An automatic instantaneous indicator of skip distance and muf
1945
C' ait automatic instantaneous indicator of skip distance and hotThe past five years have seen much progress in the techniques of pre¬ diction and use of ionospheric data in radio communications and direction finding.Insofar as operations are concerned, ho\\/ever, the use of iono¬ spheric data has "been largely on a statistical basis.For example, we can predict, with reasonable accuracy, frequencies which will be usable over specific paths on a certain number of days during the month, but it has so far not been practicable to predict just which days those will be.