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8300-088 AeroCruze 110 Installation Manual
Rev 1 Page 13
© Honeywell International Inc. Do not copy without express permission of Honeywell.
9 GPS SETUP GUIDE
Many new handheld GPS’s have adequate output required to fly a TruTrak autopilot. Although most
support data output not all handhelds will provide consistent and reliable information required to fly all
TruTrak autopilots. Therefore, some handhelds will not fly the airplane well. Performance may decline
by putting the processor in high-load situations.
We require a data output rate of once per second for best performance. Some handhelds output data
at longer intervals than once per second. These handhelds will cause the autopilot not to perform well
in turns and it may cause overshooting and hunting. If the baud rate is selectable the optimum setting is
4800. Most handhelds will require a data cable that plugs into the handheld and provides a medium for
data output. This is an accessory and is available from your GPS manufacturer. The setup procedures
are in your GPS manual. If your GPS is not listed here consult your GPS manual for NMEA output setup.
The autopilot must have a direct connection with the handheld GPS to provide the autopilot with RS-
232. To allow the handheld GPS to be removed easily you should add a connector in your panel. We
recommend that you use a 9 pin D subminature connector in your panel that will mate to the harness
from the GPS. This will also allow you to wire power and ground and use the aircraft electrical system to
power your handheld GPS.
9.1 Garmin GPS III
The Garmin III requires a Power/data cable (Garmin Part Number 010-10082-00) to provide data output.
The Garmin III must be configured to provide the correct output to the autopilot.
Press the MENU key twice. Select ‘Setup’. Press ENTER. Select the ‘Interface’ tab. Press ENTER. Select
the NMEA format.
Note: The default baud rate is 4800. This is the baud rate that will be entered into the autopilot in the
setup mode.
9.2 Garmin GPS 92
The Garmin 92 requires a Power/data cable (Garmin Part Number 010-10082-00) to provide data
output. The Garmin 92 must be configured to provide the correct output to the autopilot.
Press the PAGE key until the ‘Main Menu’ appears. Select ‘Setup Menu’ and press ENTER. Next
select ‘Interface.’ Press ENTER. Select NONE/NMEA.
Note: The default baud rate is 4800. This is the baud rate that will be entered into the autopilot in the
setup mode.
9.3 Garmin GPS 195
The GPS 195 provides data output every two seconds and may be slow in recognizing turns and will
overshoot the desired track. This may cause the autopilot to wander and not perform well in turns.
The Garmin 195 requires a Power/data cable (Garmin Part Number 010-10135-00) to provide data
output. The Garmin 195 must be configured to provide the correct output to the autopilot.
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