/diy/ - Do It Yourself

Hey, guys, total brainlet here.

I like to listen to stations transmitting on the longwave band, but the reception on any portable I could find is absolutely horrible.

I am planning to build a loop to improve reception, but I don't have a variable capacitor. I was wondering if it would be possible to build a fixed (ie non-tunable) loop for a specific frequency? I would like to have three or four different loops for different frequencies, so I don't have to tune them.

Is this doable or am I just retarded?