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A Python script to generate AFSK data WAV files that can trigger NOAA Weather Radios and Emergency Alert System devices
This project forked from jmcmellen/sameeas
A Python script to generate AFSK data WAV files that can trigger NOAA Weather Radios and Emergency Alert System devices
=============================================================== License (see the MIT License) Copyright (c) 2011 John McMellen Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ============================================================== In other words, use at your own risk. This software is for testing purposes only. No guarantees of suitability or compatibility with any FCC approved EAS decoders are expressed or implied. Users of the software are encouraged to do extensive testing before using in a production environment, if ever. HOW TO USE: ========================================================== NOTE: Usage examples are listed below this section. The executable file is a compiled version of the four Python scripts easencode.py (the commandline interface), eastestgen.py (EAS message formatting), afsk.py (afsk routines), and audioroutines.py (library functions for signal generation). The scripts were developed using Python 2.7 and should run correctly in any platform where Python 2.7 is installed. The executable file easencode.exe (easencode.py) provides a simple commandline implementation of an EAS encoder. You pass it the configuration details and the result is a WAVE file that *should* be an EAS message according to the structure defined by the FCC rules. This flexibility allows the user the ability to generate a variety of activation messages and observe the way the decoder reacts. Consult the FCC rules for the correct values for FIPS codes and activation messages. The software also provides a "fuzzer" mode wherein the user can generate messages with incorrect or undocumented values. This can be used to check how the decoder responds to data that is not-defined or incorrectly formatted. Some basic help is available on the commandline using the (-h) help option. USAGE EXAMPLES ============================================================= Generate a simple test, 15 minute duration easencode.exe -e RWT -f 029177 -d 0015 -c WXYZ eas-rwt.wav easencode.exe -e RWT -f 029177 -d 0015 -t now -c "WXYZ FM" eas-rwt.wav Generate a test with a voice message from input.wav easencode.exe -e RWT -f 037124 -d 0015 -c KXYZ -a input.wav eas-rwt.wav Fuzz mode: Generate a test with a non-standard EAS message using -z or --fuzz easencode.exe --fuzz "WXR-RAT-012345-111111+0123-BLAHBLAH-" output_eas.wav Read the FCC rules for the exact format of an EAS message
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