The picture on the left shows the tower which supports the WS antenna system.

Our antenna is the one at the top of the mast to the left. It is a single folded dipole about 22 meters AGL. The aerial is fed by a 30 meter run of Andrews LDF-450 coaxial.

The antenna is spaced one quarter wavelength from the mast with an orientation of 270 degrees.

The system is fed via a four cavity sinclair duplexer, at the 'T' piece of which is a ferrite circulator.

Each cavity has an insertion loss of about 0.5dB at the wanted frequency and a reject notch in excess of 55dB at the unwanted frequency.

There are two cavities in the transmit leg and two in the receive path which allows the repeater to run single aerial working in order to achieve a reciprocal transmit and receive path.