Specifications

BATS AND PORTABLE BATS OPERATION
3-45
Setup  Compass Setup
This is the System Level Heading sensor setup. (Same
as clicking on the Heading Sensor line in the Project
Tree.)
The heading data can be set to off (None), Grid Only,
Data Output Only or Both Data Output and Grid. If for
example, the Navigation System was to correct for
compass heading and not BATS then set the North Ref-
erence to Grid only. The RS-232 data would not be cor-
rected for North but the Target position on the grid
would be.
The Compass Correction can either be…
 None
 Data O/P Only
 Grid Only
 Both Data O/P & Grid
Enter in the magnetic variation in degrees.
This dialog also allows the selection of the Com-
pass Sensor Input to be either from Trackman
(PC) or Trackpoint (USBL) (BATS Transceiver).
Clicking on the “TrackPoint (USBL)” button brings
up the “USBL Heading Sensor (Compass)” dialog
box. Select None (to turn off) or the interface re-
quired, either Analog as input to the BATS Trans-
ceiver’s SYNC connector located on the side panel
or the Serial port which accepts NMEA compass
sentences. The Serial input goes into the DB-9
COMMS connector located on the side panel also
of the Portable or rear panel of the Desktop.
When the compass is enabled (either Analog or
Serial, Trackman (PC) or TrackPoint (USBL)
Transceiver), the RS-232 target position data is
automatically switched to north referenced. This means that the target data (bearing, X, Y) output
to the RS-232 port is referenced to North instead of the bow of the vessel. The operator can over-
ride this by selecting Compass Setup from the main Setup Menu. Click the pull-down menu of the
dialog box and select where the Compass Correction should be applied; None, Data O/P Only,
Grid Only, Both Data O/P & Grid. The “Grid Only” function is used in situations where Trackman