DCSDecoderPanel : UserControl   {     private const int CodeWordLengthInBit = 23;     private AudioProcessor _audioProcessor; ... => namespace SDRSharp.DCSDecoder {   public class DCSDecoderPanel : UserControl   {     private const int CodeWordLengthInBit = 10;     private AudioProcessor _audioProcessor; .....

 11.5.2023 Fixing old SDR# MSYS2 Tetra decoder plugin https://www.rtl-sdr.com/tetra-decoder-plugin-for-sdr-now-available/ SDR# 1.0.0.1715 tetra plugin msys2 dotPeek Reverse engineer SDRSharp.Tetra.dll to Visual Studio project with dotPeek. Fix build errors. Change BeginInvoke((Delegate -> Action       if (flag)       {         this._oneChannelIsActive = true;         this.BeginInvoke((Action) (() => this._controlInterface.AudioIsMuted = false));       }       else       {         this._oneChannelIsActive = false;         this.BeginInvoke((Delegate) (() => this._controlInterface.AudioIsMuted = true));   // --> (Action instead of Delegate)       } Fix pointer errors:   =...

27.10.2022 SDR# TETRA plugin raw data output Many years ago the first TETRA demod plugin for the SDR# featured UDP port 20025 demod raw data output. This SDRSharp.TETRA.dll plugin also required M-SYS2, pacman and Tetra-RX to display TETRA decoded data in net info window. The plugin works without M-SYS2+Tetra-RX and outputs raw data to UDP port 20025.

  29.9.2022 Upgrading SDR# SignalStrengthLogger plugin Visual Studio 2022 .NET 4.61 dotPeek SignalStrength plugin https://www.apritch.co.uk/sdrsharp_plugins.htm Upgrading SignalStrengthLogger plugin for the SDR# version 1.0.0.1715 Reverse engineer plugin with dotPeek and generate to VS project. SDRSharp.Common and SDRSharp.Radio DLLs from SDR# version 1.0.0.1715 Upgrade solution level in VS Change .NET target framework Build solution Add method public UserControl Gui and rebuild

  18.8.2022 Upgrading SDR# shortwave info plugin Visual Studio 2022 .NET 4.6.1 dotPeek - for reverse engineering SDRSharp.ShortWaveInfo to VS solution   Upgrading dotPeek generated VS project to VS 2022 SDRSharp.Common.dll from SDR# v1.0.0.1715 sdrsharpcommon-from-sdrsharp-v1.0.0.1715 Solution target .NET Framework to 4.6.1 Build project: Severity    Code    Description    Project    File    Line    Suppression State Error    CS0535    'ShortWaveInfoPlugin' does not implement interface member 'ISharpPlugin.Gui'    SDRSharp.ShortWaveInfo_for_net_2.0    C:\Utils\dotpeek3\SDRSharp.ShortWaveInfo_for_net_2.0\ShortWaveInfoPlugin.cs    12    Active Fix:     public UserControl Gui     {             get { return _myPluginPane...

 18.10.2022 Developing plugins for the SDR# .NET 6.0 Telerik - 2 If you get error: fail: [SDRSharp.Empty]: Failed to load assembly: ....UserAppData\SDRSharp.Common.dll System.BadImageFormatException: Could not load file or assembly 'SDRSharp.Common fail: .... SDRSharp.Radio.dll fail: .... SDRSharp.PanView.dll when loading SDR# SDK sample plugin project in VS 2022.   Resolution: Ensure you have downloaded the latest SDR# SDK from Airspy.com (in case you downloaded SDK many months ago) and install latest Visual Studio 2022   For debugging plugins in Visual Studio, click SDRSharp.Diagnostics Plugins.xml file add key lines are not needed anymore, just copy plugin dll to SDR# plugins folder SDK sample plugin should be visible here: namespace SDRSharp.Empty {     public class EmptyPlugin : ISharpPlugin, ICanLazyLoadGui, ISupportStatus, IExtendedNameProvider     {         private ControlPanel _gui;   ...

 9.10.2022 Developing plugins for the SDR# .NET 6.0 Telerik The latest SDR# version uses .NET 6.0 and UI has based on Telerik UI since .NET 5.0 version of the SDR#. SDR# SDK for Plugin Developers: https://airspy.com/download/ Previous .NET 5.0 based SDR# SDK required many settings adjustments in Visual Studio (https://techcoderadio.blogspot.com/2025/04/developing-plugins-for-sdr-net-5-desktop.html), now the SDK sample project builds ok right away in Visual Studio 2022 with .NET 6 Windows x86 SDK installed.   From SDR# .NET 5.0 version SDRSharp. assemblies are embedded in SDRSharp.exe.   Telerik & SDRSharp controls.   Modify SDK example plugin to show RDS info EmptyPlugin.cs ...         public void LoadGui()         {             if (_gui == null)             {     ...

 15.6.2022 Updating very old SDR# plugins for newer SDR# versions - 1 I downloaded ScopeView plugin for SDR# from here: https://www.rtl-sdr.com/sdrsharp-plugins/ ScopeView Plugin (Not working with 1400+) Adds a simple audio scope to the plugin window. The package contains source code so no need for reverse engineering (dotPeek) First change target .NET framework to 4.6.1 and copy newer DLL versions to project folder (SDRSharp.Common and SDRSharp.Radio) Try to build the project. This time Visual Studio showed error message for unsafe code Severity    Code    Description    Project    File    Line    Suppression State Error    CS0227    Unsafe code may only appear if compiling with /unsafe    SDRSharp.ScopeView   Code is quite old and needs re-engineering (audio processor handling is changed from the SDR# version for which it was developed) Rewri...

3.7.2022 SDR# ScopeView plugin mods 433 MHz ASK/OOK signal (AM demodulation) _control.RegisterStreamHook(_scopeViewProcess, ProcessorType.FilteredAudioOutput);   _control.RegisterStreamHook(_scopeViewProcess, ProcessorType.DemodulatorOutput);   graphics.SmoothingMode = SmoothingMode.HighQuality;   graphics.SmoothingMode = SmoothingMode.AntiAlias;   graphics.InterpolationMode = InterpolationMode.Bicubic;   graphics.InterpolationMode = InterpolationMode.Bilinear; graphics.InterpolationMode = InterpolationMode.NearestNeighbor;           public void Render(float* samples, int length)         {             if (true)             {                 RenderLockBits(samples, length);      ...