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Do I need a balun on a dipole?
A dipole is what is termed a balanced antenna. In an ideal world a balun should be used with coaxial feeder (which is unbalanced) to make the transition between balanced and unbalanced systems. The use of a balun will prevent the coax radiating any power or picking up any noise.
Does a dipole require a balun?
Paul, a dipole does not *have* to have a balun. Having one may help prevent RF from coming down the line into the shack and may improve the radiation characteristics of the dipole, but I’ve run dipoles connected straight to coax without a problem. Put one up without a balun and see how it works for you.
What is a balun or Unun?
A Balun is used to match a balanced line to an unbalanced line. An Unun is used to match an unbalanced line to another unbalanced line. This is a 4:1 Current Balun.That means it can match a 200ohm antenna to a 50 feed line. If you plan on stringing up a dipole you use 2 equal lengths of wire with the Balun in the middle.
What is RF balun?
RF Balun Basics & Selection. A Balun is a device that is used to join a balanced line to an unbalanced line. A balanced line is one that has two terminals, neither of which are connected to the ground, whereas an unbalanced line has one terminal connected to ground. RF Baluns can also be used as transformers to provide impedance transformations.
What is a dipole TV antenna?
Dipole means “two poles,” and is typically the simplest type of antenna, such as the familiar “rabbit ears” on a television. Multiband refers to radio communications across frequencies reserved for uses such as air band, public services, marine band , and citizens band, television, and commercial radio transmissions.
What is a center loaded dipole?
The centre-loaded dipole is a single band antenna most useful when there is insufficient space to erect a full size 1/2-wave dipole so most likely it will be used on the 40m and lower frequency bands.