Specifications

11. Using DAC/TCG
USN52 L Operating Manual Page 73
NOTE: Data points after the first one will be automatically
adjusted to the same amplitude as the first reference echo.
Adjust gain for remaining echoes to at least 80% screen
height for optimal results.
While programming the curve, the USN52 L keeps track of
gain relative to the first reference echo.
8. Record the second echo amplitude for the curve by pressing
aligned with DAC ECHO.
9. Repeat steps 6 through 8 for all remaining reference echoes
(up to 9). Be sure to increase gain for those echoes that are
below gate threshold:
10. After the final point has been recorded, activate TCG by press-
ing
aligned with DAC/TCG.
When TCG is active, signal amplitudes are automatically compen-
sated based on the programmed curve:
The asterisk next to the DAC/TCG function indicates that a DAC/
TCG curve is stored in memory:
DAC/TCG
TCG
When TCG is active, the DAC ECHO function is replaced by the
CURVE function. You may remove the calculated DAC curve from
the display by setting CURVE to OFF: