For my site, apartment in an apartment building, I can the following stations on this antenna receive digital (in brackets are the signal strength of my wire antenna):
Nationwide channels: Channel 5C 80% (100%)
Stations of the WDR broadcasting: Channel 11D 50-70% (85-100%)
Sender of the SWR broadcasting: Channel 12A 10-30% (40-60%)
depending on weather conditions: Belgian and Dutch channels
Due to the unsatisfactory situation and the rather sobering results this antenna me could not really convince.