I'm basically a lurker in the newsgroup but I've forgotten what the
term as used with an antenna impedance like 30 +J200 or 25 -J150 etc
means. I remember studying it about 10 years ago when I took my extra
test and I had it in tech school at about the same time from a Jr.
College during one 4 credit hour "communications" course that covered
everything from TV's to SSB and FM. I believe it's one way of
expressing an impedance with some reactance thrown in and I recall
converting between polar and rectangular methods of expressing the
same term ( I would really need the book for that now ! ) But I don't
think I have the books from the school days around anymore. Any one
care to give me a short refresher course or post a URL ? I've got a
bad case of CRS ( Can't Remeber Stuff ;-) )

Happy New Year !