Investigation of 'Antenna Dumping' as a Means of Reducing Precipitation Interference in Airborne OMEGA.
TRACOR INC AUSTIN TX
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Omnidirectional E-field antennas e.g., whip, blade, and long-wire antennas have various practical advantages over crossed-loop antennas in airborne Omega however, experience has shown that E-field antennas are much more susceptible to precipitation static. The author has proposed that the interference effects of p-static upon E-field antennas might be reduced by periodically discharging dumping any accumulated voltage present on the antenna. The duration of each discharge would be extremely short typically 0.1 microsecond on this basis it was hypothesized that the electric field due to propogated electromagnetic signals Omega and the electrostatic field associated with p-static would show different recovery characteristics with the radiative field recovering essentially instantaneously. Author
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