Radio waves from a mobile phone are received by an Iridium satellite, converted to digital "packets," routed according to destination, and then reconverted to radio signals for transmission. A series of computers perform this work as well as operate the satellite. Four computers like this one, dubbed a "smart modem," manage the flow of signals among the satellite's various antennas. This onboard computing power contrasts with traditional communications satellites, which generally receive and transmit radio signals without digitally processing them.
Motorola Space and Systems Technology Group, Satellites Communications Division, the manufacturer, donated this artifact to the Museum in 1998.
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
SPACECRAFT-Uncrewed-Instruments & Payloads
Manufacturer
Motorola Space and Systems Technology Group, Satellites Communications Division
Dimensions
Overall: 8 3/4 in. tall x 8 3/4 in. wide x 9 3/4 in. deep (22.2 x 22.2 x 24.8cm)
Materials
Aluminum Alloy
Copper Alloy
Epoxy
Plastics
Ink
Inventory Number
A19990142000
Credit Line
Gift of Motorola Space and Systems Technology Group.
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
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