910-269-EN, Rev. B, June 2011
236 Chapter 11
IF Float
Activate/Deactivate the floating gate feature for the interface gate (if available).
Level
Level (in dB) at which the gate tracks below the peak amplitude of the gated
indication (interface gate).
Figure 11-26 Floating gate setup page
Once the desired setup for floating gate is adjusted, press [ESCAPE] to return to the
live A-scan view and begin the inspection with floating gate features active.
11.6.2 Operating in –6 dB Mode
In –6 dB mode, the desired gate floats at 6 dB below the peak-echo amplitude in the
gate. This corresponds to 50
% of the echo’s maximum height. Figure 11-27 on
page 237 depicts gate 1 with floating gate active in the –6 dB mode. Note that the gate
is exactly at 50 % of the echo’s peak amplitude. The peak amplitude is at
approximately 80
% of the full-screen height.
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