B&G H2000 Pilot *DISCONTINUED* - Manual (Page 167)

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5. Press Enter to accept the new configuration.
5.14.2 Fast HDM Output Option
The two NMEA ports may be configured independently to
output HDM sentences ten times a second for the benefit of
other NMEA instruments that may require a rapid heading
update. To set this up, proceed as follows:
1. Select the MISC Menu and cycle through the
options to find NMEAPORT 1 or NMEAPORT 2
as appropriate.
2. Using the Scroll Up and Scroll Down keys scroll
to CALBRATE on the other half of the display.
Press Enter twice to show the current HDM
output rate (HDM RATE HZ).
3. Press Enter, the output rate flashes.
4. Use the Scroll Up and Scroll Down keys to adjust
the output rate: the only rates that are valid are 1
(for output once a second) and 10 (for output ten
times a second).
5. Press Enter to accept the new output rate.
When fast HDM output has been selected on a given NMEA
port HDM will be the only sentence output on that port.
5.14.3 True/Magnetic Reference Selection
When an NMEA heading source is used to drive the B&G
network the heading data may be referenced to either true
North or magnetic North. In some cases the heading source
will output both types of data, and it is necessary for the
user to select the desired reference. To do this, proceed as
follows:
1. On the NAVIGATE Menu, select HEADING.
2. Using the Scroll Up and Scroll Down keys scroll
to CALBRATE on the other half of the display.