I received Antenne Vorarlberg while staying in Altenstadt near Ulm, Germany. With a distance of 77 kilometers that is apparently just within the coverage area of the powerful 50 kW Antenne Vorarlberg transmitter located near Bregenz in Austria. This is their main transmitter, the other 7 ones are mere repeaters.
I listened to “Party-Mix mit Enrico Ostendorf”. Nicole was so kind to confirm my report sent to service(at)antennevorarlberg.at .