What a piece of CRAP this antenna turned out to be.......almost the
price of the radio itself !!!

This is why it's crap:

1) the reception is WORSE with the antenna, than using the whip
antenna on my degen radio, model DE1102 !!! I actually get the signal
properly, and can listen to the program with the radio, but then the
show disappears completely if Iuse the external DE31 antenna!

2) the batteries AAA inside the antenna, to power it, run down pretty
fast. I recharged a pair just before, and they were run down 2 or 3
hours later, when I gave up.

3) it's not clear how the de31 can give a better signal, unless you're
in a manhole, in a military bunker, underground and you need to have a
connection to the surface 5 m away. This would be the only conceivable
use for this antenna.

What a huge waste of money, this de31 !!!