Transionospheric radio-ray-path rate of change from polarization and frequency measurements of satellite VHF signals

The rate of change of the radio-ray-path length for transionospheric satellite signals is determined from Doppler and Faraday effect analyses for quiet ionospheric conditions. VHF beacon signals are used. The transionospheric path length of 40-MHz signals showed a natural oscillatory behavior of 1 wavelength per second.