I had a Burhans loop amp and active whip amp, when I tried Lowfering?back in the mid-1980s.
Sorry Ralph and his?kits are not around any more.
73
W6CJ
On Thu, Aug 11, 2022 at 8:23 AM John Hudak <hudakjm@...> wrote:
Marcus made reference to the Burhans loop preamp in his post.? Ralph Burhans offered these as a kit (Ralph has now passed away), which is what I bought directly from him.? I have been using this preamp along with a 3ft. diameter single turn shielded loop for well over a decade and I can attest that it works very well in the 10kHz.-500kHz. range.? I use it both for NDB DXing and for recording SIDs. I live in an area with several 50kW stations including one clear channel pest not too far from me, and nothing in the way of AM BCB signals gets through on this antenna.? I've tried a number of other antennas and I still keep coming back to this one because it works the best for me in my high noise environment.
You can see the schematic on Steve's (VE7SL) web page here:
