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Title
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Electronic Instrumentation for the Study of Air-to-Air Electromagnetic Wave Propagation at 250, 1000 and 3000 MC
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Date
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1952
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Index Abstract
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Coming Soon
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Photo Quality
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Undetermined
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Report Number
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WADC TR 52-268
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Creator
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White, Stanley B.
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Corporate Author
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Aircraft Radiation Laboratory
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Laboratory
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Aircraft Radiation Laboratory
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Extent
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53
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NTRL Accession Number
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AD004089
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Identifier
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AD0004089
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AD Number
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4089
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Access Rights
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Unknown
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Distribution Classification
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1
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DTIC Record Exists
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Yes
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Distribution Change Authority Correspondence
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AFAL LTR
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Distribution Change Action Date
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7/25/2001
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Abstract
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Electric instrumentation was developed for air-to-air propagation on measurements at 250-, 1000-, and 3000-mc ranges. A square-wave-modulated crystal-controlled transmitter for 245 and 1000 mc was used with an 18-c- bandwidth filter-amplifier and an APR-4 receiver, while a peak reader with an internally generated carrier was used with the receiver for short-pulse modulation measurements at 256, 2880, and 3295 mc. The rectified output from either the filter-amplifier or peak reader operated a recorder which continuously recorded the received signal on an approximately logarithmic scale. The receiving system using square-wave modulation detected and recorded 107-dbm signals and had a dynamic range of well over 100 db. The short-pulse receiving system detected and recorded signals down to the noise level of the receiver, and had a dynamic range of over 85 db. The 2 systems operated satisfactory with existing radio and radar equipment.
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Report Availability
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Not available via Contrails
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Date Issued
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1952-08
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Index In
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DTIC
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Type
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report