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A&D Test & Measurement
Efficient Design and Analysis of Airborne Radomes
Published December 22, 2006
From: Chandrakanth Mariyappa, L&T
The way to determine the MDS is to monitor the output noise level of the receiver. Apply a signal at the input and determine the level needed to see a change at the output. This will be the MDS.
From: Bassem Okaily, Lebanon
I am sorry, but your question is a communications systems question that is outside my area of expertise. I am afraid that I cannot help you.
From: Glenn Vitale, Georgetown University Medical Center
The safe exposure rate is dependent on the frequency that affects the SAR (specific absorption rate). There is a recently updated version of the ANSI-C-95 safety standard, which is available from the IEEE at www.ieee.org. It has detailed information that should answer your question.
From: Eric Thomas
Pulsed RF fields: Exposure to very intense pulsed RF fields, similar to those used by radar systems, has been reported to suppress the startle response and evoke body movements in conscious mice. In addition, people with normal hearing have perceived pulse RF fields with frequencies between about 200 MHz and 6.5 GHz. This is called the microwave hearing effect. The sound has been variously described as a buzzing, clicking, hissing or popping sound, depending on the RF pulsing characteristics. Prolonged or repeated exposure may be stressful and should be avoided where possible.
There are no jammers available that will cancel radiated power and the civilian use of jammers of any kind is against both FCC regulations and the law. The effects that you quote are controversial and are not widely accepted as scientific fact. Reports of experiments claiming to create these effects have indicated that the power levels used are so high that other concerns are far more important.
From: Dan Grafflin, S.S.T. Data Systems/RD
I do not know if there is anything on-line; however, if you check old copies of Electronic Engineer's Master Catalog (EEM) you can probably find them. EEM is published by Hearst Business Communications Inc. in Garden City, NY (516) 227-1300.
From: Manu Gaurav, DRDO
I am afraid that I do not have enough information to answer your question. I suggest that you contact the manufacturer of the particular spectrum analyzer that you are using.
From: Mostafa Abdolhamidi, Iran Telecommunication Research Center
I am sorry but I am not an expert on the interactions of ADS. You need to contact the people who supplied the software.
From: Zubair Ahmed, National University of Sciences and Technology
Papers that are too old to be in our electronic archive are available as hard copies. If you will provide us with your mailing address, we will send them to you. There is no charge for this service.
Harlan Howe, Jr. received his BS degree in optics from the University of Rochester in 1957. He has been actively engaged in the microwave industry for 48 years, first as a design engineer and then as an engineering manager. In 1990 he became the publisher/editor of Microwave Journal. He retired as publisher in 2001, but remains the editor. He is a Life Fellow of IEEE, past president of MTT-S and the recipient of an IEEE Third Millennium Medal in 2000 and the MTT-S Distinguished Service Award in 2005.
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