GREAT-CIRCLE AND DEVIATED-PATH OBSERVATIONS ON CW SIGNALS USING A SIMPLE TECHNIQUE
Abstract
A modification of the Pinwheel techniques of observing HF signals propagated over deviated paths was used over Pacific paths on 12, 18 and 30 Mc. Strip-chart records made of CW signals with directive receiving antennas rotating ten times as fast as similiar transmitting antennas gave distinct records of deviated scatter signals alone or co-existing with great-circle signals. By the use of precise program timers, combined receiving and transmitting azimuths for strongest signals were obtained. Although scattering from land masses or from equatorial 'spread-echo' layers seemed a possibility when scatter signals came from a relatively fixed location, most of the results examined indicated, for all frequencies, variable scattering locations on the sea, determined by skip conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1964
- Accession Number
- AD0603772
Entities
People
- Frederic H. Dickson
- Richard Silberstein