J. Ralph Johler

• Ground wave propagation in an ionized atmosphere with arbitrary variation of the conductivity with altitude
• Theoretical LF, VLF field calculations with spherical wave functions of integer order
• A complete mode sum for LF, VLF, ELF terrestrial radio wave fields
• Evaluation of convolution integrals occurring in the theory of mixed path propagation
• Ground wave propagation in a normal and an ionized atmosphere
• Loran-C, D phase corrections over irregular, inhomogeneous terrain
• Loran-D phase corrections over inhomogeneous, irregular terrain
• Low- and very low-radiofrequency tables of ground wave parameters for the spherical earth theory
• Mutual impedance of loop antennas over finitely conducting ground
• Phase of the low radiofrequency ground wave
• Propagation of loran-C ground and ionospheric wave pulses
• Propagation of the low frequency radio signal