tion by also indicating the bearing and range back to the
MOB position (until the MOB is canceled). This way, other
interfaced equipment can also help guide you back to the
MOB position. When the MOB condition is canceled, the
NMEA sentences will automatically revert to the active
route information. Don’t forget to cancel the MOB so your
interfaced equipment will read the correct data.
The MOB function key and remote MOB input are dis-
abled from subsequent activation until Cancel MOB is
selected.
Other functions such as Position and Navigate can still be
accessed; however, the screen will revert to the MOB Plot
screen after 30 seconds.
To cancel an MOB condition, make sure you are in the
MOB Plot screen. Press the EDIT key, then highlight the
Cancel MOB softkey and press ENT. Press EDIT again to
exit the edit mode.
Remote MOB
The MX500 is capable of performing the MOB function
from a remote contact closure input via the AUX (8-pin)
cable. If the contact closure is made for 3 seconds, the
input is registered as a MOB Position. Refer to the instal-
lation section of this manual for wiring interface instruc-
tions.