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DIY indoor FM antenna idea. Will it work?

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Hello folks.
I recently purchased a vintage Sansui 661 receiver. The FM reception in my home is next to zero, so I have an idea for a antenna. I need some input to see if I'm wasting my time with the simple project.

In my dining room I have a north facing small window. It's directly above where my system is located. I've been looking at different diy projects and I think this might work for me.

I'd like to use the window frame itself as the antenna. The window is 20" high x 34" wide. I'm curious if I fashion a folded dipole arrangement around and across the window opening if it might work. It would become part of the room and can be covered with a window shade to keep the girlfriend happy.

I would be using 16 gauge copper wire, unless I need something heavier. I have a layout planned that copies some other plans I've found online. I don't listen to any specific FM stations, so I'm not sure what to do for tuning to a specific frequency, if it's even necessary at the moment.

I would start at the lower right hand corner and stretch the wire to the opposite corner. Then stretch diagonally to the top right corner, then along the top of the window frame and back diagonally to the beginning point. From that point on to the 300 ohm connection on the receiver. Wish I had a diagram, but I don't. The bottom of the window is approximately 5ft from the floor, if that helps.

If this makes any sense to someone I'd appreciate any comments, good or bad.

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