An internal view of a typical Australian, or 'Domestic', DME installation showing the duplicated transmitters and receivers.

The equipment is an Amalgamated Wireless Australasia (AWA) DM3 with the Receiver Rack to the left and the Transmitter Rack to the right in each pair. The transmitter valves were air cooled and the ductwork can be seen running up the sides of the rack and into the centre at the top.

This equipment started out having 12 channels, but from 1966 the DM3 beacons were converted to 48 channels, at which time also much of the pulse circuitry was transistorised.

Click here to see an external view of the installation

Click here to see maintenance of this installation

(Photo: CAHS collection)

Back to the main Communications and Navigation Index

If this page appears without a menu bar at top and left, click here