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Battel Engineering, Inc.
10020 North 58th Street
Scottsdale, AZ  85253
office: (480) 991-9747
fax: (480) 991-9748
email: bateng@earthlink.net

77. Tether System Radiated EMC Test

Dynamic tethers are unshielded wires extending from the host spacecraft to distances that can exceed many kilometers. Since they are basically a bare wire antenna, control of radiated EMI is one of the key challenges associated with a flight qualified tether system design. This picture shows a simulated tether under test on the open-air “basketball test range” at Battel Engineering. By using relatively low frequency drive electronics and controlling transition speeds, the tether electronics system can be made to meet MIL-STD-461 standards even when operating at very high power.

 

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Image © Steve Battel, Battel Engineering, Inc. All rights reserved.