[Lowfer] LF Lop Antennas

[Tom Clifton]

A good page wint a nice colleciton of other links at the bottom. One thing I am trying to get a handle on is the relative Q of various types of capacitors - Air variable, Poly variable as in what Doug Hendricks has,  mica, mylar, polystyrene etc.   Does anybody have a resource on this?  So far I have seen air variable as in the 1500' range and mica at 1200.  

http://www.mindspring.com/~loop_antenna/