This simple user manual should be the starting point and a minimal knowledge base for anyone who wants to operate the sonograph in medlab.
Full documentation is available in medlab.
Freeze - pause image
Next to Gain (lower right)
Distance measurement
M mode
Cursor is displayed on the screen
Use trackball to navigate to starting point
Press Channel 1
Navigate to the end point
Press Channel 1
(Repeat with Channel 2 is appropriate)
B mode
Basically the same as M mode
Trace
Draw on screen
Trackball on starting point
Channel 1
Trackball draws line
Channel 1 closes the circuit
Repeat with Channel 2 if appropriate
Press Trace again to leave
Ellipse - draw ellipse
Trackball on one end of primary axis
Channel 1
Trackball to the end of primary axis
Channel 1
Use trackball to modify the secondary axis of the ellipse/circle drawn
Repeat with Channel 2 if appropriate
Press Ellipse to leave
Notes - Type text on screen
Press Char
Trackball on position
Type the text
Repeat ^^
Compatible with measurement mode
Press Char to clear the text
Recording: the machine has composite video output. There is an USB grabber connected. Use mplayer to view and something like cheese (from Gnome) to capture, or VLC to view and capture/encode/store at once.