BK Medical bkSpecto, Advanced User'S Manual

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68 Chapter 7 August 2018 bkSpecto Advanced User Guide (16-01642-01)
It is still possible to adjust the Auto Gain setting. You do this by tapping and sliding
the
Auto Gn. Level button.
The Auto gain level is displayed on the button, and bottom center of the monitor as
you slide the button.
Zoom
To zoom in or out on the area you are interested in, adjust the Zoom box and then
make the part of the image that is inside the box fill the monitor.
NOTE:
To zoom in on a small part of the image, make the box smaller.
To use the Zoom box (zoom on different parts of the image):
1
Tap Zoom . A green zoom box appears on the image.
2
Tap the trackpad to activate the zoom box. Now only one corner is green.
3
Drag this corner to adjust the size of the zoom box.
4
Tap Zoom again to zoom in on the image.
To return to the original image:
•
Tap Zoom .
You can also zoom a frozen image.
Depth
With a full 2D image, you adjust the depth to cut out parts below the part you are
interested in. The image always includes the transducer surface, so this key changes
the magnification of the image, stretching, or compressing it.
Adjusting the depth of a zoomed image changes the magnification even though the
transducer surface is not necessarily visible at the top of the image.
To adjust the depth:
1
Flick the Depth bar backward to increase depth. You can also tap the near end
to increase depth incrementally.
2
Flick the Depth bar forward to decrease depth. You can also tap the far end to
decrease depth incrementally.
Note that you can change the direction for increasing/decreasing Depth in the User
Preferences. See page 152.
Grayscale Map
Several gray scales can be used to display a 2D image. Different gray scales may
make various aspects of the image clearer.
To adjust the gray scale:
•
Touch and slide the Map scale button: