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If you’re running noaacap to send severe weather alerts via APRS, there is a mandatory update available. The zone parsing code has been completely redone to address some issues discovered after the recent protocol update by NOAA.
The current version of noaacap is 1.4.0 and is available here.
The National Weather Service has updated their Common Alerting Protocol (CAP) to version 1.2. This broke our noaacap weather software and the related DAPnet NWS paging rubrics for a bit.
Thanks to an alert radio amateur who called this to my attention, both systems have been updated to process the new alerting format. What you see will not change. All the changes have been behind the scenes.
If you’re running aprx or Dire Wolf as your APRS software, be sure to take a look at noaacap and consider providing weather updates for your county. If you’re already running noaacap, please update to the latest release.
Here are the links mentioned in my 2018 SWL Fest presentation, “RTL-SDR: more SDR on the cheap!”
Receiving NRSC-5 by Theori
NRSC-5 Proof of Concept Code
NRSC-5-D Standard
Other NRSC-5 Related Standards
NRSC-5 Metadata GUI by K2DLS
dump1090 blog post
Dire Wolf source code
Xastir wiki
Xastir source code
Raspberry Pi Foundation
Other useful links
SDR#
Digital Signal Decoder+
Virtual Audio Decoder
Unitrunker
HD SDR
Linrad
DAB Player
If you attended my presentation, thank you for your interest. If you have never attended a Winter SWL Fest and are interested in any aspect of radio reception, consider attending next year. All frequencies from DC to Daylight are fair game.