Premium
Comment [on ‘A new interpretation of the VLF impedance measurements of island slot antennas’ by R. Barr]
Author(s) -
Morgan M. G.
Publication year - 1980
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs015i005p00965
Subject(s) - line (geometry) , phase (matter) , resonance (particle physics) , physics , electrical impedance , terrain , deception , phase velocity , geology , acoustics , optics , atomic physics , mathematics , law , geography , geometry , quantum mechanics , cartography , political science
The contention by Wait (1979) and Barr (1980) that the resonance at 9.5 kHz observed at the input to the Deception Island feed line (Morgan, 1979) was due merely to reduced phase velocity on the feed line is disputed. Greatly reduced phase velocity occurs only when a line is buried or laid on smooth earth, but the line at Deception Island was laid over very rough and steep terrain, and a resonance at 60 kHz demonstrated that the phase velocity on the line was essentially that of free space.