It isn't a Radioscape module, it is a Frontier Silicon Chorus FS1010-A. To call it a module is a little grand, as it is a single small chip.

http://www.ensigma.com/News/Release/index.asp?ID=21

The Matsui tuner has three separate boards inside it. One with the power and amp, another with the display and a third with the dab module and everything else.

Here is the board with the DAB module on:



There are some more shots of the internals here http://www.norman.cx/photos/default.asp_Q_ST_E_1_A_F_E_20041231