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This is an unflown Gemini high frequency whip antenna. Each capsule had two of these extendable/retractable antennas that were used in the voice communications system during the orbiting and postlanding phases. This system enabled ground controllers and the astronauts to talk with one another. The system's transmitters and receivers operated on a frequency of 15.016 megahertz and an output power of five watts. Raymond Engineering Laboratory made the antenna and the National Aeronautics and Space Administration transferred it to NASM in 1970.

 Display Status This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type EQUIPMENT-Aerials & Antenna Manufacturer Raymond Engineering Laboratory Dimensions 3-D: 61.9 × 8.9 × 8.9cm (2 ft. 3/8 in. × 3 1/2 in. × 3 1/2 in.)
 Materials HAZMAT: Cadmium Plating
Aluminum
Coating
Plastic
Steel
Bakelite
Rubber
 Inventory Number A19720467000 Credit Line Transferred from the National Aeronautics and Space Administration Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.