I was just given a Grundig YB400PE without the external antenna, and the
shortwave reception inside my mobile home (metal box) without an
external antenna is non-existent. After reading several of the antenna
discussions here I was wondering if I could get recommendations about
the best way to build an outdoor antenna. I can put up a large diameter
loop outside, say up to 6 feet diameter, mounted above the roof, or I
could run a straight wire about 40' running roughly East-West above the
roof, or a combination of the two if that would help.

When I was a kid my dad bought a Hallicrafters shortwave, I think it as
an SX-99, and he used the heavy dog run wire mounted about 10' above the
ground, running from the house to a tree in the back yard oriented
roughly North-South with no ground (neither of us knew anything about
electronics then), and I got stations from all over the world, it was
really interesting hearing the programming from other political slants
as a kid. So I'm wondering how much I can pull in with this cheap little
model.

TIA,
Mike