New RTL-SDR Radio Data System (RDS) Decoder: Redsea

Signals hacker Oona Räisänen has released on GitHub a new software tool for the RTL-SDR called Redsea. On her blog she explains that Redsea is a Linux and OSX compatible perl based command line Radio Data System (RDS) decoder that uses the rtl_fm tool. Oona’s post explains a little about how RDS works and also explains how her software actually decodes RDS.

The Radio Data System (RDS) is a digital data subcarrier built into some broadcast FM signals. It usually carries information such as the station name and the song currently playing.

RDS Waveforms
RDS Waveform Decoding Steps
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Related posts:

  1. Video Tutorial: Hak5 on Decoding RDS with GNU Radio and GR-RDS
  2. Decoding and Listening to HD Radio (NRSC-5) with an RTL-SDR
  3. A GNU Radio Based ISDB-T and RTL-SDR Compatible 1Seg Decoder
  4. GR-Air-Modes GNU Radio ADS-B Decoder for the RTL-SDR Updated
  5. Tekmanoid STD-C Decoder Updated: New Paid LES Decoder + EGC Visualization

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