LF: EbLaunch - an easy application for managing Window's EbNaut-rx

[Domenico IZ7SLZ <iz7slz.domenico@gmail.com>]

Hello EbNauters,

some time ago i wrote a very stupid application for calculating the offsets for a wave file under analisys and launch the Paul Nicholson's application EbNaut-rx.exe with some field already filled.

Now i have added some further facilities (i know that the application remains stupid  in respect the great works done by Paul, Markus, Wolf !! 😀) .

First of all, EbLaunch can launch  DF6NM's FFT application that is used to convert the FFT raw text file (coming from the Spectrum Lab session) to a wave file prepared for EbNaut-rx.

Just check or fill the correct 'sr.ini'  parameters shown on the top of the program (see screenshot 1). Then select the .txt file and press 'Convert raw FFT...." button . A new .wav file will be generated in the same directory.

Then you can select this wave file, fill various fields as symbol lenght, no.of characters, polinomian, no. of cores, and time and frequency of the transmission to be decoded (see screenshot 2).  You can press "calculate offsets" button to check the values, then you can launch EbNaut-rx with the button.

It works also if you are using a wave file generated directly from Spectrum Lab by using EbNaut-recorder function ("Wolf's method").

Before pressing EbNaut-rx RUN button, please check the CRC value becouse it may differs from the default CRC16 .

After that, you can open the 'squared signal' plot program (tnx Markus)  just clicking on the button "show_raw_..."

The program EbLaunch is uploaded on my Gdrive
https://drive.google.com/open?id=1oF6dxXqWlP5Z2mkqQr-CTooCsdHeEu7k

The setup program does install everythings in one directory including EbNaut-rx.exe and DF6NM's utilities. There is also the test FFT raw file shown in the pictures.

EbLaunch is written in ancient VB6, i have tested it on Win7: it seems working.  I ask, whom is interested, to test it and report the bugs.

Scope of this program is to help newcomers in the calculations and also to help the skilled people (not me : i always make mistakes !) to do immediate calculations if in hurry during an EbNaut QSO.

73, Domenico IZ7SLZ

 

 

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