Another active antenna resource.
In the AmRad QST article mention is made of a set of
articles from 1983 that appeared in "Radio Electronics".
And the need for serious experimenters to read it.
One of the few advantages of getting up at 3:00EDT, other
then listening to ABC, is the ability to do some pure
research.

Check out:
part 1
http://www.rsl.ku.edu/~eecs501/active_antennas/Burhans1983REpp63-66.pdf
part 2
http://www.rsl.ku.edu/~eecs501/active_antennas/Burhans1983REpp65-72.pdf

I almost remember this "from way back when" and I think the missing 3rd

part had a low pas filter and a LF preselector.

Terry