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Weather alert beacon exec for aprx >= 2.9 or Dire Wolf
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This software is written in python 3.4 and has been tested with aprx 2.9.x. If you are running a version < 2.9.0 you should first update aprx. The current release of aprx may be found at http://thelifeofkenneth.com/aprx/debs/. It has also been tested by N3TSZ in conjunction with direwolf. Version 1.3 or higher is required. The current release of direwolf may be installed on a Debian or Raspbian system via: sudo apt-get install direwolf The current release of noaacap may be found at: https://github.com/K2DLS/noaacap/releases Once you are running aprx >= 2.9 or direwolf >= 1.3, install noaacap: Install via sudo dpkg -i noaacap-0.9.1.deb. Then, to satisfy the dependencies, run sudo apt-get -f install. ==> APRX CONFIGURATION <== Add a beacon section similar to the following to /etc/aprx.conf: <beacon> beaconmode both cycle-size 2m beacon via WIDE2-1 \ srccall N0CALL-13 \ timeout 20 \ exec /usr/local/bin/noaacap.py </beacon> The timeout was needed on my older and slower single core Raspberry Pi Model B. The aprx default timeout is 10 seconds and the timeout may not be needed on a RPi 2 or newer. If you see lots of "BEACON EXEC abnormal close" messages in aprx.log, then you likely need to add the timeout. The program will check for a new alert or update every 2 minutes, but only send if there is a change. ==> DIREWOLF CONFIGURATION <== Add a line similar to the following to direwolf.conf: CBEACON EVERY=2 VIA WIDE2-1 INFOCMD="/usr/local/bin/noaacap.py" ==> NOAACAP CONFIGURATION <== Edit /etc/noaacap.conf: Do not remove the [noaacap] section header. myTZ should be set to the Linux TZ value for the issuing office of your preferred weather zone. For a complete list of timezones, you may use the following command: timedatectl list-timezones | grep America. myZone should be set to your county code. A list of county codes may be found at https://alerts.weather.gov/. Only list one county. The program will then send the alert for all affected zones. You could instead use a zone code if you want to be more specific. myResend should be set to 0 for no message resends or to an interval of your choosing. If noaacap beacons every 2 minutes, a value of 30 would provide hourly resends. Logging values are 0 (quiet), 1 (informational), and 2 (debug). Logs are written to the systemd journal. You may view the logs in realtime using the following command: sudo journalctl -f | grep noaacap. USE It would be good to hear from users of this software. Please email email@example.com with the callsign-SSID of your APRS station that is sending weather alerts via this program. Dan Srebnick, K2DLS 08/04/18