Has anyone had a "bad", as in less then stellar performance, with a
Wellbrook ALA 1530
loop antenna?

Hi Terry,

I have a homebrew version of the Wellbrook shielded loop 7' in diameter. It
is in my woods on a short tower and rotator.
On 160M and 75M it is the same as my 80M inverted vee. It's a good performer
on MW/LW but not any real difference between it and a homebrew voltage probe
antenna with a 4' whip.

Loops are most useful where there is a single noise source that can be
nulled with the loop- other than that, it's a toss up.
There is still the wive's tale making the rounds that shielded loop are
immune to the E field noise - rubbish and well disproven in the literature.

So, in summary, I like mine for being a compact RX antenna for MW/LW, but at
least in my environment, not sure I would go to the trouble next time.

Dale W4OP
for PAR Electronics, Inc.