[Reece]

Antenna for both AM and SW: just a wire on the "red" terminal. Should be able to pick up plenty with 20 feet in the house. Better with a long wire outdoors, high as you can get it. Mine is 60 ft. long 30 ft high but whatever you can get outdoors will work. Back in "radio days" people put poles at each end of the roof gables and strung the antenna between, or strung one from the chimney out to a tree or to the garage roof, or just along under the eaves of the house. Most of that is gone now but when I was a kid there were still plenty of remnants of antennas from the thirties and forties. Wire up in the air however you can do it works. However, short wave ain't what it used to be. Most of the good European stations you could get every night have disappeared.