The station does stream, but streaing is blocked by the firewall at
work.

It is hard to believe that there are no alternatives - I hear the
station (faintly) when the loop is placed (and oriented properly) on
the window sill.

Is there a website dedicated to passive AM antenna design out there?
The other experiment I have not tried i connecting the ground terminal
lug of the recever to the electrical ground of the building, while
keeping the loop tied to the othe lug. Will try that next.