While
on the subject of ferrite loopstick antennas, I have built a tuned
ferrite loopstick antenna much like the ones that can be bought
commercially. Electrically, VERY much like the commercially available
ones! My design uses a very high impedance balanced FET amplifier being
fed directly from an isolated resonant LC tank consisting of a
loopstick/ variable cap. It works pretty well. Changeable loop elements
and all.
As I endeavor to make a Stormwise version of this antenna I want to clear up the two ways to use a loopstick with a preamp.
The
direct coupled method is one way but the other (more common) way I've
seen is to wind a second loop on the ferrite to tap off the signal.
There is no reason I couldn't use that as a drive for a FET amplifier (I
guess). I'm just wondering what are the advantages/ disadvantages of
the two techniques? Anybody have any thoughts on this? Any web links
that address this? Thanks!
