Total posts : 45366
A new idea hatched during experiments with a dipole antenna made from lamp cord. What if four dipoles were strung in a cage monopole arrangement?
Obviously this doesn’t apply to AM medium wave Part 15 operation, but to shortwave transmission at 13.560mHz in projects with Talking Pixie2 and the new Big Talker 3-transistor projects.
The text books say a lamp cord di-pole has a typical impedance of 72-ohms, therefore stacking four of these in series would bring the impedance down to 18-ohms.
What are the expected advantages of a horizontal cage monopole? That’s what I wonder.