RDS Surveyor is being developed by Christophe Jacquet, a radio ehtusiast.
Run RDS Surveyor 2 now in your browser!
Project links:
Input panel
First select the source, and then click "Start selected source".
For sources processing MPX data, you will see a plot of the MPX spectrum and a constellation diagram. If reception is good, you should see two clearly distinct clusters of dots on the constellation diagram, corresponding to the two states of the RDS' BPSK modulation.
The "Block error" graph provides visual feedback on the reception quality of the past blocks: each column represents one group, with each block represented in green (checksum correct) or red (checksum incorrect; dropped).
Data recording
Click "Record groups" to enable recording of the group stream. After you select a directory, a new recording file (with groups in hexadecimal format) is created for each station you tune to. You can later play back these logs using the File playback" source.
When using a radio source, to use another radio source or play back data, click "Stop" first.