Author: L. L. ProctorPublisher:
ISBN:
Category : Ionospheric radio wave propagation
Languages : en
Pages : 100
Book Description
Measurements for the month of April 1969 were made on a 2.666-MHz east-west path between Long Branch, Illinois, and Boulder, Colorado, to validate current ESSA/ITS prediction programs. After the difference between the measured observations and the computer calculations had been determined, additional path calculations centered about the Boulder receiving site were made to identify potential interfering sources. Point-to-point calculations along quadrature radials were used, with the range being incremented five times along each radial between the limits of 500 and 5000 km. The analysis determines the required transmitter power to produce a CW signal via the predominant mode which is 90 percent reliable and 12 dB above the controlling noise (atmospheric, man-made, galactic, or a combination). The averaged night values of required transmitter power including an 8-dB correction factor found from the measured observations, are tabulated by month as a function of both the bearing and range.
