PLUGIN RTL_433 pour SDRSHARP

Plugin 

Replay

plugin_1.10.JPG
rejeu spectre.JPG

Device Window

graph.JPG
displayDelta.JPG

Parametrage SDRSharp

param sdrsharp.JPG

Console

console.JPG

Version 1.10

-Add 3 graphics 
      -Pulse data.
     -Analyse.
     -Fm.
-Add option Rtl_433 -S
      -none
     -all
     -known
     -unknown

This version record files .cu8 to directory SDRSharp.exe.
-Add list devices for option -R
      -Select no display devices. 

Version 1.00

                            Use
Launch
After configuring SDRSharp (see chapter configuration, this information is initially recalled in the plugin window).
The play button of SDR validates the start button of the sdr_433 plugin.
Start button to activate the plugin.
Then wait for a recognized message.
The -MLevel button just adds 4 information to the device window.

for more details on rtl_433 see https://triq.org/rtl_433/OPERATION.html#inputs

The plugin works correctly with SDRSharp versions 1788,1811 and the original version on github.


Display
    Display of each received device in a different window.
    Verbose output display in the console window.
    Frequency spectrum display in replay mode.
Record
-Record data for each device in . wav file
          - either in stereo mode for I and Q which makes it possible to replay this file by selecting it by the SDRSharp(Baseband Files(*.wav) source).To change the file, configure SDRSharp button.
          - either in mono mode for the IQ module which allows the signal to be displayed with Audacity or other third-party software.
    To start these recordings, select MONO STEREO at rtl433 interface, both are possible at the same time.
    Then launch "record one shoot" at the window of the device . 1 is only selectable, it is the last selected that is taken into account.

For these recordings, it is preferable to center the frequency on the device selected to have a frequency spectrum centered.
    If the Recordings folder of SDRSharp exists, the files will be saved in it otherwise in the SDRSharp folder.
    These files contain all the data entered at once(50,000 bytes) and are not limited to the device data.


​   File name are:
       -Device name.
       -Device ID.
       -Channel if exist.
       -Frequency.
       -Sample.
       -Date.
       -Heure.
       -MONO or STEREO


Setting up sdrSharp
The plugin processes the raw IQ data, so a priori, only the parameters located in the upper band changes its operation.
Configure source button:
    Sampling mode:quadrature sampling
    Sample Rate:0.25 MSPS (value of rtl433)
    RTL AGC:on.(not the AGC panel)
    Tuner AGC:on.
    So is the frequency.

 

File Conversion
   Convert .cu8 to .wav STEREO files to reload with SDRSharp.
   The file names are completed by STEREO or MONO, cu8 is replaced by wav.

  The sampling rate is taken at the end of the file name between _ and k.
  If it does not exist, 250000 is taken by default.



Delta with RTL_433
    The size of the receive memory is 50000 bytes compared to 262144 for rtl_433 this size works well but 50000 allows to shorten the processing time of a cycle.

The options implemented in this first version:
    -The different verbose (to the console).
    -Metadata
            -Label(the fields are added to the device windows).

Frequency
     It is possible to select the different frequencies quoted on the site https://triq.org/rtl_433/#building-installation
The free selection allows to launch the plugin without changing the frequency.

Configuration

-Operating systeme:Windows 10.

-Clé DVB-T+FM+DAB 820T2 & SDR DV3 USB2.0

-Modified version of rtl_433 of March 1, 2021.



                                                                     Installation

-SDRSharp installation (tested with version 1.0.0.1788)
     -Place the files in the install folder (SDRSharp.Rtl_433.dll and rtl_433.dll) in the CSHARP folder.
     -Add the line add key="RTL_433" value="SDRSharp.Rtl_433.Rtl_433_Plugin, SDRSharp . Rtl_433" /> in the plugins.xml file