Finally got my "31". Think it is a great addition to my Degen 1102. I
noticed something interesting, though, when plugging it into the 1102,
without even turning on the amp I get a huge signal increse if I leave
the jack one notch from being fully plugged in.

I've tried it on all bands and it has the same results.

Anyone else notice this? I'm wondering if it is only an 1102 thing.

i have several sangean sw radios that exhibit the same signal increase
thing when the antenna is barely plugged in. even if the signal is
louder it seems that the signal to noise ratio remains the same. its
the same as just turning up the volume. the signal is louder but the
background noise level is also increased. after lots of fiddling and
testing i have figured out that there is no benefit at all.