# Transmission lines (feeders)

### Explanation of question 5

A coaxial feeder connected to an antenna is

1. unbalanced and should be of length a multiple of /2
2. unbalanced and should be as short as possible
3. balanced and should be of length a multiple of /2
4. balanced and should be as short as possible

The answer is :- 2 A coaxial feeder is an unbalanced feeder, as opposed to a balanced two-wire feeder. To minimise losses it should be as short as possible.

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