You would be surprised how good a long end fed wire can be. I spent a
long time with just a 100 foot wire wrapped around a nail next to my
window and thrown into a tree. There was maybe 80 feet between the
window and 20 feet hanging down from the tree and tied to a brick.
This kept the line fairly tight in the wind. I used this with my
Sangean 803 for years. It was a grand improvement over the whip.
It was only when I got the Icom R-75 that I started to use more
sophisticated wire.