A special version of RDS Spy has been integrated into the popular control software for RDS encoders. For all RDS encoders with appropriate support, the RDS output analysis is now accessible with single click on the RDS Spy icon. Together with embedded software emulator of UECP-based RDS encoder, the Magic RDS 4 becomes an IDE for various applications of the RDS.
The software can be downloaded here:
The version 1.03 brings some bug fixes, minor improvements and extended command line options. The documentation has been updated.
Actual RDS Spy version brings independent RDS data logging as an extension of existing report engine. The DX community will probably appreciate that all reports and logs now reflect also output from the Super PI detector.
Sorry it took so long 🙂
The logging feature is described in the pdf manual (application help). The PI change detection has been improved a bit.
Visit RDS Spy on YouTube
to see examples of use and other related video.
RDS Spy finally supports RDS decoding from MPX or RDS signal connected directly to the sound card.
Choosing that option the entire connection becomes as simple as on the picture:
The RDS Spy provides complete DSP processing of the input signal, including 57 kHz band-pass filtering, subcarrier synchronization and demodulation via Costas Loop equivalent structure, RDS clock regeneration, biphase symbol decoding and differential decoding of RDS data. Thus the RDS Spy entirely removes a need of any external RDS processing circuit.
If your FM tuner does not provide MPX output and no such modification is possible, use the audio line output instead. Although typical FM tuner suppresses RDS signal on the audio output, there are usually some RDS signal residues remaining so the RDS decoding is still possible. Connect both audio channels, right to right, left to left.
Please note that the direct RDS decoding is applicable only if your sound card supports 192 kHz sampling rate for recording. Most of sound cards do not provide this key facility. Follow the sound card’s documentation or visit the forum. SDR users may connect thru a VAC (Virtual Audio Cable) as well.
You may still decode RDS data with standard non-192 kHz sound card if you connect RDS Clock and Data signals into the Line-in socket. For complete list of RDS sources available click here.