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The mini-O, a digital superhet, or a truly low-cost Omega navigation receiverA quartz tuning fork filter circuit and some unique CMOS clock logic methods provide a very simple OMEGA-VLF receiver with true hyperbolic station pair phase difference outputs. An experimental system was implemented on a single battery-operated circuit board requiring only an external antenna preamplifier, and LOP output recorder. A bench evaluation and preliminary navigation tests indicate the technique is viable and can provide very low-cost OMEGA measurement systems. The method is promising for marine use with small boats in the present form, but might be implemented in conjunction with digital microprocessors for airborne navigation aids.
Document ID
19760009995
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Burhans, R. W. (Ohio Univ. Athens, OH, United States)
Date Acquired
September 3, 2013
Publication Date
November 1, 1975
Subject Category
Aircraft Communications And Navigation
Report/Patent Number
OU-TM-20(NASA)
NASA-CR-144923
Accession Number
76N17083
Funding Number(s)
CONTRACT_GRANT: NGR-36-009-017
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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