The remote is an infra red device and must be directed at the display when in
use. Use the
Z
+ or
Z
keys to increase or decrease the backlight intensity and
use the CH + or CH keys to cycle up or down through the data fields. The red
LED on the remote will flash to confirm each key press.
Pressing
Z
and CH simultaneously will switch to the test mode where the
display unit will show the NMEA sentence headers it is receiving.
USING THE TEST FACILITY.
To determine which NMEA messages are available on the input channels, first
put the unit into test mode by simultaneously pressing
Z
and CH . The unit will
now display the current channel number and the first NMEA message type. (Note
The large digits are made up of seven elements and cannot display some
characters. Refer to table 1 for substitution characters.) Pressing CH and CH+
allows you to scroll through all message types on all input channels.
Simultaneously pressing
Z
and CH again returns to normal operation.
SKIPPING UNWANTED DATA SCREENS.
Any data screen that is not required can be deleted. First select the unwanted
screen then press SKIP on the data control box. That screen will not be displayed
in future presses of the channel selection keys. To reset all deleted screens press
CLEAR on the data control box.
SOFTWARE UPDATES.
Additional NMEA sentences will be made available by popular demand. The
latest list (issue number ???.) is available on the NASA Marine website. To
determine the software issue number simultaneously press both keys on the data
control box.
TABLE 1
5
