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gr-satnogs
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gr-satnogs/examples/README.md

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Examples

This directory contains a set of useful examples and flowgraphs for testing and demonstrating the performance of the different components of this OOT module

Files

  • morse_ref.wav : This is a reference file containing the HELLO WORLD message. The file is sampled at 8 KHz and the audio frequency is 700 Hz. The Morse code Words per Minute (WPM) is about 20.

Flowgraphs

  • test_matched_filter.grc: Demonstrates the performance of the implemented matched filter for CW decoding.

  • morse_decoding_flowgraph.grc: This flowgraph decodes a CW signal and prints the corresponding message at the stdout. To demonstrate the capabilities of the decoder, signal and noise power GUI sliders are provided for easy testing and experimenting.

  • ax25_example.grc: This flowgraph semonstrates the AX.25 encoder and decoder. It has two different AX.25 payload source blocks. The first one is the Debug Message Source block that assigns as payload a predefined message, whereas the second one is a UDP Message Source block that receives the AX.25 payload from a UDP packet.