Transponder

Transponder (for use with Trisponders). At the side of the object top is a pin cable entry and a screw cap. At the side of the object top is a round plastic screw cap and square plastic socket cover which protects the rectangular entry of a 1 pin cable socket.

The basic trisponder system is composed of a distance measuring unit , a master station and two remote stations. Each station is a combined transmitter and receiver. The master station has an omnidirectional antenna, and each remote station has a directional antenna. With the remote unite places over stations of known geographic positions, ranges are observed at the distance measuring unit. These values may be plotted manually on a hydrographic survey sheet or converted by trilateration methods to position values.

Object Details

ID: ZBA5038
Collection: Oceanography
Type: Transponder
Display location: Not on display
Places: London
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 387 mm x 282 mm x 155 mm