CONSOL(redirected from bank annuity)
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A radio navigation aid that provides a number of characteristic signal zones which rotate in a time sequence; a bearing may be determined by observation of the instant at which transition occurs from one zone to the following zone. Also known as Sonne.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A low-to-medium frequency, continuous wave, simple and reliable, long-range radio aid to navigation, whose emissions, by means of their radio frequency modulation characteristics, enable bearings or position lines to be determined. It is used principally for transoceanic navigation. The only airborne receiver required operates in the frequency band of 200 to 400 kHz. The information is given in the form of position lines. A Consol station consists of three aerials located in a straight line radiating dashes and dots. These signals are heard as either dashes or dots or as a continuous tone. This pattern is overprinted over special charts. This navigation system is now extinct. Also known as Sonne.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved