[HCDX] Impedance Transformers
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[HCDX] Impedance Transformers



I very much enjoyed the article by John Bryant on matching transformers.
   I have tryed all for circuits (A B C & D) and I have have found the
"B" circuit that I have used for years along with Nick Hall-Patch to be
the best here. The other circuits are noisier, especially "D" where the
only ground you use is the coax braid (no other door ground). That
circuit is the worst. All for circuits work fine as they all will pick
up the same signals, bit the TVI, etc radiates much more into the
antennas. Using solid series of ground rods around here is by far the
best grounding for the secondary side of the transformer. The primary
side (coax) does not need an outdoor Ground as far as can see. 
Great article John!

73s, 

Patrick Martin
Seaside  OR
KAVT Reception Manager

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