B&G Deckman - Manual (Page 115)

Chapter 7: Instruments
7.10
NMEA FFD/h1000
Later Hydra and Hercules NMEA FFDs and h1000 Universal Interface
Boxes conform to the NMEA standard. However, custom software is
incorporated into these systems that allows Deckman to write data back
to the displays.
Output
The default outputs are those illustrated in the example. The variables
column shows the Deckman variable, the channel shows the B&G
channel (1 to 11) and the data column shows the current data for the
variable. The text in the Name column is associated with the channel
number, and this cannot be altered. In other words, the Deckman name
is not written out with the data to the displays. If you wish to output
different variables, then you must be careful which channel you assign
these to since the label on the display may not identify the variable.