<miso@sushi.com> wrote

The loop is untuned, so Q isn't an issue.

In that case it could be many things that cause the smaller loop to be more
accurate.  One more thing to think of - the feed line may be picking up some
signal causing inaccuracy or broader nulls.

But in any case, if you've been getting results from your tests that have
only 1 degree error you're doing extremely well.  Like many things, the
effort/expense to results scale is logarithmic.  :-)

.