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Data Input (external Gps Mode); Display Of Host Flight Plan Data; Bendix/king Data Format - Honeywell KMD-150 Pilot's Manual

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Data Input


If you own the non-GPS version of KMD 150, or as an alternative to
using the internal GPS receiver, your KMD 150 has been wired to accept
data from a remote GPS or LORAN unit, you will be operating in External
GPS Mode and this section applies to you. The following text is an
overview only and is valid for the non-GPS KMD 150 or the full GPS ver-
sion if set to external GPS source. Refer to the KMD 150 Installation
Manual for further details.
To operate correctly from an external data source, your KMD 150
requires a 1200, 4800 or 9600 baud Bendix/King equivalent ARNAV R-
30 (RS232) data sentence. Alternatively a 1200, 4800 or 9600 baud
NMEA 0183 data sentence containing latitude, longitude, track, and
ground speed information may be used. This can take the form of a
single RMC sentence or a combination of GGA and VTG sentences. A
third alternative data input is the Northstar M3 binary data format at 1200
Once the physical connection to the host GPS or LORAN has been
made, it is essential to select an appropriate data output on the host unit.
This can be done by referring to the manual for the host GPS/LORAN
and choosing an option that corresponds to one of the compatible data
input types listed previously. Your installer should have carried this out.
Once a suitable data output type has been selected on the host
GPS/LORAN and it has a fix, switch on your KMD 150. If the host GPS
or LORAN is correctly connected, switched on and outputting data, your
KMD 150 will automatically start to read and decode the incoming data.
There is no need to set an input type on the KMD 150 as this is done



If the host GPS is outputting data in the Bendix/King equivalent ARNAV
R-30 (RS232) data sentence format, in LEG mode, the active flight plan
will be sent to the KMD 150 and will be displayed automatically when in
Map Mode. An exception to this is during the curved flight segments of
approaches (i.e. DME arcs, procedural turns and holds) when most GPS
units stop outputting flight plan data but continue to output positional
data. During a DME arc or procedural turn, the KMD 150 will continue to
show position, track and ground speed but the curved line depicting the
arc or turn will not be displayed. In OBS mode, some GPS units will not
be able to provide flight plan data. Present position is still provided and
flight plans will be displayed as soon as the mode is returned to LEG.
Rev 1 Mar/2000
KMD 150 Pilot's Guide


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