effective earth radius

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effective earth radius [ə¦fek·tiv ′ərth ‚rād·ē·əs]

(communications)

A radius value used in place of the geometric radius to correct for atmospheric refraction in estimating ranges of antennas when the index of refraction in the atmosphere changes linearly with height; under conditions of standard refraction it is ⁴⁄₃ the geometric radius. Also known as effective radius of the earth.

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No references found			Efendiev, Sultan Medzhid Efert-Klusais, Ernest eff Effect of a Statute effective effective address effective air path effective ampere effective angle of attack effective antenna length effective aperture effective area effective area of reinforcement effective atmosphere effective bandwidth effective bond effective capacitance effective center effective computable effective confusion area effective current effective decline rate effective depth effective discharge area effective dose 50 effective earth radius effective energy effective exhaust velocity effective facsimile band effective field intensity effective firing time effective flange width effective force effective fragment effective gun bore line effective gust velocity effective half-life effective height effective horizon effective horsepower effective instruction effective isotropic radiated power effective launcher line Effective Length effective lethal phase effective magnetic length Effective Mass effective molecular diameter effective molecular weight Effective Monetary Demand of the Population effective multiplication factor			Effective Date of Training Effective Date Unit Enters Federal Active Duty Effective debt Effective Debts effective decline rate Effective Degradation Years Effective Degrees of Freedom Effective Density of States effective depth Effective Development Group Effective Dielectric Constant Effective Direct Fire effective discharge area effective dose effective dose effective dose effective dose effective dose Effective dose 50 Effective dose 50 Effective Dose at 35% Effective dose equivalent Effective dose equivalent effective dose equivalent limit Effective dose n Effective Downwind Effective Downwind Report Effective Draft Temperature Effective Drug & Alcohol Solutions Effective duration effective earth radius Effective Educational Practices effective energy Effective English Communication for Teaching and Research Effective English for Postgraduate Research Students Effective Enterprise Java Effective Environmental Concentration effective exhaust velocity Effective Expected Positive Exposure effective facsimile band Effective Fade Margin Effective Family Contribution Effective Feedback, Enhanced Learning effective field intensity Effective Field Size Effective field theory Effective Filtration Pressure effective firing time effective flange width Effective focal length Effective focal length Effective focal length Effective focal length effective focal spot effective focal spot effective focal spot effective focal spot effective focus effective focus effective focus effective focus

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