I’ve always two receivers covering the 8 and 12 MHz DSC channels. And sometimes you catch something new… last night Bandar-e-Anzali radio from Iran was received on 12 MHz (12577 kHz).

Funny detail: Anzali is a port on the Caspian Sea, but the message was to acknowledge a DSC test from CHEMROAD QUEEN, a Panamese flagged tanker anchored near the port of Al Jubail in the Persian Gulf. There is no waterway to connect the two.

CHEMROAD QUEEN anchored near Al Jubail Port (Marine Traffic website).
Bandar-e-Anzali port