An Economic Method to Increase Equipment Rack Shielding
ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California === The ALMA Project is developing a 66 antenna radio astronomy array on a 5000...
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ndltd-arizona.edu-oai-arizona.openrepository.com-10150-6061632016-04-22T03:01:44Z An Economic Method to Increase Equipment Rack Shielding Ridgeway, Robert Newton, Henry Digi International Inc. National Radio Astronomy Observatory Rack Shielded Zotefoam Astronomy ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California The ALMA Project is developing a 66 antenna radio astronomy array on a 5000 meter mountain in Chile. Radio astronomy depends on a radio frequency quiet area. The remote mountain top is ideal for such a radio astronomy array. However, RFI from equipment inside one type of antenna had a path loss of 13 dB to its feed area, when measured at 100 GHz. Carbon filled foam is being used to enhance shielding to reduce the negative effect of local radio frequency interference (RFI). This foam has been measured and verified to be effective from 1 to 100 GHz. 2008-10 text Proceedings 0884-5123 0074-9079 http://hdl.handle.net/10150/606163 http://arizona.openrepository.com/arizona/handle/10150/606163 International Telemetering Conference Proceedings en_US http://www.telemetry.org/ Copyright © held by the author; distribution rights International Foundation for Telemetering International Foundation for Telemetering |
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en_US |
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Rack Shielded Zotefoam Astronomy |
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Rack Shielded Zotefoam Astronomy Ridgeway, Robert Newton, Henry An Economic Method to Increase Equipment Rack Shielding |
description |
ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California === The ALMA Project is developing a 66 antenna radio astronomy array on a 5000 meter mountain in Chile. Radio astronomy depends on a radio frequency quiet area. The remote mountain top is ideal for such a radio astronomy array. However, RFI from equipment inside one type of antenna had a path loss of 13 dB to its feed area, when measured at 100 GHz. Carbon filled foam is being used to enhance shielding to reduce the negative effect of local radio frequency interference (RFI). This foam has been measured and verified to be effective from 1 to 100 GHz. |
author2 |
Digi International Inc. |
author_facet |
Digi International Inc. Ridgeway, Robert Newton, Henry |
author |
Ridgeway, Robert Newton, Henry |
author_sort |
Ridgeway, Robert |
title |
An Economic Method to Increase Equipment Rack Shielding |
title_short |
An Economic Method to Increase Equipment Rack Shielding |
title_full |
An Economic Method to Increase Equipment Rack Shielding |
title_fullStr |
An Economic Method to Increase Equipment Rack Shielding |
title_full_unstemmed |
An Economic Method to Increase Equipment Rack Shielding |
title_sort |
economic method to increase equipment rack shielding |
publisher |
International Foundation for Telemetering |
publishDate |
2008 |
url |
http://hdl.handle.net/10150/606163 http://arizona.openrepository.com/arizona/handle/10150/606163 |
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