PLASMA WAVE SPECTRUM
          A set of derived parameters consisting of wave electric
          field amplitudes at various frequencies over a range of
	  frequencies. The MKS units are: Volts/Meter/Hertz**.5
	  (the square root of plasma wave spectrum)
WAVE ELECTRIC FIELD AMPLITUDE
	 A measured parameter equaling the electric field amplitude    
	 in a specific frequency passband (in MKS unit:               
	 VOLTS/METER) measured in a single sensor or antenna.