Installation manual

114 | Simrad MX500
Gyro:
Set the constant Gyro Heading Offset (or bias) if any.
Specify the input NMEA 0183 record for the Input
Sentence. HDT, HDG, HDM, HCC, HCD, VHW, or Any.
MX575A:
Set the constant MX575A Heading Offset (or bias) if
any. If the MX575A is used as a positioning and heading
device, set Data input port no: to 3. If the MX575A is
used as a heading device only, set Data input port no: to
any available port (1 or 2) other than port 3 (See MX575A
Satellite Compass Installation & Operation Manual for
details).
Datum - Current Position Calculation
This screen controls which datum the receiver uses
to display any position. There are over 100 datums to
choose from. Appendix A provides a complete list of
available datums. You can enter an offset to WGS-84 if
your specific datum is not provided for in the receiver.
Use the Previous or Next softkeys or the cursor key to
scroll through the list until you find the datum you need.
Highlight Escape then press ENT to go back to the origi-
nal datum displayed when you first pressed the EDIT
key.