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VII. Service Menu Commands and Device Settings
The Service menu is like a command line of Windows and MS-DOS or Mac OS X or Linux shell. You
should type commands (any register is allowed) and in case of a mistake, you can erase the last character
with the Backspace button.
The welcome screen (see Figure 2 in the previous chapter) is displayed once after connection from
the terminal application. To display the welcome screen again, type the HELP command and press
the Enter button. To get help with a command, type HELP and the command for which you would like to see
the help. For example, type HELP MODE and press Enter to get help for the MODE command.
1. MODE command and “exit” from service mode
The command MODE changes the operation mode of the Device. Four modes are available: 0183, N2K,
RAW and AUTO (please see the Introduction chapter for details).
To “exit” from the service mode, you should activate some other operation mode with the MODE command.
For example, after the command MODE 0183, you will see NMEA 0183 sentences in the terminal window:
?>MODE 0183
NOTE: 'Auto' mode (recommended) is turned OFF, because you manually switched
to another mode. Switching to '0183' mode, press Esc to switch back...
$--GGA,173412.00,4146.5882,N,07029.6988,W,2,13,0.80,0.00,M,0.00,M,0.00,0000*7F
$--GLL,4146.5894,N,07029.6952,W,173412.02,A*02
$--GSA,A,3,02,03,06,09,12,17,19,22,23,24,28,,0.7,0.7,0.4*2F
$--RMC,173412.00,A,4146.5882,N,07029.6988,W,6.9,62.9,280816,15.0,W,D,V*5F
$--ZDA,173412.04,28,08,2016,00,00*70
$--MWV,357.7,R,13.2,M,A*08
This means that 0183 mode is activated and you can close the terminal session. Or you can press
the Esc button to return to the service menu.
You can also close the terminal program and set an operation mode from a command line, as described
in chapter V. Note that service mode is active while the Device is powered, so you can unplug the USB cable
and plug it back in to return to the previous mode.
