Jerry G posted:

The basic TV rabbit ears are a simple 300 ohm dual dipole antenna. Look up
dipole antennas and you should have some explanations. A dual dipole antenna is
based on the simple single dipole antenna. The 2 dipoles work in a parallel
type of operation to accommodate having a balanced type of antenna, to match to
the 300 ohms.

If you were to add on a 300 ohm to 75 ohm converter, then you can use a single
dipole antenna (single rod type antenna that most of the newer sets are using
for local indoor use). The TV sets that have the single
dipole antenna have the their RF entry in the 75 ohm impedance design.

On the rabbit ears, each dipole is adjustable (length and angle) to compensate
for frequency, reflections, and directivity.

Many of the manufactures of rabbit ears added on traps, and other gadget type
options to make these more adjustable. Many of these add-ons worsened the
rabbit ear performance, and or made them more complicated to use.

Most of the sites you will find on the web deal with armature radio. The
impedance for communications equipment 50 ohms (52 ohms) by standard.

Antenna Basics:
http://www.electronics-tutorials.com...nna-basics.htm

Antenna Calculator & Information:
http://www.csgnetwork.com/antennaedcalc.html

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A rabbit ears antenna is *not* a dual dipole antenna. It is simply a dipole
antenna adjustable to a half-wavelength through, at least, the low (2-13) TV
channels.

Don