SYSTEM OPERATION
SeaBat 8160
Operator‟s Manual
Page 44
October 6, 2011
Version 5
5.9.10.1 How Calibration Works
A tone generator injects a tone of known amplitude and phase into the receiver
channels. When this calibration signal is received, the processor generates a
lookup table of both gain and phase offsets by comparing the received signal to
that transmitted. All subsequent signals from that channel have these offsets
applied to them before further processing. This compensates for minor
inconsistencies in the analogue receiver channels.
5.10 Changing Display Mode
To change the display mode, move the cursor to the farthest point possible in the
upper left corner of the screen and press the appropriate sequence of buttons.
The sonar processor will recall the most recent setting upon power-up.
Center and Right buttons: S-Video and Composite in NTSC format.
Center and Left buttons: S-Video and Composite in PAL format.
Left and Right buttons to return to S-VGA format.
NOTE
The standard S-VGA monitor issued with the SeaBat 8160
system is not
compatible with NTSC and PAL formats and will be blank when either is
selected. If an NTSC or PAL format is required, a separate compatible monitor
must be used with the system.
