Constant Gain - Sensors & Software pulseEKKO PRO User Manual

pulseEKKO PRO 3-System Setup Parameters
Figure 3-20: Display of a data section over buried tanks. An SEC gain was applied before plotting.
The only user variable for the SEC gain is the Alpha Gain Applied value. This quantity represents the
radar wave attenuation given in decibels/metre. A typical value is 0.5 to 5.
3.5.2.3

Constant Gain

This routine will apply a constant gain factor to the input data set. The only parameter required is the
constant factor to multiply all data points by. Thus if the user enters the number 10, all data points will be
multiplied by a factor of 10. This will gain strong signals and weak signals equally and result in the clipping
of strong signals.
The advantage of a constant gain is that it is easy to understand how the amplification works. The
disadvantage of a constant gain is that it tends to over-gain the strong signals at the beginning of the trace
Figure 3-21.
The parameter needed for the Constant gain function is the Constant Multiplier. Typical values for the
Constant gain are in the range from 5 to 1000.
61