Object Details
- Manufacturer
- COMSAT Laboratories
- Summary
- Early geosynchronous satellites, orbiting more than 35,000 kilometers (22,000 miles) above the Earth, faced a problem: a voice signal traveling from Earth to a satellite and back developed an echo, making phone conversation difficult. In the early 1970s, COMSAT Laboratories developed an "echo canceller" to correct this problem. This invention made communications via satellite similar in quality to local telephone calls and enhanced public acceptance of the new technology.
- COMSAT Laboratories donated this artifact to the Museum in 1999.
- Credit Line
- Gift of COMSAT Laboratories.
- Inventory Number
- A19990146000
- Restrictions & Rights
- Usage conditions apply
- Type
- EQUIPMENT-Communications Devices
- Materials
- Aluminum
- Ferrous Alloy
- Plastics
- Paper
- Ink
- Adhesive
- Paint
- Copper Alloy
- Electronic Components
- Dimensions
- 3-D (5k): 48.3 × 17.8 × 12.7cm (1 ft. 7 in. × 7 in. × 5 in.)
- 3-D: 5kg (11lb.)
- Country of Origin
- United States of America
- See more items in
- National Air and Space Museum Collection
- Location
- National Air and Space Museum in Washington, DC
- Exhibition
- One World Connected
- National Air and Space Museum
- Record ID
- nasm_A19990146000
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/nv99717134d-2aa3-4b9f-b917-bbfd2b15b407
