Reference:..Gurnett, D.A. et al, The Polar plasma wave instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995.GURNETT@IOWAVE.physics.uiowa.edu
An FFT on 1024 values was used in calibrating the data; i.e., perform FFT, calibrate in frequency domain, perform inverse FFT to get calibrated time series.
Effective Bandwidth is 1.5*delta_f, where delta_f depends on the size of the FFT used to convert to the frequency domain, and delta_t.
Coordinate system used:  antenna coordinate system, where the u-axis is offset by -45 degrees from the spacecraft x-axis, the v-axis is offset by -45 degrees from the spacecraft y-axis, and the z-axis is identical to the spacecraft z-axis.
This data comes in snapshots of 190902 points distributed among 2 to 6 channels every 9.2 seconds, where the duration of the snapshot is 0.045 seconds.  Since Epoch time is in milliseconds, the times for the data points will not be unique unless the Delta_T (in milliseconds) is added to  the Epoch time for the snapshot.

Number of snapshots of size 31817 that were processed for this file

Number of FFTs of size 1024 that were processed for this snapshot

HFWR1_Flag:  If HFWR1_Flag = 1, then data is present for HFWR_Eu.

HFWR2_Flag:  If HFWR2_Flag = 1, then data is present for HFWR_Evp.

HFWR3_Flag:  If HFWR3_Flag = 1, then data is present for HFWR_Evm.

HFWR4_Flag:  If HFWR4_Flag = 1, then data is present for HFWR_Bu.

HFWR5_Flag:  If HFWR5_Flag = 1, then data is present for HFWR_Bv.

HFWR6_Flag:  If HFWR6_Flag = 1, then data is present for HFWR_Bz.